ethylene oxide profile

Ethylene Oxide: A colorless and flammable gas at room temperature and pressure. Ethylene oxide is a bactericidal, fungicidal, and sporicidal disinfectant. It is effective against most micro-organisms, including viruses. It is used as a fumigant for foodstuffs and textiles and as an agent for the gaseous sterilization of heat-labile pharmaceutical and surgical materials. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p794) [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

oxirane : A saturated organic heteromonocyclic parent that is a three-membered heterocycle of two carbon atoms and one oxygen atom. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

ID Source	ID
PubMed CID	6354
CHEMBL ID	1743219
CHEBI ID	27561
MeSH ID	M0007902

Synonym
AKOS009031564
oxyde d'ethylene
1,2-epoxyaethan
oxyfume
oxidoethane
amprolene
CHEBI:27561 ,
dimethylene oxide
1,2-epoxyethane
aethylenoxid
epoxyethane
ETO ,
anprolene
anproline
oxacyclopropane
dihydrooxirene
ethene oxide
oxiranyl
C0527
e.o.
merpol
ent-26263
etilene (ossido di) [italian]
oxirene, dihydro-
etylenu tlenek [polish]
einecs 200-849-9
nci-c50088
oxiran
ccris 297
ethylene (oxyde d') [french]
oxiraan [dutch]
alpha,beta-oxidoethane
ai3-26263
rcra waste number u115
hsdb 170
un 1040
fema no. 2433
oxyfume 12
qazi-ketcham
t-gas
ethox
aethylenoxid [german]
epa pesticide chemical code 042301
un1040
1,2-epoxyaethan [german]
ethyleenoxide [dutch]
rcra waste no. u115
caswell no. 443
oxide, ethylene
D03474
inchi=1/c2h4o/c1-2-3-1/h1-2h
C06548
75-21-8
oxirane
ethylene oxide
ethylene oxide, >=99.5%
E0690
E0692
E0689
E0693
E0647
CHEMBL1743219
ethylenoxide
ethyleneoxide
oxiraan
ethylene oxide, or ethlene oxide with nitrogen up to a total pressure of 1mpa (10 bar) at 50 degrees c
etilene (ossido di)
etylenu tlenek
ethyleenoxide
ec 200-849-9
ethylene (oxyde d')
jjh7gnn18p ,
ethylene oxide, or ethlene oxide with nitrogen up to a total pressure of 1mpa (10 bar) at 50 degrees c [un1040] [poison gas]
unii-jjh7gnn18p
ciba-geigy 9138
ethylene oxide [who-dd]
ethylene oxide [iarc]
ethylene oxide [mi]
ethylene oxide [fhfi]
ethylene oxide [mart.]
ethyleneoxy
ethylene oxide [hsdb]
EPITOPE ID:116215
1,2-epoxy ethane
monooxirane
epoxy ethane
mfcd00014482
sterilizing gas ethylene oxide 100%
.alpha.,.beta.-oxidoethane
DTXSID0020600 ,
ethylene oxide, >=99.9%
ethylene oxide, purum, >=99.8%
ethylene oxide 1000 microg/ml in triacetin
oxirane; ethylene oxide
ethylene-oxide
11104-97-5
Q407473
epoxide or oxirane
ethylene oxide (iarc)
caswell no 443
usepa/opp pesticide code: 042301
e o
ethylene oxide (mart.)
dtxcid60600
fema no 2433
alpha, beta-oxidoethane

Excerpt	Reference	Relevance
"Ethylene oxide is a highly reactive chemical primarily used as an intermediate in chemical production and as a sterilant of medical equipment and food products; it also is produced endogenously as a result of physiological processes. "	( Systematic review of the scientific evidence on ethylene oxide as a human carcinogen. Calabrese, EJ; Divis, HR; Freid, RD; Kozal, JS; Lynch, HN; Mundt, KA; Russell, AJ; Thompson, WJ, 2022)	2.42
"Ethylene oxide (EO) is a reactive epoxide. "	( The association between ethylene oxide exposure and asthma risk: a population-based study. Chen, Z; Fan, L; Li, M; Li, Z; Lin, S; Shi, P; Zhang, W; Zheng, T, 2023)	2.66
"Ethylene oxide (EtO) is a carcinogenic gas used in chemical production and to sterilize medical equipment that has been linked to risk of breast and lymphohematopoietic cancers in a small number of occupational studies. "	( Ethylene oxide emissions and incident breast cancer and non-Hodgkin lymphoma in a US cohort. Buller, ID; Fisher, JA; Gierach, G; Jones, RR; Liao, LM; Medgyesi, DN; Silverman, DT; Ward, MH, 2023)	3.8
"Ethylene oxide (EtO) is a volatile, ringed toxic ether used to sterilize heat-labile plastics including apheresis sets. "	( Ethylene oxide-type hypersensitivity reactions in G-CSF mobilized, peripheral blood hematopoietic progenitor cell donors and review. Cooling, L; Sherbeck, J, 2023)	3.8
"Ethylene oxide (EO) is a ubiquitous organic compound and adversely affects human health."	( Association between ethylene oxide exposure and prevalence of COPD: Evidence from NHANES 2013-2016. He, B; Huang, Q; Li, S; Nan, W; Wan, J, 2023)	1.96
"Ethylene oxide (EtO) is an industrial gas that was recently reassessed to pose significant additional cancer risk at low ambient concentrations. "	( Suitability of new and existing ambient ethylene oxide measurement techniques for cancer inhalation risk assessment. Kaiser, J; Mei, EJ; Moore, AC, 2023)	2.62
"Ethylene oxide (EtO) is a widely used industrial chemical with recognized health risks. "	( Associations of ethylene oxide exposure and "Life's Essential 8". Huang, X; Liu, C; Liu, L; Xie, R; Xie, S; Zhang, Y, 2023)	2.7
"Ethylene oxide (EtO) is a highly reactive organic compound that is mainly used as a sterilizing agent. "	( Association between blood ethylene oxide levels and the risk of cardiovascular diseases in the general population. Wang, X; Wu, KH; Zeng, G; Zhang, Q, 2021)	2.36
"Ethylene oxide (EO) is a direct acting alkylating agent; in vitro and in vivo studies indicate that it is both a mutagen and a carcinogen. "	( Dose and temporal evaluation of ethylene oxide-induced mutagenicity in the lungs of male big blue mice following inhalation exposure to carcinogenic concentrations. Allen, B; Chen, Y; Gollapudi, BB; Haber, LT; Manjanatha, MG; McKim, KL; Moore, MM; Moore, NP; Myers, MB; Parsons, BL; Shelton, SD, 2017)	2.18
"　Ethylene oxide gas is an agent in the sterilization of medical devices due to its effectiveness and compatibility with most materials. "	( Ethylene Oxide Gas Sterilization of Medical Devices. Shintani, H, 2017)	2.81
"Ethylene oxide (EO) is a reactive gas used by numerous industries and medical facilities as a sterilant, a fumigant, and as a chemical intermediate in chemical manufacturing. "	( Skin Absorption of Ethylene Oxide Gas Following Exposures Relevant to HAZMAT Incidents. Baxter, C; Crea, J; Gaskin, S; Heath, L; Logan, M; Pisaniello, D, 2017)	2.23
"Ethylene oxide (EO) is a genotoxicant and a mouse lung carcinogen, but whether EO is carcinogenic through a mutagenic mode of action remains unclear. "	( Temporal changes in K-ras mutant fraction in lung tissue of big blue B6C3F₁ mice exposed to ethylene oxide. Gollapudi, BB; Haber, LT; Manjanatha, MG; McKim, KL; Moore, MM; Moore, NP; Myers, MB; Parsons, BL; Shelton, SD; Wang, Y, 2013)	2.05
"Ethylene oxide (EO) is a highly reactive gas used in sterilisation of heat sensitive medical devices, such as infusion sets, cannulae, intubation materials, ventriculoperitoneal shunts, dialysis catheters and stents. "	( Type I allergic hypersensitivity reactions due to ethylene oxide sterilised leucocyte filters in patients with thalassaemia: report of four cases. Belen, B; Polat, M, 2015)	2.11
"Ethylene oxide (EO) is a widely used chemical intermediate also formed endogenously from ethylene metabolism. "	( Mutagenicity of DNA adducts derived from ethylene oxide exposure in the pSP189 shuttle vector replicated in human Ad293 cells. Brown, K; Farmer, PB; Jones, DJ; McLuckie, KI; Tompkins, EM, 2009)	2.06
"Ethylene oxide is a chemical of significance in life science for its critical role as a highly effective sterilizing agent for heat sensitive surgical instruments."	( Temperature-programmable low thermal mass silicon micromachined gas chromatography and differential mobility detection for the fast analysis of trace level of ethylene oxide in medical work place atmospheres. Cortes, HJ; Gras, R; Luong, J; Shellie, RA, 2012)	1.3
"Ethylene oxide (ETO) is a sterilant gas considered to be a human carcinogen, due primarily to excess hematopoietic cancer in exposed cohorts. "	( Ethylene oxide and breast cancer incidence in a cohort study of 7576 women (United States). Deddens, J; Stayner, L; Steenland, K; Ward, E; Whelan, E, 2003)	3.2
"Ethylene oxide is an effective sterilizing agent for bacteriological broths, milk, and serum. "	( The sterilization of bacteriological media and other fluids with ethylene oxide. BRUNO, P; WILSON, AT, 1950)	1.91
"Ethylene oxide (EO) is an important industrial compound and a directly acting mutagen. "	( Development of a competitive immunoassay for the determination of N-(2-hydroxyethyl)valine adducts in human haemoglobin and its application in biological monitoring. Aston, P; Ball, L; Boogaard, P; Jones, A; Will, W, )	1.57
"Ethylene oxide (EO) is an important industrial chemical that is classified as a known human carcinogen (IARC, Group 1). "	( Effects of ethylene oxide and ethylene inhalation on DNA adducts, apurinic/apyrimidinic sites and expression of base excision DNA repair genes in rat brain, spleen, and liver. Asakura, S; Koc, H; Kosyk, O; Li, Y; Nakamura, J; Rusyn, I; Swenberg, JA; Upton, PB, 2005)	2.16
"Ethylene oxide is a multisite carcinogen in rodents and classified as a human carcinogen by the National Toxicology Program. "	( K-ras mutations in lung tumors and tumors from other organs are consistent with a common mechanism of ethylene oxide tumorigenesis in the B6C3F1 mouse. Hong, HH; Houle, CD; Sills, RC; Ton, TV, 2007)	2
"Ethylene oxide (EO) is a well-known sterilizing agent. "	( Ethylene oxide sterilization of medical devices: a review. Brandão, TR; Mendes, GC; Silva, CL, 2007)	3.23
"Ethylene oxide (EtO) is a reactive epoxide and potent biocide. "	( Ethylene oxide: an overview of toxicologic and epidemiologic research. Burg, JR; Gordon, J; Landrigan, PJ; Lemen, RA; Lewis, TR; Lipscomb, JA; Mazzuckelli, LF; Meinhardt, TJ, 1984)	3.15
"Ethylene oxide was found to be a potent inducer of chromatid-type aberrations in a human amniotic cell line. "	( Chromosomal aberrations induced by ethylene oxide in a human amniotic cell line in vitro. Papadopoulo, D; Poirier, V, )	1.85
"Ethylene oxide is an important initial product for a number of organic compounds and, in addition, is used in the medical field for sterilization. "	( [Carcinogenic activity of ethylene oxide and its reaction products 2-chloroethanol, 2-bromoethanol, ethylene glycol and diethylene glycol. I. Carcinogenicity of ethylene oxide in comparison with 1,2-propylene oxide after subcutaneous administration in mic Dunkelberg, H, 1981)	2.01
"Ethylene oxide (ETO) is an important industrial intermediate used extensively in the production of ethylene glycol, as a fumigant, and as a sterilant of choice for various medical devices. "	( Ethylene oxide: induction of specific-locus mutations in the ad-3 region of heterokaryon 12 of Neurospora crassa and implications for genetic risk assessment of human exposure in the workplace. Brockman, HE; de Serres, FJ, 1995)	3.18
"Ethylene oxide (EtO) is an important intermediate industrial chemical which is also used for sterilizing medical products and hospital equipment. "	( Biological monitoring of workers occupationally exposed to ethylene oxide. Costa, SL; Natarajan, AT; Ribeiro, LR; Rios, AC; Salvadori, DM; Tates, AD; Törnqvist, M, 1994)	1.97
"Ethylene oxide (EO) is a direct-acting mutagen and animal carcinogen used as an industrial intermediate and sterilant with a high potential for human exposure. "	( In vivo and in vitro kinetics of ethylene oxide metabolism in rats and mice. Brown, CD; Fennell, TR; Wong, BA, 1996)	2.02
"Ethylene oxide is a gas used in some dental offices to sterilize equipment. "	( Ethylene oxide exposure may increase the risk of spontaneous abortion, preterm birth, and postterm birth. Baird, DD; Darden, B; Rowland, AS; Shore, DL; Wilcox, AJ, 1996)	3.18
"Ethylene oxide gas is a viable alternative to gamma radiation in air that avoids oxidation and fatigue strength degradation known to accompany irradiation of ultrahigh molecular weight polyethylene polymer bearing surfaces in total joint implants."	( Fatigue strength of polyethylene after sterilization by gamma irradiation or ethylene oxide. Beals, N; Gunther, J; Ries, MD; Rose, RM; Sauer, W; Weaver, K, 1996)	1.24
"Ethylene oxide (EO) is a direct-acting alkylating agent with the potential to induce cytogenetic alterations, mutations, and cancer. "	( In vivo mutagenicity of ethylene oxide at the hprt locus in T-lymphocytes of B6C3F1 lacI transgenic mice following inhalation exposure. Recio, L; Sisk, SC; Upton, PB; Walker, VE; Wong, BA, 1997)	2.05
"Ethylene oxide (EO) is a direct-acting mutagen and animal carcinogen used as an industrial intermediate and sterilant with a high potential for human exposure. "	( Ethylene oxide dosimetry in the mouse. Asgharian, B; Brown, CD; Fennell, TR; Turner, MJ, 1998)	3.19
"Ethylene oxide is an alkylating agent known to be a directly acting mutagen and carcinogen. "	( Ambient and biochemical effect monitoring of workers exposed to ethylene oxide. Angerer, J; Bader, M; Krämer, A, 1998)	1.98
"Ethylene oxide is a proven genotoxic chemical, and there is lots of evidence suggesting its carcinogenic effects in humans. "	( Oncogene and suppressor gene expression as a biomarker for ethylene oxide exposure. Ember, I; Gombköto, G; Kiss, I; Müller, E; Szeremi, M, 1998)	1.99
"Ethylene oxide is a valuable and indispensable part of modern medicine and today we will discuss common sense methods and procedures for its safe use."	( Ethylene oxide--back to basics. Arnold, RE, 1987)	2.44
"Ethylene oxide (EtO) is a powerful disinfectant and sterilant for heat-sensitive surgical items and instruments. "	( Working conditions and health effects of ethylene oxide exposure at hospital sterilization sites. Akakpo, V; Frimat, P; Furon, D; Hache, JC; Sobaszek, A; Victoire, G, 1999)	2.01
"Ethylene oxide (EO) is a metabolite of ethylene, also found in cigarette smoke, and is carcinogenic in rodents."	( Hemoglobin adducts from acrylonitrile and ethylene oxide in cigarette smokers: effects of glutathione S-transferase T1-null and M1-null genotypes. Bell, DA; Fennell, TR; MacNeela, JP; Morris, RW; Thompson, CL; Watson, M, 2000)	1.29
"Ethylene oxide (EtO) is a genotoxic carcinogen with widespread uses as an industrial chemical intermediate and sterilant. "	( Hemoglobin adducts and sister chromatid exchanges in hospital workers exposed to ethylene oxide: effects of glutathione S-transferase T1 and M1 genotypes. Boeniger, MF; Connally, LB; Schulte, PA; Walker, JT; Ward, EM; Whelan, EA; Wiencke, JK; Yong, LC, 2001)	1.98
"Ethylene oxide is a gas produced in large quantities in the United States that is used primarily as a chemical intermediate in the production of ethylene glycol, propylene glycol, non-ionic surfactants, ethanolamines, glycol ethers, and other chemicals. "	( Reproductive and developmental risks from ethylene oxide: a probabilistic characterization of possible regulatory thresholds. Baird, SJ; Evans, JS; Rhomberg, LR; Williams, PL; Wilson, AM, 2001)	2.02
"Ethylene oxide is a known mutagen as indicated by short-term testing in vitro and in vivo. "	( Ethylene oxide: evidence of human chromosomal effects. Garry, VF; Gray, DG; Hozier, J; Jacobs, D; Wade, RL, 1979)	3.15
"Ethylene oxide is a gas widely used in the production of industrial chemicals. "	( [Parkinsonism secondary to ethylene oxide exposure: case report]. Barbosa, ER; Comerlatti, LR; Haddad, MS; Scaff, M, 1992)	2.02
"Ethylene oxide is a colorless gas that can cause neoplastic disease (leukemia, stomach cancer) in animals and humans. "	( Cytogenetic changes in ethylene oxide-exposed workers: a challenge to occupational medicine. Ribak, J; Shabtai, P; Shaham, J, )	1.88
"Ethylene oxide (EO) is a direct-acting SN2 alkylating agent and a rodent and probable human carcinogen. "	( In vitro reaction of ethylene oxide with DNA and characterization of DNA adducts. Li, F; Segal, A; Solomon, JJ, 1992)	2.05
"Ethylene oxide is a sterilant gas that causes leukemia and other cancers in animals. "	( Mortality among workers exposed to ethylene oxide. Greife, A; Halperin, W; Hayes, R; Hornung, R; Nowlin, S; Stayner, L; Steenland, K, 1991)	2
"Ethylene oxide (EtO) is an alkylating agent and a model direct-acting mutagen and carcinogen. "	( Biologic markers in ethylene oxide-exposed workers and controls. Andrews, L; Jeffrey, AM; Latriano, L; Mayer, J; Pero, R; Tang, D; Toor, M; Walles, S; Warburton, D; Wazneh, L, 1991)	2.05
"Ethylene oxide is a sterilizing gas for heat-sensitive materials. "	( [Toxicity of ethylene oxide on the crystalline lense in an occupational milieu. Difficulty of epidemiologic surveys of cataract]. Conso, F; Cordier, S; Deschamps, D; Festy, B; Hamard, H; Laurent, AM; Leport, M; Pouliquen, Y; Renard, G, 1990)	2.09
"Ethylene oxide is a carcinogenic compound which is also an ethylene metabolite. "	( Analysis of macromolecular ethylene oxide adducts. Bolt, HM; Föst, U; Peter, H, 1988)	2.01
"Ethylene oxide (EtO) is a potent DNA-alkylating agent which has been shown to induce sister chromatid exchanges (SCE) in the peripheral blood lymphocytes of exposed workers. "	( Persistently elevated sister chromatid exchanges in ethylene oxide-exposed primates: the role of a subpopulation of high frequency cells. Eisen, EA; Kelsey, KT; Lewis, TR; Little, JB; Lynch, DW; Wiencke, JK, 1988)	1.97
"Ethylene oxide is a classical mutagen and a carcinogen based on evidence from studies in experimental animals. "	( Mutation and enhanced virus transformation of cultured hamster cells by exposure to gaseous ethylene oxide. Anderson, TM; Christensen, CC; Conklin, PM; Hatch, GG; Langenbach, R; Nesnow, S, 1986)	1.93

Excerpt	Reference	Relevance
"Ethylene oxide (EO) has been shown to associate with increased cardiovascular risk. "	( Inverse association between blood ethylene oxide levels and obesity in the general population: NHANES 2013-2016. Cheang, I; Li, M; Li, X; Liao, S; Yao, W; Zhang, H; Zhou, Y; Zhu, Q; Zhu, X; Zuo, Z, 2022)	2.44
"Ethylene oxide (EO) has been recognized as an animal carcinogen and environmental EO exposure was linked to several diseases. "	( Sex difference in the non-linear relationship between ethylene oxide exposure and depressive symptoms: A cross-sectional study. Feng, C; Jiang, S; Li, B; Niu, X; Qiao, Y; Sun, M; Wang, L; Wang, M; Wang, Y; Xu, Y; Yang, T; Zhang, M; Zhang, W; Zhou, X, 2024)	3.13
"Ethylene oxide (EtO) has been categorized as "carcinogenic to humans (Group 1)" by the IARC. "	( Genotoxicity of ethylene oxide: A review of micronucleus assay results in human population. Ghosh, M; Godderis, L, )	1.92
"Ethylene oxide (EO) has recently been suggested to be an alternative cause, but in many cases reported in the literature, it seems that EO has not been considered as a cause."	( Anaphylaxis to ethylene oxide - a rare and overlooked phenomenon? Bache, S; Garvey, LH; Petersen, JT, 2011)	1.44
"Ethylene oxide has been shown to destroy a number of aerobic Gram-positive and Gram-negative organisms, aerobic and anaerobic spore-forming bacilli, fungi, and vaccinia virus."	( The sterilization of bacteriological media and other fluids with ethylene oxide. BRUNO, P; WILSON, AT, 1950)	1.19
"Ethylene oxide (EO) has been identified as a carcinogen in laboratory animals. "	( Addressing nonlinearity in the exposure-response relationship for a genotoxic carcinogen: cancer potency estimates for ethylene oxide. Albertini, RJ; Gargas, ML; Kirman, CR; Sielken, RL; Sweeney, LM; Teta, MJ; Valdez-Flores, C, 2004)	1.97
"Ethylene oxide has besides its toxic reaction a mutagenic effect upon human fibroblasts."	( [Mutagenic and cytotoxic effect of ethylene oxide on human cell cultures (author's transl)]. Star, EG, 1980)	1.26
"Ethylene oxide gas has been utilized as an alternative method for sterilization of dental handpieces, as it is less corrosive than steam. "	( Effectiveness of ethylene oxide for sterilization of dental handpieces. Johnson, RB; Parker, HH, 1995)	2.07
"Ethylene oxide has been used as a low-temperature sterilization technology since the 1950s."	( Choosing a low-temperature sterilization technology. , 1999)	1.02
"Ethylene oxide (EO) research has significantly increased since the 1980s, when regulatory risk assessments were last completed on the basis of the animal cancer chronic bioassays. "	( Ethylene oxide cancer risk assessment based on epidemiological data: application of revised regulatory guidelines. Sielken, RL; Teta, MJ; Valdez-Flores, C, 1999)	3.19
"Ethylene oxide has been produced by a Swedish company since the beginning of the 1940s."	( A cohort study of mortality and cancer incidence in ethylene oxide production workers. Axelson, O; Berndtsson, BS; Ehrenberg, L; Hogstedt, C; Rohlén, O, 1979)	1.23
"Ethylene oxide has been shown to be an effective mutagen in a variety of organisms ranging from bacteria to mammalian cells. "	( Review of the mutagenicity of ethylene oxide. Dellarco, VL; Fowle, JR; Generoso, WM; Jacobson-Kram, D; Sega, GA, 1990)	2.01
"Ethylene oxide sterilization has been found experimentally in animal models to damage the osteoinductive ability of bone grafts."	( The failure of ethylene oxide gas-sterilized freeze-dried bone graft for thoracic and lumbar spinal fusion. Herron, LD; Newman, MH, 1989)	1.35

Excerpt	Reference	Relevance
"(4) Ethylene oxide does not inhibit osteoinduction when correctly applied for sterilization."	( Influence of postmortem time and temperature on osteoinductive activity of demineralized microperforated ethylene oxide-sterilized syngeneic bone implant in the rat. Arenas, M; Artal, R; Gendler, E; Moore, TM, 1990)	0.97

Excerpt	Reference	Relevance
"Ethylene oxide (EO) treatment has been demonstrated as an effective method in published studies."	( Reduction of PCR-amplifiable DNA by ethylene oxide treatment of forensic consumables. Adamski, M; Alfs, K; Bastisch, I; Herdt, S; Hilken, M; Jacobs, R; Koennecke, T; Neureuther, K; Reisbacher, S; Rohmann, E; Sonntag, ML; Strain, P, 2014)	1.4
"Ethylene oxide treatment to sterile swabs and tubes did not significantly affect subsequent DNA analysis."	( Comparison of the effects of sterilisation techniques on subsequent DNA profiling. Ames, C; Bristol, N; Dagnall, K; Daniel, B; Ellis, C; Sesardić, I; Shaw, K; Whittaker, F, 2008)	1.07
"Ethylene oxide treatment is actually under discussion within the European Community, and its future restriction to herbs and spices, or even a definite ban of its application because of eventual chemical residues or reaction products, appears likely."	( [The problem of Salmonella contamination of untreated dried products in the food industry]. Bockemühl, J; Wohlers, B, 1984)	0.99
"Ethylene oxide treatment impaired the new bone ingrowth distance by 68% and reduced the scintimetric activity by 51%."	( Ethylene oxide sterilization impairs allograft incorporation in a conduction chamber. Aspenberg, P; Thorén, K, 1995)	2.46
"Ethylene oxide-treated allograft is inferior to autograft and should not be used for posterior lumbar fusions."	( A prospective analysis of autograft versus allograft in posterolateral lumbar fusion in the same patient. A minimum of 1-year follow-up in 144 patients. France, J; Jorgenson, SS; Lowe, TG; Sabin, J, 1994)	1.73
"Ethylene oxide-treated saliva also was the least favorable saliva sample to support growth of bacteria."	( Biological qualities of saliva sterilized by filtration or ethylene oxide treatment. Kalfas, S; Rundegren, J, 1991)	1.25

Excerpt	Reference	Relevance
" Thus we publish herein two items to help clarify aspects of the safe and effective use of this sterilant."	( Safe and effective use of ethylene oxide. Fredericks, RJ; Rendell-Baker, L, )	0.43
" Although initially the levels were very high, storage for four days at room temperature reduced them to a safe level."	( Ethylene oxide sterilisation--is it safe? Gillespie, EH; Jackson, JM; Owen, GR, 1979)	1.7
" It has already developed to encompass a much broader range of topics affecting the safe and effective use of technology in health care."	( Safety considerations in clinical engineering. Paasche, PE; Scott, RN, 1986)	0.27
" The obtained parameters of EO toxicometry can be used as a basis for the calculation of safe levels of residual quantities of the compound in articles for medical use."	( Physico-chemical and toxico-hygienic aspects of using ethylene oxide for the sterilization of articles for medical use. Part 2. Toxicity and risk of ethylene oxide entering the organism by non-inhalation routes. Gleiberman, SE; Kolesnikova, NI; Kopylova, LS; Lyarskii, PP; Zayeva, GN, 1986)	0.52
" Considering the viability of endothelial cells, appearance of intracellular degenerative vacuoles, and denudation of corneal Descemet's membrane as criterion for the evaluation of toxicity of different methods of sterilization, the NaOH-treated lenses were found to be the least toxic to porcine corneal endothelium."	( Toxicity of methods of implant material sterilization on corneal endothelium. Böhnke, M; Draeger, J; Singh, G; von Domarus, D, 1985)	0.27
"Certain ethylene-oxide residues in sterilized equipment can cause toxic effects in patients."	( [Mutagenic and cytotoxic effect of ethylene oxide on human cell cultures (author's transl)]. Star, EG, 1980)	0.54
" The combination of autoclave sterilization and a PU produced from a larger-molecular-weight polyol is recommended to minimize the production of potentially toxic compounds."	( The relative safety of gamma-ray, autoclave, and ethylene oxide gas sterilization of thermosetting polyurethane. Shintani, H, )	0.39
" The purpose of defatting and freeze-drying was to facilitate subsequent sterilisation by eliminating the barrier to diffusion of the gas into bone, to lower residual levels of ethylene oxide and its toxic by-products, to eliminate alloantigens and to make storage possible at room temperature."	( Preparation of bank bone using defatting, freeze-drying and sterilisation with ethylene oxide gas. Part 1. Experimental evaluation of its efficacy and safety. Kakiuchi, M; Nishimura, A; Ono, K; Shiokawa, H, 1996)	0.71
" Animals exposed to short, high exposures of EtO on day 7 of gestation were found to have more adverse effects than animals exposed to the same C x T multiple but at longer, lower exposures."	( Dose-rate effects of ethylene oxide exposure on developmental toxicity. Brain, J; Gill, J; Henessey, R; Holmes, L; Kimmel, C; Kimmel, G; Long, N; Ravi, S; Ryan, L; Skornik, W; Smith, A; Weller, E; Williams, P, 1999)	0.62
" All three compounds showed signs of toxicity, with DEB being substantially more toxic than either CEO or EB."	( In vitro genotoxicity testing of (1-chloroethenyl)oxirane, a metabolite of beta-chloroprene. Donner, EM; Gladnick, NL; Himmelstein, MW; Snyder, RD; Valentine, R, 2001)	0.31
"Pyrogenic and toxic reactions, especially in immunologically compromised patients, are among the risks associated with reuse of single-use medical devices (SUDs) with recurrent damaged surfaces."	( Safety evaluation of single-use medical devices after submission to simulated reutilization cycles. da Silva, MV; Pinto, Tde J; Ribeiro, Ade F, )	0.13
" It is suggested that the gel formulation containing sodium lauryl sulfate is safe for most tissues that could be exposed to the product under normal use."	( Subchronic (26- and 52-week) toxicity and irritation studies of a novel microbicidal gel formulation containing sodium lauryl sulfate in animal models. Bergeron, MG; Bussières, M; Laforest, G; Piret, J, 2008)	0.35
" These toxic tissue responses occur in the same anatomical regions in rodents as do the PO-induced tumors."	( Propylene oxide: genotoxicity profile of a rodent nasal carcinogen. Albertini, RJ; Sweeney, LM, 2007)	0.34
"Do materials sterilized using gamma rays become toxic when re-sterilized in ethylene oxide? This question guided the objective of this study, which was to investigate the potential cytotoxic effect of PVC sterilized by gamma radiation and re-sterilized with EO by the agar diffusion method in cell cultures."	( [Cytotoxicity of PVC tubes sterilized in ethylene oxide after gamma radiation exposure]. Cruz, AS; de Souza, RQ; Gonçalves, CR; Graziano, KU; Ikeda, TI, 2013)	0.89
" In contrast to the systematic administration of therapeutics via repeatedly intravenous injections of micelles, this implantable device has these capacities of greatly reducing the drug dose, the frequency of administration and side effect of chemotherapeutic agents while maintaining highly therapeutic efficacy against artificial solid tumors."	( An implantable active-targeting micelle-in-nanofiber device for efficient and safe cancer therapy. Guo, X; Li, L; Wang, J; Wang, Y; Yang, G; Zhou, S, 2015)	0.42
" Studies employing the inhalation route of exposure and assessing gene or chromosomal mutations and chromosomal damage in various tissues were considered the most relevant for assessing risk from EO, since these effects are likely to contribute to adverse health consequences in exposed individuals."	( Genotoxicity as a toxicologically relevant endpoint to inform risk assessment: A case study with ethylene oxide. Albertini, RJ; Gollapudi, BB; Johnson, GE; Li, AA; Reiss, R; Su, S, 2020)	0.78
" These findings reemphasize the fact that more appropriate and stricter test and regulations will be needed to assure that the abuse deterrent formulations are safe and effective under severe conditions of abuse."	( Abuse-deterrent properties and cytotoxicity of poly(ethylene oxide) after thermal tampering. Ahmad, R; Babanejad, N; Kandalam, U; Omidi, Y; Omidian, H, 2021)	0.87

Excerpt	Reference	Relevance
" By analyzing published data on ethylene oxide in man its half-life was estimated to be 42 min."	( Pharmacokinetics of ethylene in man; body burden with ethylene oxide and hydroxyethylation of hemoglobin due to endogenous and environmental ethylene. Denk, B; Ehrenberg, L; Filser, JG; Kessler, W; Törnqvist, M, 1992)	0.82
" An exploratory study was conducted by using rat brain tumor data for acrylonitrile (AN) to investigate the use of physiologically based pharmacokinetic (PBPK) modeling along with pooling of dose-response data across routes of exposure as a means for improving carcinogen risk assessment methods."	( Improving cancer dose-response characterization by using physiologically based pharmacokinetic modeling: an analysis of pooled data for acrylonitrile-induced brain tumors to assess cancer potency in the rat. Gargas, ML; Hays, SM; Kedderis, GL; Kirman, CR; Strother, DE, 2000)	0.31
" The objective of these studies was to develop physiologically based pharmacokinetic (PB-PK) models for EO to describe the exposure-tissue dose relationship in rodents and humans."	( A physiologically based pharmacokinetic model for ethylene oxide in mouse, rat, and human. Brown, CD; Fennell, TR, 2001)	0.56
"A physiologically based pharmacokinetic (PBPK) model of acrylonitrile (ACN) and cyanoethylene oxide (CEO) disposition in humans was developed and is based on human in vitro data and scaling from a rat model (G."	( Physiologically based pharmacokinetic model parameter estimation and sensitivity and variability analyses for acrylonitrile disposition in humans. Gargas, ML; Kedderis, GL; Strother, DE; Sweeney, LM, 2003)	0.54
" This group of predominantly volatile and lipophilic chemicals was selected on the basis that their kinetics have been well-studied and can be predicted in mice, rats, and humans using physiologically based pharmacokinetic (PBPK) models."	( Assessing the dose-dependency of allometric scaling performance using physiologically based pharmacokinetic modeling. Gargas, ML; Kirman, CR; Meek, ME; Sweeney, LM, 2003)	0.32

Excerpt	Reference	Relevance
" It describes uptake of ET and EO following inhalation and intraperitoneal administration, endogenous production of ET, enzyme-mediated oxidation of ET to EO, bioavailability of EO, EO metabolism, and formation of 2-hydroxyethyl adducts of hemoglobin and DNA."	( A physiological toxicokinetic model for exogenous and endogenous ethylene and ethylene oxide in rat, mouse, and human: formation of 2-hydroxyethyl adducts with hemoglobin and DNA. Baur, C; Csanády, GA; Denk, B; Filser, JG; Gargas, ML; Kessler, W; Kreuzer, PE; Pütz, C, 2000)	0.54
" Bioavailability of EO was estimated by extracting the devices and polymers in water."	( Residual ethylene oxide in medical devices and device material. Brown, SA; Hitchins, VM; Lucas, AD; Lyle, DB; McNamee, SG; Merritt, K; Woods, TO, 2003)	0.74
" The IN administration of Poloxamer 407 and TDM based formulation showed a systemic bioavailability of 29."	( Poly(ethylene oxide/propylene oxide) copolymer thermo-reversible gelling system for the enhancement of intranasal zidovudine delivery to the brain. Kim, K; Ved, PM, 2011)	0.88
" The bioavailability of CPX olamine formulated as PEO-based MBFs can thus be effectively controlled by inducing the complete dispersion and/or microsegregation and nanocrystallization of CPX olamine in the polymer matrix."	( Molecular-Level Control of Ciclopirox Olamine Release from Poly(ethylene oxide)-Based Mucoadhesive Buccal Films: Exploration of Structure-Property Relationships with Solid-State NMR. Brus, J; Gajdosova, M; Steinhart, M; Urbanova, M; Vetchy, D, 2016)	0.67
"Protein corona formed on nanomaterial surfaces play an important role in the bioavailability and cellular uptake of nanomaterials."	( Short-chained oligo(ethylene oxide)-functionalized gold nanoparticles: realization of significant protein resistance. Riley, KR; Sims, CM; Vanderah, DJ; Walker, ML; Wood, IT, 2018)	0.8
" One of them is the close relationship of drug's bioavailability with solubility, dissolution rate and permeability."	( Crystalline Ethylene Oxide and Propylene Oxide Triblock Copolymer Solid Dispersion Enhance Solubility, Stability and Promoting Time- Controllable Release of Curcumin. Alves, TFR; Chaud, MV; da Silva Pontes, K; das Neves Lopes, FCC; Junior, JMO; Komatsu, D; Rebelo, MA; Santos, C; Severino, P; Souza, JF, 2018)	0.86
"Thus, these SDs, specifically CUR:P-407 1:2 w/w, can overcome the barriers of poor bioavailability to reap many beneficial properties."	( Crystalline Ethylene Oxide and Propylene Oxide Triblock Copolymer Solid Dispersion Enhance Solubility, Stability and Promoting Time- Controllable Release of Curcumin. Alves, TFR; Chaud, MV; da Silva Pontes, K; das Neves Lopes, FCC; Junior, JMO; Komatsu, D; Rebelo, MA; Santos, C; Severino, P; Souza, JF, 2018)	0.86
"0 suggests that an increase in vaginal pH could improve TDF bioavailability at earlier time points."	( Chitosan-poly(ethylene oxide) nanofibrous mat as a vaginal platform for tenofovir disoproxyl fumarate - The effect of vaginal pH on drug carrier performance. Ciach, T; Dąbrowska, J; Krzyżowska, M; Nowicka, M; Szymańska, E; Winnicka, K; Wojasiński, M, 2022)	1.08

Excerpt	Relevance	Reference
" Dose-response relationships for 7-HEG were nonlinear in both mice and rats, with the alkylating efficiency of ETO increasing at high exposures."	( Molecular dosimetry of ethylene oxide: formation and persistence of 7-(2-hydroxyethyl)guanine in DNA following repeated exposures of rats and mice. Fennell, TR; Prevost, V; Shuker, DE; Skopek, TR; Swenberg, JA; Upton, PB; Walker, VE, 1992)	0.59
" We explore quantitative estimation of risk to humans from low exposures based on these animal data, addressing questions of tissue dosimetry for this alkylating agent, expected equivalency of doses across species, germ-cell sensitivity, and extrapolation of dose-response relationship to low exposure levels."	( Quantitative estimation of the genetic risk associated with the induction of heritable translocations at low-dose exposure: ethylene oxide as an example. Dearfield, KL; Dellarco, VL; Jacobson-Kram, D; Rhomberg, L; Siegel-Scott, C, 1990)	0.49
" Ehrenberg on dosimetry and dose-response relationships of genotoxic compounds have been centred around ethylene oxide."	( Dosimetry of ethylene oxide. Osterman-Golkar, S, 1988)	0.86
" This approach puts severe data demands on the researcher building models: extensive physiologic, biochemical and metabolic data must be available or estimable for body compartments; time-course and dose-response data must be available on the effects; and environmental exposure profiles must be available."	( Extrapolation of laboratory findings to risks from environmental exposures: male reproductive effects of ethylene oxide. Smith, TJ, 1988)	0.49
" The mean total dosage per mouse was 2110."	( [Carcinogenic activity of ethylene oxide and its reaction products 2-chloroethanol, 2-bromoethanol, ethylene glycol and diethylene glycol. III. Research on ethylene glycol and diethylene glycol for carcinogenic effects]. Dunkelberg, H, 1987)	0.57
", N-acetyl-S-(1-cyano-2-hydroxyethyl)-L-cysteine (CHEMA) and N-acetyl-S-(2-hydroxyethyl)-L-cysteine (HEMA), were isolated from the urine of rats dosed with four successive doses of oxiranecarbonitrile (glycidonitrile, GN), 5 mg/kg, a reactive metabolic intermediate of acrylonitrile (AN)."	( N-acetyl-S-(1-cyano-2-hydroxyethyl)-L-cysteine, a new urinary metabolite of acrylonitrile and oxiranecarbonitrile. Linhart, I; Novák, J; Smejkal, J, 1988)	0.27
"Characterization of the health risks associated with occupational and environmental exposure to ethylene oxide (a gaseous sterilization agent and chemical building block) is made difficult by the limited dose-response information contained in the few published epidemiologic studies available, and the absence of toxicologic data for chronic exposures in species other than the rat."	( Issues in assessing the carcinogenic hazards of ethylene oxide. Austin, SG; Sielken, RL, 1988)	0.75
" There was a dose-response relationship between exposure and the following: Continuous Performance Test and sural velocity."	( Evidence of neurologic dysfunction related to long-term ethylene oxide exposure. Becker, CE; Cavalieri, SA; Cone, JE; Estrin, WJ; Jones, JR; Wald, P, 1987)	0.52
"In the dose-response study, male mice were exposed by inhalation to ethylene oxide (EtO) for 4 consecutive days."	( Ethylene oxide dose and dose-rate effects in the mouse dominant-lethal test. Braden, PW; Cain, KT; Generoso, WM; Gosslee, DG; Hughes, LA; Sega, GA; Shelby, MD, 1986)	1.95
" The dosage (0."	( Halophilic bacteria susceptibility to peracetic acid vapor and ethylene oxide. Tasch, P; Todd, B, 1973)	0.49
" A significant dose-response relationship between SCE and EO dose was recorded up to 35 micrograms/ml, the highest dose tested."	( Ethylene oxide induced sister chromatid exchange in human lymphocytes using a membrane dosimetry system. Garry, VF; Lakatua, D; Opp, CW; Wiencke, JK, 1982)	1.71
"1 mg single dosage per mouse) once per week to groups of 100 female NMRI mice respectively."	( [Carcinogenic activity of ethylene oxide and its reaction products 2-chloroethanol, 2-bromoethanol, ethylene glycol and diethylene glycol. I. Carcinogenicity of ethylene oxide in comparison with 1,2-propylene oxide after subcutaneous administration in mic Dunkelberg, H, 1981)	0.56
" In Section 4 we show how to take advantage of Cox's "proportional hazards model" in establishing approximate dose-response relationships."	( [On the statistical analysis of long-term tests for carcinogenesis by means of the random censorship model (author's transl)]. Dunkelberg, H; Wellek, S, 1981)	0.26
" Tubes with residues of 200 to 600 ppm ethylene oxide brought about a consistent rise of the SCE ratio in the sense of a dose-response relationship."	( [Mutagenic and cytotoxic effect of ethylene oxide on human cell cultures (author's transl)]. Star, EG, 1980)	0.81
" The present paper discusses the scientific basis for a reassessment of the EPA model, providing data and hypotheses related to effective dose to the target cells and shape of the dose-response relationship at low doses, and dose rates."	( Reconsideration of the genetic risk assessment for ethylene oxide exposures. Fennell, TR; Leber, AP; Preston, RJ; Sielken, RL; Swenberg, JA, 1995)	0.54
" To the extent that the linearity hypothesis for dose-response relationships at low levels is accepted, exposure to ethene is therefore expected to lead to a risk increment."	( Is ambient ethene a cancer risk factor? Törnqvist, M, 1994)	0.29
" Control and ETO-treated conidial suspensions were used to obtain dose-response curves for inactivation as well as the overall induction of ad-3 forward mutations using a non-selective method based on pigment accumulation rather than a requirement for adenine."	( Ethylene oxide: induction of specific-locus mutations in the ad-3 region of heterokaryon 12 of Neurospora crassa and implications for genetic risk assessment of human exposure in the workplace. Brockman, HE; de Serres, FJ, 1995)	1.73
" We present simple methods for combining dose information from the study of interest with dose-response data from other epidemiologic studies or animal studies to derive plausible hypothesized effect levels."	( Resolving discrepancies among studies: the influence of dose on effect size. Hertz-Picciotto, I; Neutra, RR, 1994)	0.29
" The dose-response curves for 7-HEG in rat tissues were linear between 10 and 100 ppm ETO and increased in slope above 100 ppm."	( Molecular dosimetry of DNA and hemoglobin adducts in mice and rats exposed to ethylene oxide. Fennell, TR; MacNeela, JP; Swenberg, JA; Upton, PB; Walker, VE, 1993)	0.51
" The lack of an increased mortality for these cancer sites was further strengthened by the lack of a dose-response relation with duration of employment and latency."	( An epidemiological study of workers potentially exposed to ethylene oxide. Trent, LS; Wong, O, 1993)	0.53
" Exposure odds ratios were statistically elevated for five of these agents; dose-response evaluations for two of the agents, ethylene oxide and benzene, failed to provide additional support for a causal relationship."	( Investigation of a cluster of ten cases of Hodgkin's disease in an occupational setting. Arends, JW; Kusters, E; Ott, MG; Slangen, JM; Swaen, GM; Van Den Langenbergh, G; Zober, A, 1996)	0.5
" The pharmacokinetic data were well simulated, although CEO blood concentrations after bolus oral dosing were somewhat overestimated."	( Refinement and verification of the physiologically based dosimetry description for acrylonitrile in rats. Batra, R; Gargas, ML; Held, SD; Kedderis, GL; Teo, SK, 1996)	0.29
" After the administration of DNP-poly[A] at a dosage of 100 mg/kg of body weight three times a week over a 3-week period, RT could no longer be detected by an ultrasensitive RT-PCR assay."	( Inhibition of murine leukemia virus with poly-2'-O-(2,4-dinitrophenyl)poly[A]. Ashun, MA; Hu, Y; Kang, I; Li, CC; Wang, JH, 1996)	0.29
" The polyethylene material grade, method of sterilization, and sterilization dosage for 26 of the tibial components were determined by tracing the material lot number for each component."	( Effects of sterilization on wear in total knee arthroplasty. Paxson, RD; Tanner, MG; White, SE; Whiteside, LA, 1996)	0.29
" However, the lack of a dose-response relationship suggests that this effect may not be related to oxide exposure."	( Neurophysiological and neuropathological evaluation of primates exposed to ethylene oxide and propylene oxide. Brightwell, WS; Burg, JR; Johnson, BL; Lynch, DW; Madden, G; Russo, JM; Setzer, JV; Sprinz, H, )	0.36
"0% VC in air produced similar mutant frequencies without a clear dose-response relationship, suggesting saturation of metabolic activation."	( Mutagenicity of vinyl chloride and its reactive metabolites, chloroethylene oxide and chloroacetaldehyde, in a metabolically competent human B-lymphoblastoid line. Chiang, SY; Skopek, TR; Swenberg, JA; Weisman, WH, 1997)	0.53
" Quantification results are shown for 7HEG after calf thymus DNA and blood exposure to various doses of EO, in both cases obtaining clear dose-response relationships."	( High-performance liquid chromatography/electrospray mass spectrometry for the analysis of modified bases in DNA: 7-(2-hydroxyethyl)guanine, the major ethylene oxide-DNA adduct. De Pauw, E; Laurent, C; Leclercq, L, 1997)	0.5
" The dose-response for hprt mutant T-cells in thymus and spleen was defined in mice necropsied 2 and 8 weeks post-exposure, respectively."	( In vivo mutagenicity of ethylene oxide at the hprt locus in T-lymphocytes of B6C3F1 lacI transgenic mice following inhalation exposure. Recio, L; Sisk, SC; Upton, PB; Walker, VE; Wong, BA, 1997)	0.6
" This flat dose-response relationship is primarily the result of efficient repair of EO-induced DNA adducts in the fertilized egg, as was evident from the up to 40-fold or 240-fold increased mutant frequencies above NER- or NER+ background levels, respectively, in crosses with NER- females."	( Genotoxic effects of inhaled ethylene oxide, propylene oxide and butylene oxide on germ cells: sensitivity of genetic endpoints in relation to dose and repair status. Nivard, MJ; Vogel, EW, 1998)	0.59
" 7-HEG exhibited tissue- and species-specific dose-response relationships in EO-exposed animals."	( Molecular dosimetry of endogenous and ethylene oxide-induced N7-(2-hydroxyethyl) guanine formation in tissues of rodents. Ranasinghe, A; Swenberg, JA; Upton, PB; Walker, VE; Wu, KY, 1999)	0.57
" For mutagenesis and other genotoxicity endpoints, the dose-response reflects the molecular dose of each type of DNA adduct, cell proliferation, as well as endogenous factors that lead to mutagenesis such as the formation and repair of endogenous DNA adducts."	( DNA adducts: effects of low exposure to ethylene oxide, vinyl chloride and butadiene. Ham, A; Koc, H; Morinello, E; Ranasinghe, A; Swenberg, JA; Tretyakova, N; Upton, PB; Wu, K, 2000)	0.57
" The major objectives of this study were: (a) to determine the formation and persistence of N7-HEG adducts in liver DNA of adult male rats exposed to 0, 50, 100 and 200 ppm by inhalation (4 weeks, 5 days/week, 6 h/day) and (b) to assess dose-response relationships for Hprt gene mutations and various types of chromosomal changes in splenic lymphocytes."	( Formation of DNA adducts and induction of mutagenic effects in rats following 4 weeks inhalation exposure to ethylene oxide as a basis for cancer risk assessment. Boogaard, PJ; Ehrenberg, LG; Natarajan, AT; Tates, AD; Törnqvist, MA; van Sittert, NJ, 2000)	0.52
" Two studies with the requisite attributes of size, individual exposure estimates and follow up are the basis for dose-response modeling and added lifetime risk predictions under environmental and occupational exposure scenarios and a variety of plausible alternative assumptions."	( Ethylene oxide cancer risk assessment based on epidemiological data: application of revised regulatory guidelines. Sielken, RL; Teta, MJ; Valdez-Flores, C, 1999)	1.75
" Environmental Protection Agency (EPA) guidelines for cancer risk assessment have acknowledged the value of better use of mechanistic data and better dose-response characterization."	( Improving cancer dose-response characterization by using physiologically based pharmacokinetic modeling: an analysis of pooled data for acrylonitrile-induced brain tumors to assess cancer potency in the rat. Gargas, ML; Hays, SM; Kedderis, GL; Kirman, CR; Strother, DE, 2000)	0.31
" A positive dose-response was found between cumulative dose exposure and the absolute mean number of eosinophils."	( Hematological changes in hospital workers due to chronic exposure to low levels of ethylene oxide. Gurvich, R; Levi, Z; Ribak, J; Shaham, J; Shain, R, 2000)	0.53
" A dose-response relationship was established, indicating that the adduct formation increases with the exposure level."	( Quantitative detection of N(7)-(2-hydroxyethyl)guanine adducts in DNA using high-performance liquid chromatography/electrospray ionization tandem mass spectrometry. Chen, SH; Hung, CW; Li, CM; Liao, PC, 2001)	0.31
" A future goal is to use the kinetic rates to parameterize a physiologically based toxicokinetic model and relate the burden of toxic metabolite to the cancer dose-response observed in experimental animals."	( The metabolism of beta-chloroprene: preliminary in-vitro studies using liver microsomes. Carpenter, SC; Himmelstein, MW; Hinderliter, PM; Snow, TA; Valentine, R, 2001)	0.31
" The non-linear dose-response relationship for mutations could therefore not be explained by a reduced inhalation or increased detoxification at higher exposure levels."	( Mutagenic activity of ethylene oxide and propylene oxide under XPG proficient and deficient conditions in relation to N-7-(2-hydroxyalkyl)guanine levels in Drosophila. Czene, K; Nivard, MJ; Segerbäck, D; Vogel, EW, 2003)	0.63
" Methyl bromide showed better penetration, but was not sufficiently toxic at practical dosage levels."	( Fumigation of jute bags with ethylene oxide and methyl bromide to eradicate potato ring rot bacteria. MONRO, HA; RICHARDSON, LT, 1962)	0.53
"75 for dose-response assessments in which toxicity is attributed to the formation of a reactive metabolite from an inhaled compound."	( Assessing the dose-dependency of allometric scaling performance using physiologically based pharmacokinetic modeling. Gargas, ML; Kirman, CR; Meek, ME; Sweeney, LM, 2003)	0.32
" In support of this hypothesis, a quadratic dose-response model provided the best overall fit to the epidemiology data in the range of observation."	( Addressing nonlinearity in the exposure-response relationship for a genotoxic carcinogen: cancer potency estimates for ethylene oxide. Albertini, RJ; Gargas, ML; Kirman, CR; Sielken, RL; Sweeney, LM; Teta, MJ; Valdez-Flores, C, 2004)	0.53
" Both the dosage forms follow Higuchi model for release from formulations."	( Formulation and development of gastroretentive drug delivery system for ofloxacin. Ali, J; Ali, M; Hasan, S, 2006)	0.33
" Gamma irradiation at this dosage is therefore not in itself a sterilisation process with respect to viruses."	( Development of a bacteriophage model system to investigate virus inactivation methods used in the treatment of bone allografts. Bienek, C; Galea, G; Jones, A; Kearney, JN; Lomas, R; MacKay, L; Scott, G, 2007)	0.34
"Three-point bending test showed that the levels of maximum load of the all experimental groups were lower than that of the control group, however, only those of the 3 Co-60 irradiation groups were significantly lower than that of the control group and that Co-60 radiation lowered the level of maximum load dose-dependently; and that the levels of ultimate strength of all the all experimental groups were lower than that of the control group, however, only those of the 3 Co-60 groups were significantly lower than that of the control group and that the higher the dosage of Co-60 radiation the lower the level of ultimate strength, however, not dose-dependently."	( [Influence of sterilization treatments on continuous carbon-fiber reinforced polyolefin composite]. Chen, AM; Guan, SB; Hou, CL; Wang, JE; Zhang, W, 2007)	0.34
" We have therefore defined in vivo dose-response relationships over a concentration range relevant to human EO exposures using a dual-isotope approach."	( Dose-response relationships for N7-(2-hydroxyethyl)guanine induced by low-dose [14C]ethylene oxide: evidence for a novel mechanism of endogenous adduct formation. Britton, RG; Brown, K; Farmer, PB; Johnson, GE; Jones, DJ; Marsden, DA; Ognibene, T; Ubick, E, 2009)	0.58
" EPA's first attempt to implement an ADAF when the dose-response model had a cumulative dose metric was for ethylene oxide and that attempt (US EPA, 2006) failed to successfully follow EPA's own guidelines."	( Calculating excess risk with age-dependent adjustment factors and cumulative doses: ethylene oxide case study. Flores, CV; Sielken, RL, 2009)	0.79
" This study provides low-level chronic exposure somatic cytogenetic data generated in mice that can be used to support the shape of the tumour dose-response in rodents and humans The germ cell cytogenetic data are discussed in terms of its relevance for a threshold response for genetic effects at low exposures."	( Reciprocal translocations in somatic and germ cells of mice chronically exposed by inhalation to ethylene oxide: implications for risk assessment. Donner, EM; James, RA; Preston, RJ; Wong, BA, 2010)	0.58
" Among major subtypes, chronic lymphocytic leukemia was consistently associated with ethylene oxide exposure, related in a dose-response manner to probability, frequency, and duration of exposure, as well as to cumulative exposure and (less definitively) with exposure intensity."	( Occupational exposure to ethylene oxide and risk of lymphoma. Becker, N; Boffetta, P; Brennan, P; Cocco, P; D'Andrea, I; de Sanjosé, S; Foretova, L; Kiran, S; Kleefeld, S; Mannetje, A; Maynadié, M; Nieters, A; Satta, G; Staines, A, 2010)	0.89
" This review summarizes and evaluates the status of dose-response data for DNA adducts and mutations from recent experimental work with standard mutagenic agents and ethylene oxide and propylene oxide, and the importance for risk assessment."	( Understanding the importance of low-molecular weight (ethylene oxide- and propylene oxide-induced) DNA adducts and mutations in risk assessment: Insights from 15 years of research and collaborative discussions. Boysen, G; Brown, K; Cadet, J; Fuchs, RP; Johnson, GE; Pottenger, LH; Swenberg, JA, 2019)	0.96
" Finally, rats were dosed intraperitoneally with EO, 50 mg/kg."	( N-(2-Hydroxyethyl)-L-valyl-L-leucine in rat urine as a hydrolytic cleavage product of ethylene oxide adduct with globin. Dabrowská, L; Dušková, Š; Hanzlíková, I; Hejl, K; Linhart, I; Mráz, J, 2019)	0.74
"We review approaches for characterizing "peak" exposures in epidemiologic studies and methods for incorporating peak exposure metrics in dose-response assessments that contribute to risk assessment."	( Peak Exposures in Epidemiologic Studies and Cancer Risks: Considerations for Regulatory Risk Assessment. Checkoway, H; Dell, LD; Gentry, PR; Lees, PSJ; Mundt, KA, 2019)	0.51
"The purpose of the present investigation is to analyze the in vivo genotoxicity dose-response data of ethylene oxide (EO) and the applicability of the derived point-of-departure (PoD) values when estimating permitted daily exposure (PDE) values."	( Genotoxicity as a toxicologically relevant endpoint to inform risk assessment: A case study with ethylene oxide. Albertini, RJ; Gollapudi, BB; Johnson, GE; Li, AA; Reiss, R; Su, S, 2020)	0.99
" EPA's cancer dose-response assessment for BD was published in 2002 and was primarily based on a study on workers exposed to BD in the North American synthetic Styrene-Butadiene Rubber (SBR) Industry developed by the University of Alabama at Birmingham (UAB)."	( An updated lymphohematopoietic and bladder cancers risk evaluation for occupational and environmental exposures to 1,3-butadiene. Budinsky, R; Cagen, S; Erraguntla, N; Kirman, CR; Valdez-Flores, C, 2022)	0.72
" The association between the level of EO exposure and the risk of developing asthma was evaluated with logistic regression models and dose-response analysis curves of restricted cubic spline function."	( The association between ethylene oxide exposure and asthma risk: a population-based study. Chen, Z; Fan, L; Li, M; Li, Z; Lin, S; Shi, P; Zhang, W; Zheng, T, 2023)	1.22
" Dose-response analysis curves of restricted cubic spline function, multiple logistic regression, and subgroup analysis were used to investigate the association between HbEO and the risk of kidney stones."	( The relationship between ethylene oxide levels in hemoglobin and the prevalence of kidney stones in US adults: an exposure-response analysis from NHANES 2013-2016. Hu, H; Ni, J; Peng, B; Song, W; Wang, Y; Yang, G; Zhang, H; Zhang, Y, 2023)	1.21
" Dose-response curves from the RCS showed a nonlinear positive association between EO and kidney stones."	( Physical activity can influence the relationship between ethylene oxide and risk of kidney stones: A cross-sectional study from the NHANES 2013-2016. Chen, M; Jiang, H; Mao, W; Wang, K; Yang, B; Zhang, H; Zhou, S, 2023)	1.16
" Weighted restricted cubic spline model was applied to draw the dose-response curve."	( Sex difference in the non-linear relationship between ethylene oxide exposure and depressive symptoms: A cross-sectional study. Feng, C; Jiang, S; Li, B; Niu, X; Qiao, Y; Sun, M; Wang, L; Wang, M; Wang, Y; Xu, Y; Yang, T; Zhang, M; Zhang, W; Zhou, X, 2024)	1.69

Role	Description
mutagen	An agent that increases the frequency of mutations above the normal background level, usually by interacting directly with DNA and causing it damage, including base substitution.
mouse metabolite	Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).
allergen	A chemical compound, or part thereof, which causes the onset of an allergic reaction by interacting with any of the molecular pathways involved in an allergy.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Class	Description
saturated organic heteromonocyclic parent
oxacycle	Any organic heterocyclic compound containing at least one ring oxygen atom.
gas molecular entity	Any main group molecular entity that is gaseous at standard temperature and pressure (STP; 0degreeC and 100 kPa).
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Pathway	Proteins	Compounds
Metabolism	1496	1108
Biological oxidations	150	276
Phase I - Functionalization of compounds	69	175
Cytochrome P450 - arranged by substrate type	30	110
Xenobiotics	4	50
ethene and chloroethene degradation	5	21

Assay ID	Title	Year	Journal	Article
AID603951	In-vitro air to blood partition coefficients of the compound, logK(blood) (human/rat)	2008	European journal of medicinal chemistry, Mar, Volume: 43, Issue:3	Air to lung partition coefficients for volatile organic compounds and blood to lung partition coefficients for volatile organic compounds and drugs.
AID603952	In-vitro blood to lung partition coefficients of the compound, logP(lung) (human/rat)	2008	European journal of medicinal chemistry, Mar, Volume: 43, Issue:3	Air to lung partition coefficients for volatile organic compounds and blood to lung partition coefficients for volatile organic compounds and drugs.
AID603950	In-vitro air to lung partition coefficients of the compound, logK(lung) (human/rat)	2008	European journal of medicinal chemistry, Mar, Volume: 43, Issue:3	Air to lung partition coefficients for volatile organic compounds and blood to lung partition coefficients for volatile organic compounds and drugs.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Timeframe	Studies, This Drug (%)	All Drugs %
pre-1990	1192 (45.15)	18.7374
1990's	516 (19.55)	18.2507
2000's	454 (17.20)	29.6817
2010's	335 (12.69)	24.3611
2020's	143 (5.42)	2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Publication Type	This drug (%)	All Drugs (%)
Trials	20 (0.67%)	5.53%
Reviews	149 (5.02%)	6.00%
Case Studies	91 (3.07%)	4.05%
Observational	0 (0.00%)	0.25%
Other	2,707 (91.24%)	84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Substance	Relationship Strength	Studies	Trials	Classes	Roles
chloroacetaldehyde [no description available]	4.86	11	0	organochlorine compound
ethylene chlorohydrin Ethylene Chlorohydrin: Used as a solvent, in the manufacture of insecticides, and for treating sweet potatoes before planting. May cause nausea, vomiting, pains in head and chest, stupefaction. Irritates mucous membranes and causes kidney and liver degeneration.. chloroethanol : An organochlorine compound that is ethanol substituted by at least one chloro group.	5.81	30	0	chloroethanol	xenobiotic metabolite
2,3-diphosphoglycerate 2,3-Diphosphoglycerate: A highly anionic organic phosphate which is present in human red blood cells at about the same molar ratio as hemoglobin. It binds to deoxyhemoglobin but not the oxygenated form, therefore diminishing the oxygen affinity of hemoglobin. This is essential in enabling hemoglobin to unload oxygen in tissue capillaries. It is also an intermediate in the conversion of 3-phosphoglycerate to 2-phosphoglycerate by phosphoglycerate mutase (EC 5.4.2.1). (From Stryer Biochemistry, 4th ed, p160; Enzyme Nomenclature, 1992, p508). 2,3-bisphosphoglyceric acid : A bisphosphoglyceric acid that is glyceric acid carrying two phospho substituents at positions 2 and 3.	1.97	1	0	bisphosphoglyceric acid; tetronic acid derivative	human metabolite
aminolevulinic acid Aminolevulinic Acid: A compound produced from succinyl-CoA and GLYCINE as an intermediate in heme synthesis. It is used as a PHOTOCHEMOTHERAPY for actinic KERATOSIS.. 5-aminolevulinic acid : The simplest delta-amino acid in which the hydrogens at the gamma position are replaced by an oxo group. It is metabolised to protoporphyrin IX, a photoactive compound which accumulates in the skin. Used (in the form of the hydrochloride salt)in combination with blue light illumination for the treatment of minimally to moderately thick actinic keratosis of the face or scalp.	1.97	1	0	4-oxo monocarboxylic acid; amino acid zwitterion; delta-amino acid	antineoplastic agent; dermatologic drug; Escherichia coli metabolite; human metabolite; mouse metabolite; photosensitizing agent; plant metabolite; prodrug; Saccharomyces cerevisiae metabolite
ethylene glycol Ethylene Glycol: A colorless, odorless, viscous dihydroxy alcohol. It has a sweet taste, but is poisonous if ingested. Ethylene glycol is the most important glycol commercially available and is manufactured on a large scale in the United States. It is used as an antifreeze and coolant, in hydraulic fluids, and in the manufacture of low-freezing dynamites and resins.. ethanediol : Any diol that is ethane or substituted ethane carrying two hydroxy groups.. ethylene glycol : A 1,2-glycol compound produced via reaction of ethylene oxide with water.	3.92	13	0	ethanediol; glycol	metabolite; mouse metabolite; solvent; toxin
acetic acid Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons.	9.2	5	0	monocarboxylic acid	antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent
acetaldehyde Acetaldehyde: A colorless, flammable liquid used in the manufacture of acetic acid, perfumes, and flavors. It is also an intermediate in the metabolism of alcohol. It has a general narcotic action and also causes irritation of mucous membranes. Large doses may cause death from respiratory paralysis.. acetaldehyde : The aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke.. aldehyde : A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group.. acetyl group : A group, formally derived from acetic acid by dehydroxylation, which is fundamental to the biochemistry of all forms of life. When bound to coenzyme A, it is central to the metabolism of carbohydrates and fats.	5.47	21	0	aldehyde	carcinogenic agent; EC 3.5.1.4 (amidase) inhibitor; electron acceptor; Escherichia coli metabolite; human metabolite; mouse metabolite; mutagen; oxidising agent; Saccharomyces cerevisiae metabolite; teratogenic agent
acetone methyl ketone : A ketone of formula RC(=O)CH3 (R =/= H).	3.36	7	0	ketone body; methyl ketone; propanones; volatile organic compound	EC 3.5.1.4 (amidase) inhibitor; human metabolite; polar aprotic solvent
adenine [no description available]	9.59	8	0	6-aminopurines; purine nucleobase	Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
ammonium hydroxide azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2.	4.33	6	0	azane; gas molecular entity; mononuclear parent hydride	EC 3.5.1.4 (amidase) inhibitor; metabolite; mouse metabolite; neurotoxin; NMR chemical shift reference compound; nucleophilic reagent; refrigerant
benzene [no description available]	12.34	14	1	aromatic annulene; benzenes; volatile organic compound	carcinogenic agent; environmental contaminant; non-polar solvent
benzyl alcohol Benzyl Alcohol: A colorless liquid with a sharp burning taste and slight odor. It is used as a local anesthetic and to reduce pain associated with LIDOCAINE injection. Also, it is used in the manufacture of other benzyl compounds, as a pharmaceutic aid, and in perfumery and flavoring.. hydroxytoluene : Any member of the class of toluenes carrying one or more hydroxy substituents.. benzyl alcohol : An aromatic alcohol that consists of benzene bearing a single hydroxymethyl substituent.. aromatic alcohol : Any alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring.. aromatic primary alcohol : Any primary alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring.	2.05	1	0	benzyl alcohols	antioxidant; fragrance; metabolite; solvent
bromide Bromides: Salts of hydrobromic acid, HBr, with the bromine atom in the 1- oxidation state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	5.13	15	0	halide anion; monoatomic bromine
hydrobromic acid Hydrobromic Acid: Hydrobromic acid (HBr). A solution of hydrogen bromide gas in water.. hydrobromide : Salts formally resulting from the reaction of hydrobromic acid with an organic base.. hydrogen bromide : A diatomic molecule containing covalently bonded hydrogen and bromine atoms.	7.69	3	0	gas molecular entity; hydrogen halide; mononuclear parent hydride	mouse metabolite
carbamates [no description available]	2.68	3	0	amino-acid anion
carbon monoxide Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas.	9.52	7	0	carbon oxide; gas molecular entity; one-carbon compound	biomarker; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; human metabolite; ligand; metabolite; mitochondrial respiratory-chain inhibitor; mouse metabolite; neurotoxin; neurotransmitter; P450 inhibitor; probe; signalling molecule; vasodilator agent
formic acid formic acid: RN given refers to parent cpd. formic acid : The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects.	3.16	5	0	monocarboxylic acid	antibacterial agent; astringent; metabolite; protic solvent; solvent
carnitine [no description available]	2.06	1	0	amino-acid betaine	human metabolite; mouse metabolite
methane Methane: The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed). methane : A one-carbon compound in which the carbon is attached by single bonds to four hydrogen atoms. It is a colourless, odourless, non-toxic but flammable gas (b.p. -161degreeC).	5.42	10	0	alkane; gas molecular entity; mononuclear parent hydride; one-carbon compound	bacterial metabolite; fossil fuel; greenhouse gas
choline [no description available]	1.98	1	0	cholines	allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite
citric acid, anhydrous Citric Acid: A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability.. citric acid : A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms.	2.77	3	0	tricarboxylic acid	antimicrobial agent; chelator; food acidity regulator; fundamental metabolite
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion.	5.95	8	1	halide anion; monoatomic chlorine	cofactor; Escherichia coli metabolite; human metabolite
hydrochloric acid Hydrochloric Acid: A strong corrosive acid that is commonly used as a laboratory reagent. It is formed by dissolving hydrogen chloride in water. GASTRIC ACID is the hydrochloric acid component of GASTRIC JUICE.. hydrogen chloride : A mononuclear parent hydride consisting of covalently bonded hydrogen and chlorine atoms.	7.92	4	0	chlorine molecular entity; gas molecular entity; hydrogen halide; mononuclear parent hydride	mouse metabolite
coumarin 2H-chromen-2-one: coumarin derivative	2.08	1	0	coumarins	fluorescent dye; human metabolite; plant metabolite
salicylic acid Scalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).	2.04	1	0	monohydroxybenzoic acid	algal metabolite; antifungal agent; antiinfective agent; EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor; keratolytic drug; plant hormone; plant metabolite
octane Octanes: Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.. octane : A straight chain alkane composed of 8 carbon atoms.	2.04	1	0	alkane	xenobiotic
hydrogen sulfide Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed). hydrogen sulfide : A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen.. thiol : An organosulfur compound in which a thiol group, -SH, is attached to a carbon atom of any aliphatic or aromatic moiety.	3.06	1	0	gas molecular entity; hydracid; mononuclear parent hydride; sulfur hydride	Escherichia coli metabolite; genotoxin; metabolite; signalling molecule; toxin; vasodilator agent
1-aminocyclopropane-1-carboxylic acid 1-aminocyclopropanecarboxylic acid : A non-proteinogenic alpha-amino acid consisting of cyclopropane having amino and carboxy substituents both at the 1-position.	2.05	1	0	amino acid zwitterion; monocarboxylic acid; non-proteinogenic alpha-amino acid	ethylene releasers; plant metabolite
cytosine [no description available]	4.32	6	0	aminopyrimidine; pyrimidine nucleobase; pyrimidone	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
lactic acid Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group.	3.98	13	0	2-hydroxy monocarboxylic acid	algal metabolite; Daphnia magna metabolite
dimethyl sulfoxide Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.. dimethyl sulfoxide : A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents.	3.2	6	0	sulfoxide; volatile organic compound	alkylating agent; antidote; Escherichia coli metabolite; geroprotector; MRI contrast agent; non-narcotic analgesic; polar aprotic solvent; radical scavenger
formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy	9.2	83	0	aldehyde; one-carbon compound	allergen; carcinogenic agent; disinfectant; EC 3.5.1.4 (amidase) inhibitor; environmental contaminant; Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
formamide formimidic acid : A carboximidic acid that is formic acid in which the carbonyl oxygen is replaced by an imino group.. primary carboxamide : A carboxamide resulting from the formal condensation of a carboxylic acid with ammonia; formula RC(=O)NH2.	1.98	1	0	carboximidic acid; formamides; monocarboxylic acid amide; one-carbon compound	solvent
glycine [no description available]	8.09	5	0	alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid	EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical
glycerol Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil.	5.5	16	1	alditol; triol	algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent
glycolaldehyde [no description available]	7.38	2	0	glycolaldehydes	fundamental metabolite; human metabolite
hydrogen cyanide Hydrogen Cyanide: Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials.. hydrogen cyanide : A one-carbon compound consisting of a methine group triple bonded to a nitrogen atom	9.48	4	0	hydracid; one-carbon compound	Escherichia coli metabolite; human metabolite; poison
hydrogen carbonate Bicarbonates: Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.. hydrogencarbonate : The carbon oxoanion resulting from the removal of a proton from carbonic acid.	4.04	3	1	carbon oxoanion	cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
histamine [no description available]	1.95	1	0	aralkylamino compound; imidazoles	human metabolite; mouse metabolite; neurotransmitter
thiocyanic acid thiocyanic acid : A hydracid that is cyanic acid in which the oxygen is replaced by a sulfur atom.	2.05	1	0	hydracid; one-carbon compound; organosulfur compound	Escherichia coli metabolite
hydrogen Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.. dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond.	3.78	3	0	elemental hydrogen; elemental molecule; gas molecular entity	antioxidant; electron donor; food packaging gas; fuel; human metabolite
hydroquinone [no description available]	2.44	2	0	benzenediol; hydroquinones	antioxidant; carcinogenic agent; cofactor; Escherichia coli metabolite; human xenobiotic metabolite; mouse metabolite; skin lightening agent
iodine Iodine: A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.. diiodine : Molecule comprising two covalently bonded iodine atoms with overall zero charge..	4.29	6	0	diatomic iodine	nutrient
dihydroxyphenylalanine Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring.	2.11	1	0	hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative	human metabolite
malonic acid malonic acid : An alpha,omega-dicarboxylic acid in which the two carboxy groups are separated by a single methylene group.. dicarboxylic acid : Any carboxylic acid containing two carboxy groups.	2.25	1	0	alpha,omega-dicarboxylic acid	human metabolite
methanol Methanol: A colorless, flammable liquid used in the manufacture of FORMALDEHYDE and ACETIC ACID, in chemical synthesis, antifreeze, and as a solvent. Ingestion of methanol is toxic and may cause blindness.. primary alcohol : A primary alcohol is a compound in which a hydroxy group, -OH, is attached to a saturated carbon atom which has either three hydrogen atoms attached to it or only one other carbon atom and two hydrogen atoms attached to it.. methanol : The primary alcohol that is the simplest aliphatic alcohol, comprising a methyl and an alcohol group.	9.01	14	0	alkyl alcohol; one-carbon compound; primary alcohol; volatile organic compound	amphiprotic solvent; Escherichia coli metabolite; fuel; human metabolite; mouse metabolite; Mycoplasma genitalium metabolite
inositol Inositol: An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.. inositol : Any cyclohexane-1,2,3,4,5,6-hexol.. 1D-chiro-inositol : Belonging to the inositol family of compounds, D-chiro-inositol (DCI) is an isomer of glucose. It is an important secondary messenger in insulin signal transduction.. muco-inositol : An inositol that is cyclohexane-1,2,3,4,5,6-hexol having a (1R,2R,3r,4R,5S,6r)-configuration.	8.54	2	0	cyclitol; hexol
acetanilide acetanilide: a phenylacetamide; use ACETANILIDES for the plural group meaning of the singular term. N-phenylacetamide : A member of the class of acetamides that is acetamide in which one of the hydrogens attached to the nitrogen is substituted by a phenyl group.	1.93	1	0	acetamides; anilide	analgesic
nickel Nickel: A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.. nickel ion : A nickel atom having a net electric charge.. nickel atom : Chemical element (nickel group element atom) with atomic number 28.	3.11	5	0	metal allergen; nickel group element atom	epitope; micronutrient
niacinamide nicotinamide : A pyridinecarboxamide that is pyridine in which the hydrogen at position 3 is replaced by a carboxamide group.	1.93	1	0	pyridine alkaloid; pyridinecarboxamide; vitamin B3	anti-inflammatory agent; antioxidant; cofactor; EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor; EC 3.5.1.98 (histone deacetylase) inhibitor; Escherichia coli metabolite; geroprotector; human urinary metabolite; metabolite; mouse metabolite; neuroprotective agent; Saccharomyces cerevisiae metabolite; Sir2 inhibitor
niacin Niacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.. vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).. nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.	7.34	2	0	pyridine alkaloid; pyridinemonocarboxylic acid; vitamin B3	antidote; antilipemic drug; EC 3.5.1.19 (nicotinamidase) inhibitor; Escherichia coli metabolite; human urinary metabolite; metabolite; mouse metabolite; plant metabolite; vasodilator agent
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.	2.02	1	0	monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species
nitrous oxide Nitrous Oxide: Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.. dinitrogen oxide : A nitrogen oxide consisting of linear unsymmetrical molecules with formula N2O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its solubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream.	5.19	9	0	gas molecular entity; nitrogen oxide	analgesic; bacterial metabolite; food packaging gas; food propellant; general anaesthetic; greenhouse gas; inhalation anaesthetic; NMDA receptor antagonist; raising agent; refrigerant; vasodilator agent
hydroxide ion [no description available]	2.74	3	0	oxygen hydride	mouse metabolite
phenol [no description available]	3.17	1	0	phenols	antiseptic drug; disinfectant; human xenobiotic metabolite; mouse metabolite
phosphoric acid phosphoric acid: concise etchant is 37% H3PO4. phosphoric acid : A phosphorus oxoacid that consists of one oxo and three hydroxy groups joined covalently to a central phosphorus atom.	2.08	1	0	phosphoric acids	algal metabolite; fertilizer; human metabolite; NMR chemical shift reference compound; solvent
phthalic acid phthalic acid: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7178. phthalic acid : A benzenedicarboxylic acid cosisting of two carboxy groups at ortho positions.	3.76	3	0	benzenedicarboxylic acid	human xenobiotic metabolite
1-propanol 1-Propanol: A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.. propan-1-ol : The parent member of the class of propan-1-ols that is propane in which a hydrogen of one of the methyl groups is replaced by a hydroxy group.	2.87	4	0	propan-1-ols; short-chain primary fatty alcohol	metabolite; protic solvent
purine 1H-purine : The 1H-tautomer of purine.. 3H-purine : The 3H-tautomer of purine.. 9H-purine : The 9H-tautomer of purine.. 7H-purine : The 7H-tautomer of purine.	7.38	2	0	purine
thiosulfates Thiosulfates: Inorganic salts of thiosulfuric acid possessing the general formula R2S2O3.. thiosulfate(2-) : A divalent inorganic anion obtained by removal of both protons from thiosulfuric acid.	1.97	1	0	divalent inorganic anion; sulfur oxide; sulfur oxoanion	human metabolite
sulfites Sulfites: Inorganic salts of sulfurous acid.. sulfites : Any sulfurous acid derivative that is a salt or an ester of sulfurous acid.. organosulfonate oxoanion : An organic anion obtained by deprotonation of the sufonate group(s) of any organosulfonic acid.. sulfite : A sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3).	3.04	1	0	divalent inorganic anion; sulfur oxide; sulfur oxoanion
succinic acid Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle.	2.1	1	0	alpha,omega-dicarboxylic acid; C4-dicarboxylic acid	anti-ulcer drug; fundamental metabolite; micronutrient; nutraceutical; radiation protective agent
sulfuric acid sulfuric acid : A sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom.	3.82	3	0	sulfur oxoacid	catalyst
sulfur dioxide Sulfur Dioxide: A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant.	3.05	1	0	sulfur oxide	Escherichia coli metabolite; food bleaching agent; refrigerant
thymine [no description available]	2.17	1	0	pyrimidine nucleobase; pyrimidone	Escherichia coli metabolite; human metabolite; mouse metabolite
toluene methylbenzene : Any alkylbenzene that is benzene substituted with one or more methyl groups.	4.32	6	0	methylbenzene; toluenes; volatile organic compound	cholinergic antagonist; fuel additive; neurotoxin; non-polar solvent
uric acid Uric Acid: An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.. uric acid : An oxopurine that is the final oxidation product of purine metabolism.. 6-hydroxy-1H-purine-2,8(7H,9H)-dione : A tautomer of uric acid having oxo groups at C-2 and C-8 and a hydroxy group at C-6.. 7,9-dihydro-1H-purine-2,6,8(3H)-trione : An oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8.	4.03	3	1	uric acid	Escherichia coli metabolite; human metabolite; mouse metabolite
urea pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives.	5.97	8	1	isourea; monocarboxylic acid amide; one-carbon compound	Daphnia magna metabolite; Escherichia coli metabolite; fertilizer; flour treatment agent; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
1,2-dimethylhydrazine 1,2-Dimethylhydrazine: A DNA alkylating agent that has been shown to be a potent carcinogen and is widely used to induce colon tumors in experimental animals.. 1,2-dimethylhydrazine : A member of the class of hydrazines that is hydrazine in which one of the hydrogens attached to each nitrogen is replaced by a methyl group. A powerful DNA alkylating agent and carcinogen, it is used to induce colon cancer in laboratory rats and mice.	1.93	1	0	hydrazines	alkylating agent; carcinogenic agent
1-anilino-8-naphthalenesulfonate 1-anilino-8-naphthalenesulfonate: RN given refers to parent cpd. 8-anilinonaphthalene-1-sulfonic acid : A naphthalenesulfonic acid that is naphthalene-1-sulfonic acid substituted by a phenylamino group at position 8.	3.04	4	0	aminonaphthalene; naphthalenesulfonic acid	fluorescent probe
2,4-dichlorophenoxyacetic acid 2,4-Dichlorophenoxyacetic Acid: An herbicide with irritant effects on the eye and the gastrointestinal system.. 2,4-D : A chlorophenoxyacetic acid that is phenoxyacetic acid in which the ring hydrogens at postions 2 and 4 are substituted by chlorines.	2.01	1	0	chlorophenoxyacetic acid; dichlorobenzene	agrochemical; defoliant; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; environmental contaminant; phenoxy herbicide; synthetic auxin
mercaptoethanol Mercaptoethanol: A water-soluble thiol derived from hydrogen sulfide and ethanol. It is used as a reducing agent for disulfide bonds and to protect sulfhydryl groups from oxidation.	2.39	2	0	alkanethiol; primary alcohol	geroprotector
amitrole Amitrole: A non-selective post-emergence, translocated herbicide. According to the Seventh Annual Report on Carcinogens (PB95-109781, 1994) this substance may reasonably be anticipated to be a carcinogen. (From Merck Index, 12th ed) It is an irreversible inhibitor of CATALASE, and thus impairs activity of peroxisomes.. amitrole : A member of the class of triazoles that is 1H-1,2,4-triazole substituted by an amino group at position 3. Used to control annual grasses and aquatic weeds (but not on food crops because it causes cancer in laboratory animals). Its use within the EU was banned from September 2017 on the grounds of potential groundwater contamination and risks to aquatic life; there have also been concerns about its endocrine-disrupting properties.	3.05	1	0	aromatic amine; triazoles	carotenoid biosynthesis inhibitor; EC 1.11.1.6 (catalase) inhibitor; herbicide
phenytoin [no description available]	2.04	1	0	imidazolidine-2,4-dione	anticonvulsant; drug allergen; sodium channel blocker; teratogenic agent
acebutolol Acebutolol: A cardioselective beta-1 adrenergic antagonist with little effect on the bronchial receptors. The drug has stabilizing and quinidine-like effects on cardiac rhythm, as well as weak inherent sympathomimetic action.. acebutolol : An ether that is the 2-acetyl-4-(butanoylamino)phenyl ether of the primary hydroxy group of 3-(propan-2-ylamino)propane-1,2-diol.	2.04	1	0	aromatic amide; ethanolamines; ether; monocarboxylic acid amide; propanolamine; secondary amino compound	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; sympathomimetic agent
alprazolam Alprazolam: A triazolobenzodiazepine compound with antianxiety and sedative-hypnotic actions, that is efficacious in the treatment of PANIC DISORDERS, with or without AGORAPHOBIA, and in generalized ANXIETY DISORDERS. (From AMA Drug Evaluations Annual, 1994, p238). alprazolam : A member of the class of triazolobenzodiazepines that is 4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine carrying methyl, phenyl and chloro substituents at positions 1, 6 and 8 respectively. Alprazolam is only found in individuals that have taken this drug.	2.04	1	0	organochlorine compound; triazolobenzodiazepine	anticonvulsant; anxiolytic drug; GABA agonist; muscle relaxant; sedative; xenobiotic
theophylline [no description available]	2.04	1	0	dimethylxanthine	adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent
aspirin Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5). acetylsalicylate : A benzoate that is the conjugate base of acetylsalicylic acid, arising from deprotonation of the carboxy group.. acetylsalicylic acid : A member of the class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group. A non-steroidal anti-inflammatory drug with cyclooxygenase inhibitor activity.	3.76	3	0	benzoic acids; phenyl acetates; salicylates	anticoagulant; antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; EC 1.1.1.188 (prostaglandin-F synthase) inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; plant activator; platelet aggregation inhibitor; prostaglandin antagonist; teratogenic agent
atenolol Atenolol: A cardioselective beta-1 adrenergic blocker possessing properties and potency similar to PROPRANOLOL, but without a negative inotropic effect.. atenolol : An ethanolamine compound having a (4-carbamoylmethylphenoxy)methyl group at the 1-position and an N-isopropyl substituent.	2.04	1	0	ethanolamines; monocarboxylic acid amide; propanolamine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; sympatholytic agent; xenobiotic
azobenzene azobenzene: photosensor molecule known to undergo reversible isomerization from trans to cis on illumination with photons of appropriate wavelength; RN given refers to cpd without isomeric designation; structure. (E)-azobenzene : The (E)-isomer of azobenzene.. (Z)-azobenzene : The (Z)-isomer of azobenzene.. azobenzene : A molecule whose structure comprises two phenyl rings linked by a N=N double bond; the parent compound of the azobenzene class of compounds.	7.57	2	0	azobenzenes
2,2-bis(4-glycidyloxyphenyl)propane 2,2-bis(4-glycidyloxyphenyl)propane: structure	2.7	3	0	diarylmethane
barbital 5,5-diethylbarbituric acid : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by two ethyl groups. Formerly used as a hypnotic (sleeping aid).	2.04	1	0	barbiturates	drug allergen
benzethonium Benzethonium: Bactericidal cationic quaternary ammonium surfactant used as a topical anti-infective agent. It is an ingredient in medicaments, deodorants, mouthwashes, etc., and is used to disinfect apparatus, etc., in the food processing and pharmaceutical industries, in surgery, and also as a preservative. The compound is toxic orally as a result of neuromuscular blockade.	2.03	1	0	alkylbenzene
benzo(a)pyrene Benzo(a)pyrene: A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke.. benzo[a]pyrene : An ortho- and peri-fused polycyclic arene consisting of five fused benzene rings.	2.37	2	0	ortho- and peri-fused polycyclic arene	carcinogenic agent; mouse metabolite
benzocaine Benzocaine: A surface anesthetic that acts by preventing transmission of impulses along NERVE FIBERS and at NERVE ENDINGS.. dextran sulfate sodium : An organic sodium salt of dextran sulfate. It induces colitis in mice.. benzocaine : A benzoate ester having 4-aminobenzoic acid as the acid component and ethanol as the alcohol component. A surface anaesthetic, it is used to suppress the gag reflex, and as a lubricant and topical anaesthetic on the larynx, mouth, nasal cavity, respiratory tract, oesophagus, rectum, urinary tract, and vagina.	1.98	1	0	benzoate ester; substituted aniline	allergen; antipruritic drug; sensitiser; topical anaesthetic
propiolactone Propiolactone: Disinfectant used in vapor form to sterilize vaccines, grafts, etc. The vapor is very irritating and the liquid form is carcinogenic.	8.57	9	0	propan-3-olide
betaxolol [no description available]	2.04	1	0	propanolamine	antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
biperiden Biperiden: A muscarinic antagonist that has effects in both the central and peripheral nervous systems. It has been used in the treatment of arteriosclerotic, idiopathic, and postencephalitic parkinsonism. It has also been used to alleviate extrapyramidal symptoms induced by phenothiazine derivatives and reserpine.. biperiden : A member of the class of piperidines that is N-propylpiperidine in which the methyl hydrogens have been replaced by hydroxy, phenyl, and 5-norbornen-2-yl groups. A muscarinic antagonist affecting both the central and peripheral nervous systems, it is used in the treatment of all forms of Parkinson's disease.	2.04	1	0	piperidines; tertiary alcohol; tertiary amino compound	antidote to sarin poisoning; antidyskinesia agent; antiparkinson drug; muscarinic antagonist; parasympatholytic
bisoprolol Bisoprolol: A cardioselective beta-1 adrenergic blocker. It is effective in the management of HYPERTENSION and ANGINA PECTORIS.	2.04	1	0	secondary alcohol; secondary amine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
busulfan [no description available]	2.03	1	0	methanesulfonate ester	alkylating agent; antineoplastic agent; carcinogenic agent; insect sterilant; teratogenic agent
verapamil Verapamil: A calcium channel blocker that is a class IV anti-arrhythmia agent.. verapamil : A racemate comprising equimolar amounts of dexverapamil and (S)-verapamil. An L-type calcium channel blocker of the phenylalkylamine class, it is used (particularly as the hydrochloride salt) in the treatment of hypertension, angina pectoris and cardiac arrhythmia, and as a preventive medication for migraine.. 2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(propan-2-yl)pentanenitrile : A tertiary amino compound that is 3,4-dimethoxyphenylethylamine in which the hydrogens attached to the nitrogen are replaced by a methyl group and a 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl group.	2.04	1	0	aromatic ether; nitrile; polyether; tertiary amino compound
camphor, (+-)-isomer [no description available]	1.95	1	0	bornane monoterpenoid; cyclic monoterpene ketone	plant metabolite
carbamazepine Carbamazepine: A dibenzazepine that acts as a sodium channel blocker. It is used as an anticonvulsant for the treatment of grand mal and psychomotor or focal SEIZURES. It may also be used in the management of BIPOLAR DISORDER, and has analgesic properties.. carbamazepine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine carrying a carbamoyl substituent at the azepine nitrogen, used as an anticonvulsant.	2.04	1	0	dibenzoazepine; ureas	analgesic; anticonvulsant; antimanic drug; drug allergen; EC 3.5.1.98 (histone deacetylase) inhibitor; environmental contaminant; glutamate transporter activator; mitogen; non-narcotic analgesic; sodium channel blocker; xenobiotic
chlorpromazine Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.. chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety.	2.43	2	0	organochlorine compound; phenothiazines; tertiary amine	anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug
ciclopirox [no description available]	7.13	1	0	cyclic hydroxamic acid; hydroxypyridone antifungal drug; pyridone	antibacterial agent; antiseborrheic
ciprofloxacin Ciprofloxacin: A broad-spectrum antimicrobial carboxyfluoroquinoline.. ciprofloxacin : A quinolone that is quinolin-4(1H)-one bearing cyclopropyl, carboxylic acid, fluoro and piperazin-1-yl substituents at positions 1, 3, 6 and 7, respectively.	2.11	1	0	aminoquinoline; cyclopropanes; fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone; zwitterion	antibacterial drug; antiinfective agent; antimicrobial agent; DNA synthesis inhibitor; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; environmental contaminant; topoisomerase IV inhibitor; xenobiotic
clomipramine Clomipramine: A tricyclic antidepressant similar to IMIPRAMINE that selectively inhibits the uptake of serotonin in the brain. It is readily absorbed from the gastrointestinal tract and demethylated in the liver to form its primary active metabolite, desmethylclomipramine.. clomipramine : A dibenzoazepine that is 10,11-dihydro-5H-dibenzo[b,f]azepine which is substituted by chlorine at position 3 and in which the hydrogen attached to the nitrogen is replaced by a 3-(dimethylamino)propyl group. One of the more sedating tricyclic antidepressants, it is used as the hydrochloride salt for the treatment of depression as well as obsessive-compulsive disorder and phobias.	2.04	1	0	dibenzoazepine	anticoronaviral agent; antidepressant; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; serotonergic antagonist; serotonergic drug; serotonin uptake inhibitor
clotiazepam clotiazepam: was heading 1975-94 (see under AZEPINES 1978-90; was Y 6047 see under AZEPINES 1975-77); Y 6047 was see CLOTIAZEPAM 1978-94; use AZEPINES to search CLOTIAZEPAM 1975-94; thienodiazepine derivative with actions similar to those of benzodiazepines	2.04	1	0	organic molecular entity
cystamine [no description available]	2.02	1	0	organic disulfide; primary amino compound	EC 2.3.2.13 (protein-glutamine gamma-glutamyltransferase) inhibitor
diazepam Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5.	2.04	1	0	1,4-benzodiazepinone; organochlorine compound	anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic
diazinon Diazinon: A cholinesterase inhibitor that is used as an organothiophosphorus insecticide.. diazinon : A member of the class of pyrimidines that is pyrimidine carrying an isopropyl group at position 2, a methyl group at position 6 and a (diethoxyphosphorothioyl)oxy group at position 4.	1.95	1	0	organic thiophosphate; pyrimidines	acaricide; agrochemical; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; environmental contaminant; nematicide; xenobiotic
ddt 1,1-bis(p-chlorophenyl)-2,2,2-trichloroethane: structure in first source	1.95	1	0	benzenoid aromatic compound; chlorophenylethane; monochlorobenzenes; organochlorine insecticide	bridged diphenyl acaricide; carcinogenic agent; endocrine disruptor; persistent organic pollutant
dichlorvos Dichlorvos: An organophosphorus insecticide that inhibits ACETYLCHOLINESTERASE.. dichlorvos : An alkenyl phosphate that is the 2,2-dichloroethenyl ester of dimethyl phosphate.	3.96	2	0	alkenyl phosphate; dialkyl phosphate; organochlorine acaricide; organophosphate insecticide	anthelminthic drug; antibacterial agent; antifungal agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor
benzophenone benzophenone : The simplest member of the class of benzophenones, being formaldehyde in which both hydrogens are replaced by phenyl groups.	2.05	1	0	benzophenones	photosensitizing agent; plant metabolite
disulfiram [no description available]	7.41	1	0	organic disulfide; organosulfur acaricide	angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; EC 3.1.1.1 (carboxylesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 5.99.1.2 (DNA topoisomerase) inhibitor; ferroptosis inducer; fungicide; NF-kappaB inhibitor
valproic acid Valproic Acid: A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.. valproic acid : A branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem.	2.04	1	0	branched-chain fatty acid; branched-chain saturated fatty acid	anticonvulsant; antimanic drug; EC 3.5.1.98 (histone deacetylase) inhibitor; GABA agent; neuroprotective agent; psychotropic drug; teratogenic agent
enflurane Enflurane: An extremely stable inhalation anesthetic that allows rapid adjustments of anesthesia depth with little change in pulse or respiratory rate.. enflurane : An ether in which the oxygen atom is connected to 2-chloro-1,1,2-trifluoroethyl and difluoromethyl groups.	2.04	1	0	ether; organochlorine compound; organofluorine compound	anaesthetic
erythrosine Fluoresceins: A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays.	2.01	1	0
ethenzamide ethenzamide: structure	2.04	1	0	organic molecular entity
ether Ether: A mobile, very volatile, highly flammable liquid used as an inhalation anesthetic and as a solvent for waxes, fats, oils, perfumes, alkaloids, and gums. It is mildly irritating to skin and mucous membranes.. ether : An organooxygen compound with formula ROR, where R is not hydrogen.. diethyl ether : An ether in which the oxygen atom is linked to two ethyl groups.	3.08	5	0	ether; volatile organic compound	inhalation anaesthetic; non-polar solvent; refrigerant
ethoxyquin Ethoxyquin: Antioxidant; also a post-harvest dip to prevent scald on apples and pears.. ethoxyquin : A quinoline that is 1,2-dihydroquinoline bearing three methyl substituents at position 2, 2 and 4 as well as an ethoxy substituent at position 6.	3.05	1	0	aromatic ether; quinolines	antifungal agrochemical; food antioxidant; genotoxin; geroprotector; herbicide; Hsp90 inhibitor; neuroprotective agent; UDP-glucuronosyltransferase activator
fenofibrate Pharmavit: a polyvitamin product, comprising vitamins A, D2, B1, B2, B6, C, E, nicotinamide, & calcium pantothene; may be a promising agent for application to human populations exposed to carcinogenic and genetic hazards of ionizing radiation; RN from CHEMLINE	2.17	1	0	aromatic ether; chlorobenzophenone; isopropyl ester; monochlorobenzenes	antilipemic drug; environmental contaminant; geroprotector; xenobiotic
fentanyl Fentanyl: A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1078). fentanyl : A monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1-(2-phenylethyl)piperidin-4-amine with propanoic acid.	2.04	1	0	anilide; monocarboxylic acid amide; piperidines	adjuvant; anaesthesia adjuvant; anaesthetic; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
flufenamic acid Flufenamic Acid: An anthranilic acid derivative with analgesic, anti-inflammatory, and antipyretic properties. It is used in musculoskeletal and joint disorders and administered by mouth and topically. (From Martindale, The Extra Pharmacopoeia, 30th ed, p16). flufenamic acid : An aromatic amino acid consisting of anthranilic acid carrying an N-(trifluoromethyl)phenyl substituent. An analgesic and anti-inflammatory, it is used in rheumatic disorders.	1.96	1	0	aromatic amino acid; organofluorine compound	antipyretic; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
fluorouracil Fluorouracil: A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid.. 5-fluorouracil : A nucleobase analogue that is uracil in which the hydrogen at position 5 is replaced by fluorine. It is an antineoplastic agent which acts as an antimetabolite - following conversion to the active deoxynucleotide, it inhibits DNA synthesis (by blocking the conversion of deoxyuridylic acid to thymidylic acid by the cellular enzyme thymidylate synthetase) and so slows tumour growth.	6.98	1	0	nucleobase analogue; organofluorine compound	antimetabolite; antineoplastic agent; environmental contaminant; immunosuppressive agent; radiosensitizing agent; xenobiotic
fluoxetine Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.. fluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder.. N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group.	2.04	1	0	(trifluoromethyl)benzenes; aromatic ether; secondary amino compound
furosemide Furosemide: A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.. furosemide : A chlorobenzoic acid that is 4-chlorobenzoic acid substituted by a (furan-2-ylmethyl)amino and a sulfamoyl group at position 2 and 5 respectively. It is a diuretic used in the treatment of congestive heart failure.	2.07	1	0	chlorobenzoic acid; furans; sulfonamide	environmental contaminant; loop diuretic; xenobiotic
gentamicin Gentamicins: A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS.	2.68	3	0
glutaral Glutaral: One of the protein CROSS-LINKING REAGENTS that is used as a disinfectant for sterilization of heat-sensitive equipment and as a laboratory reagent, especially as a fixative.. glutaraldehyde : A dialdehyde comprised of pentane with aldehyde functions at C-1 and C-5.	8.81	37	2	dialdehyde	cross-linking reagent; disinfectant; fixative
glyphosate glyphosate: active cpd in herbicidal formulation Roundup; inhibits EC 2.5.1.19, 5-enolpyruvylshikimate-3-phosphate synthase; structure. glyphosate : A phosphonic acid resulting from the formal oxidative coupling of the methyl group of methylphosphonic acid with the amino group of glycine. It is one of the most commonly used herbicides worldwide, and the only one to target the enzyme 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS).	2.43	2	0	glycine derivative; phosphonic acid	agrochemical; EC 2.5.1.19 (3-phosphoshikimate 1-carboxyvinyltransferase) inhibitor; herbicide
haloperidol Haloperidol: A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279). haloperidol : A compound composed of a central piperidine structure with hydroxy and p-chlorophenyl substituents at position 4 and an N-linked p-fluorobutyrophenone moiety.	3.1	5	0	aromatic ketone; hydroxypiperidine; monochlorobenzenes; organofluorine compound; tertiary alcohol	antidyskinesia agent; antiemetic; dopaminergic antagonist; first generation antipsychotic; serotonergic antagonist
halothane [no description available]	3.78	3	0	haloalkane; organobromine compound; organochlorine compound; organofluorine compound	inhalation anaesthetic
hexachlorophene Hexachlorophene: A chlorinated bisphenol antiseptic with a bacteriostatic action against Gram-positive organisms, but much less effective against Gram-negative organisms. It is mainly used in soaps and creams and is an ingredient of various preparations used for skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p797). hexachlorophene : An organochlorine compound that is diphenylmethane in which each of the phenyl groups is substituted by chlorines at positions 2, 3, and 5, and by a hydroxy group at position 6. An antiseptic that is effective against Gram-positive organisms, it is used in soaps and creams for the treatment of various skin disorders. It is also used in agriculture as an acaricide and fungicide, but is not approved for such use within the European Union.	4.26	4	1	bridged diphenyl fungicide; polyphenol; trichlorobenzene	acaricide; antibacterial agent; antifungal agrochemical; antiseptic drug
hexobarbital Hexobarbital: A barbiturate that is effective as a hypnotic and sedative.. hexobarbital : A member of the class of barbiturates taht is barbituric acid substituted at N-1 by methyl and at C-5 by methyl and cyclohex-1-enyl groups.	2.36	2	0	barbiturates
hydroxyurea [no description available]	1.96	1	0	one-carbon compound; ureas	antimetabolite; antimitotic; antineoplastic agent; DNA synthesis inhibitor; EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor; genotoxin; immunomodulator; radical scavenger; teratogenic agent
hydroxyzine Hydroxyzine: A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.. hydroxyzine : A N-alkylpiperazine that is piperzine in which the nitrogens atoms are substituted by 2-(2-hydroxyethoxy)ethyl and (4-chlorophenyl)(phenyl)methyl groups respectively.	2.04	1	0	hydroxyether; monochlorobenzenes; N-alkylpiperazine	anticoronaviral agent; antipruritic drug; anxiolytic drug; dermatologic drug; H1-receptor antagonist
ibuprofen Midol: combination of cinnamedrine, phenacetin, aspirin & caffeine	2.51	2	0	monocarboxylic acid	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; environmental contaminant; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; radical scavenger; xenobiotic
lidocaine Lidocaine: A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.. lidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline.	2.04	1	0	benzenes; monocarboxylic acid amide; tertiary amino compound	anti-arrhythmia drug; drug allergen; environmental contaminant; local anaesthetic; xenobiotic
imipramine Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.. imipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom.	2.04	1	0	dibenzoazepine	adrenergic uptake inhibitor; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
indomethacin Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.. indometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.	7.7	3	0	aromatic ether; indole-3-acetic acids; monochlorobenzenes; N-acylindole	analgesic; drug metabolite; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; gout suppressant; non-steroidal anti-inflammatory drug; xenobiotic metabolite; xenobiotic
isoflurane Isoflurane: A stable, non-explosive inhalation anesthetic, relatively free from significant side effects.	3.56	2	0	organofluorine compound	inhalation anaesthetic
2-propanol 2-Propanol: An isomer of 1-PROPANOL. It is a colorless liquid having disinfectant properties. It is used in the manufacture of acetone and its derivatives and as a solvent. Topically, it is used as an antiseptic.. propan-2-ol : A secondary alcohol that is propane in which one of the hydrogens attached to the central carbon is substituted by a hydroxy group.	3.12	5	0	secondary alcohol; secondary fatty alcohol	protic solvent
isoproterenol Isoproterenol: Isopropyl analog of EPINEPHRINE; beta-sympathomimetic that acts on the heart, bronchi, skeletal muscle, alimentary tract, etc. It is used mainly as bronchodilator and heart stimulant.. isoprenaline : A secondary amino compound that is noradrenaline in which one of the hydrogens attached to the nitrogen is replaced by an isopropyl group. A sympathomimetic acting almost exclusively on beta-adrenergic receptors, it is used (mainly as the hydrochloride salt) as a bronghodilator and heart stimulant for the management of a variety of cardiac disorders.	1.94	1	0	catechols; secondary alcohol; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; sympathomimetic agent
ketoprofen Ketoprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It is used in the treatment of rheumatoid arthritis and osteoarthritis.. ketoprofen : An oxo monocarboxylic acid that consists of propionic acid substituted by a 3-benzoylphenyl group at position 2.	2.03	1	0	benzophenones; oxo monocarboxylic acid	antipyretic; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-steroidal anti-inflammatory drug; xenobiotic
lorazepam Lorazepam: A benzodiazepine used as an anti-anxiety agent with few side effects. It also has hypnotic, anticonvulsant, and considerable sedative properties and has been proposed as a preanesthetic agent.	2.04	1	0	benzodiazepine
mechlorethamine nitrogen mustard : Compounds having two beta-haloalkyl groups bound to a nitrogen atom, as in (X-CH2-CH2)2NR.	2.34	2	0	nitrogen mustard; organochlorine compound	alkylating agent
methenamine Methenamine: An anti-infective agent most commonly used in the treatment of urinary tract infections. Its anti-infective action derives from the slow release of formaldehyde by hydrolysis at acidic pH. (From Martindale, The Extra Pharmacopoeia, 30th ed, p173). hexamethylenetetramine : A polycyclic cage that is adamantane in which the carbon atoms at positions 1, 3, 5 and 7 are replaced by nitrogen atoms.	1.95	1	0	polyazaalkane; polycyclic cage; tetramine	antibacterial drug
methoxyflurane Methoxyflurane: An inhalation anesthetic. Currently, methoxyflurane is rarely used for surgical, obstetric, or dental anesthesia. If so employed, it should be administered with NITROUS OXIDE to achieve a relatively light level of anesthesia, and a neuromuscular blocking agent given concurrently to obtain the desired degree of muscular relaxation. (From AMA Drug Evaluations Annual, 1994, p180). methoxyflurane : An ether in which the two groups attached to the central oxygen atom are methyl and 2,2-dichloro-1,1-difluoroethyl.	2.37	2	0	ether; organochlorine compound; organofluorine compound	hepatotoxic agent; inhalation anaesthetic; nephrotoxic agent; non-narcotic analgesic
methyl methanesulfonate [no description available]	3.07	5	0	methanesulfonate ester	alkylating agent; apoptosis inducer; carcinogenic agent; genotoxin; mutagen
methylphenidate Methylphenidate: A central nervous system stimulant used most commonly in the treatment of ATTENTION DEFICIT DISORDER in children and for NARCOLEPSY. Its mechanisms appear to be similar to those of DEXTROAMPHETAMINE. The d-isomer of this drug is referred to as DEXMETHYLPHENIDATE HYDROCHLORIDE.. methylphenidate : A racemate comprising equimolar amounts of the two threo isomers of methyl phenyl(piperidin-2-yl)acetate. A central stimulant and indirect-acting sympathomimetic, is used (generally as the hydrochloride salt) in the treatment of hyperactivity disorders in children and for the treatment of narcolepsy.. methyl phenyl(piperidin-2-yl)acetate : A amino acid ester that is methyl phenylacetate in which one of the hydrogens alpha to the carbonyl group is replaced by a piperidin-2-yl group.	2.04	1	0	beta-amino acid ester; methyl ester; piperidines
metoprolol Metoprolol: A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.. metoprolol : A propanolamine that is 1-(propan-2-ylamino)propan-2-ol substituted by a 4-(2-methoxyethyl)phenoxy group at position 1.	2.04	1	0	aromatic ether; propanolamine; secondary alcohol; secondary amino compound	antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; geroprotector; xenobiotic
metyrapone Metyrapone: An inhibitor of the enzyme STEROID 11-BETA-MONOOXYGENASE. It is used as a test of the feedback hypothalamic-pituitary mechanism in the diagnosis of CUSHING SYNDROME.. metyrapone : An aromatic ketone that is 3,3-dimethylbutan-2-one in which the methyl groups at positions 1 and 4 are replaced by pyridin-3-yl groups. A steroid 11beta-monooxygenase (EC 1.14.15.4) inhibitor, it is used in the diagnosis of adrenal insufficiency.	1.96	1	0	aromatic ketone	antimetabolite; diagnostic agent; EC 1.14.15.4 (steroid 11beta-monooxygenase) inhibitor
midazolam Midazolam: A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH.. midazolam : An imidazobenzodiazepine that is 4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted by a methyl, 2-fluorophenyl and chloro groups at positions 1, 6 and 8, respectively.	2.04	1	0	imidazobenzodiazepine; monofluorobenzenes; organochlorine compound	anticonvulsant; antineoplastic agent; anxiolytic drug; apoptosis inducer; central nervous system depressant; GABAA receptor agonist; general anaesthetic; muscle relaxant; sedative
apnea Apnea: A transient absence of spontaneous respiration.	1.95	1	0	purine nucleoside
nalidixic acid [no description available]	2.37	2	0	1,8-naphthyridine derivative; monocarboxylic acid; quinolone antibiotic	antibacterial drug; antimicrobial agent; DNA synthesis inhibitor
nimodipine Nimodipine: A calcium channel blockader with preferential cerebrovascular activity. It has marked cerebrovascular dilating effects and lowers blood pressure.. nimodipine : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a (2-methoxyethoxy)carbonyl group at position 3, a m-nitrophenyl group at position 4, and an isopropoxycarbonyl group at position 5. An L-type calcium channel blocker, it acts particularly on cerebral circulation, and is used both orally and intravenously for the prevention and treatment of subarachnoid hemorrhage from ruptured intracranial aneurysm.	7.01	1	0	2-methoxyethyl ester; C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; isopropyl ester	antihypertensive agent; calcium channel blocker; cardiovascular drug; vasodilator agent
nitrazepam Nitrazepam: A benzodiazepine derivative used as an anticonvulsant and hypnotic.. nitrazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one which is substituted at positions 5 and 7 by phenyl and nitro groups, respectively. It is used as a hypnotic for the short-term management of insomnia and for the treatment of epileptic spasms in infants (West's syndrome).	2.04	1	0	1,4-benzodiazepinone; C-nitro compound	anticonvulsant; antispasmodic drug; drug metabolite; GABA modulator; sedative
ofloxacin Ofloxacin: A synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA GYRASE, halting DNA REPLICATION.. 9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid : An oxazinoquinoline that is 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinolin-7-one substituted by methyl, carboxy, fluoro, and 4-methylpiperazin-1-yl groups at positions 3, 6, 9, and 10, respectively.. ofloxacin : A racemate comprising equimolar amounts of levofloxacin and dextrofloxacin. It is a synthetic fluoroquinolone antibacterial agent which inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.	2.03	1	0	3-oxo monocarboxylic acid; N-arylpiperazine; N-methylpiperazine; organofluorine compound; oxazinoquinoline
oxprenolol Oxprenolol: A beta-adrenergic antagonist used in the treatment of hypertension, angina pectoris, arrhythmias, and anxiety.	2.04	1	0	aromatic ether
4-dichlorobenzene dichlorobenzene : Any member of the class of chlorobenzenes carrying two chloro groups at unspecified positions.. 1,4-dichlorobenzene : A dichlorobenzene carrying chloro groups at positions 1 and 4.	2.05	1	0	dichlorobenzene	insecticide
phenobarbital Phenobarbital: A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.. phenobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and phenyl groups.	2.89	4	0	barbiturates	anticonvulsant; drug allergen; excitatory amino acid antagonist; sedative
o-phthalaldehyde o-Phthalaldehyde: A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.. phthalaldehyde : A dialdehyde in which two formyl groups are attached to adjacent carbon centres on a benzene ring.	5.33	2	2	benzaldehydes; dialdehyde	epitope
pindolol Pindolol: A moderately lipophilic beta blocker (ADRENERGIC BETA-ANTAGONISTS). It is non-cardioselective and has intrinsic sympathomimetic actions, but little membrane-stabilizing activity. (From Martindale, The Extra Pharmocopoeia, 30th ed, p638). pindolol : A member of the class of indols which is the 2-hydroxy-3-(isopropylamino)propyl ether derivative of 1H-indol-4-ol.	2.04	1	0	indoles; secondary amine	antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist; serotonergic antagonist; vasodilator agent
practolol Practolol: A beta-1 adrenergic antagonist that has been used in the emergency treatment of CARDIAC ARRYTHMIAS.. practolol : N-(4-Hydroxyphenyl)acetamide in which the hydrogen of the phenolic hydroxy group is substituted by a 3-(isopropylaminoamino)-2-hydroxypropyl group. A selective beta blocker, it has been used in the emergency treatment of cardiac arrhythmias.	2.04	1	0	acetamides; ethanolamines; propanolamine; secondary alcohol; secondary amino compound	anti-arrhythmia drug; beta-adrenergic antagonist
propofol Propofol: An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS.. propofol : A phenol resulting from the formal substitution of the hydrogen at the 2 position of 1,3-diisopropylbenzene by a hydroxy group.	3.17	1	0	phenols	anticonvulsant; antiemetic; intravenous anaesthetic; radical scavenger; sedative
propranolol Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.. propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3.	2.04	1	0	naphthalenes; propanolamine; secondary amine	anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic
protoporphyrin ix protoporphyrin IX: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7685. protoporphyrin : A cyclic tetrapyrrole that consists of porphyrin bearing four methyl substituents at positions 3, 8, 13 and 17, two vinyl substituents at positions 7 and 12 and two 2-carboxyethyl substituents at positions 2 and 18. The parent of the class of protoporphyrins.	2.13	1	0
pyrimethamine Maloprim: contains above 2 cpds	2.02	1	0	aminopyrimidine; monochlorobenzenes	antimalarial; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor
saccharin Saccharin: Flavoring agent and non-nutritive sweetener.. saccharin : A 1,2-benzisothiazole having a keto-group at the 3-position and two oxo substituents at the 1-position. It is used as an artificial sweetening agent.	3.08	1	0	1,2-benzisothiazole; N-sulfonylcarboxamide	environmental contaminant; sweetening agent; xenobiotic
safrole Safrole: A member of the BENZODIOXOLES that is a constituent of several VOLATILE OILS, notably SASSAFRAS oil. It is a precursor in the synthesis of the insecticide PIPERONYL BUTOXIDE and the drug N-methyl-3,4-methylenedioxyamphetamine (MDMA).. safrole : A member of the class of benzodioxoles that is 1,3-benzodioxole which is substituted by an allyl group at position 5. It is found in several plants, including black pepper, cinnamon and nutmeg, and is present in several essential oils, notably that of sassafras. It has insecticidal properties and has been used as a topical antiseptic. Although not thought to pose a significant carcinogenic risk to humans, findings of weak carcinogenicity in rats have resulted in the banning of its (previously widespread) use in perfumes and soaps, and as a food additive.	2	1	0	benzodioxoles	flavouring agent; insecticide; metabolite; plant metabolite
sevoflurane Sevoflurane: A non-explosive inhalation anesthetic used in the induction and maintenance of general anesthesia. It does not cause respiratory irritation and may also prevent PLATELET AGGREGATION.. sevoflurane : An ether compound having fluoromethyl and 1,1,1,3,3,3-hexafluoroisopropyl as the two alkyl groups.	3.56	2	0	ether; organofluorine compound	central nervous system depressant; inhalation anaesthetic; platelet aggregation inhibitor
iodoacetic acid Iodoacetic Acid: A derivative of ACETIC ACID that contains one IODINE atom attached to its methyl group.. iodoacetic acid : A haloacetic acid that is acetic acid in which one of the hydrogens of the methyl group is replaced by an iodine atom.	1.97	1	0	haloacetic acid; organoiodine compound	alkylating agent
stearic acid octadecanoic acid : A C18 straight-chain saturated fatty acid component of many animal and vegetable lipids. As well as in the diet, it is used in hardening soaps, softening plastics and in making cosmetics, candles and plastics.	2	1	0	long-chain fatty acid; saturated fatty acid; straight-chain saturated fatty acid	algal metabolite; Daphnia magna metabolite; human metabolite; plant metabolite
sulforaphane sulforaphane: from Cardaria draba L.. sulforaphane : An isothiocyanate having a 4-(methylsulfinyl)butyl group attached to the nitrogen.	3.46	1	1	isothiocyanate; sulfoxide	antineoplastic agent; antioxidant; EC 3.5.1.98 (histone deacetylase) inhibitor; plant metabolite
tegafur [no description available]	2.04	1	0	organohalogen compound; pyrimidines
thiabendazole Tresaderm: dermatologic soln containing dexamethasone, thiabendazole & neomycin sulfate	3.05	1	0	1,3-thiazoles; benzimidazole fungicide; benzimidazoles	antifungal agrochemical; antinematodal drug
thioridazine Thioridazine: A phenothiazine antipsychotic used in the management of PHYCOSES, including SCHIZOPHRENIA.. thioridazine : A phenothiazine derivative having a methylsulfanyl subsitituent at the 2-position and a (1-methylpiperidin-2-yl)ethyl] group at the N-10 position.	2.04	1	0	phenothiazines; piperidines	alpha-adrenergic antagonist; dopaminergic antagonist; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; first generation antipsychotic; H1-receptor antagonist; serotonergic antagonist
tolbutamide Tolbutamide: A sulphonylurea hypoglycemic agent with actions and uses similar to those of CHLORPROPAMIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290). tolbutamide : An N-sulfonylurea that consists of 1-butylurea having a tosyl group attached at the 3-position.	2.04	1	0	N-sulfonylurea	human metabolite; hypoglycemic agent; insulin secretagogue; potassium channel blocker
triclosan [no description available]	3.34	1	1	aromatic ether; dichlorobenzene; monochlorobenzenes; phenols	antibacterial agent; antimalarial; drug allergen; EC 1.3.1.9 [enoyl-[acyl-carrier-protein] reductase (NADH)] inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; fungicide; persistent organic pollutant; xenobiotic
trifluoperazine [no description available]	2.04	1	0	N-alkylpiperazine; N-methylpiperazine; organofluorine compound; phenothiazines	antiemetic; calmodulin antagonist; dopaminergic antagonist; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor; phenothiazine antipsychotic drug
trihexyphenidyl Trihexyphenidyl: One of the centrally acting MUSCARINIC ANTAGONISTS used for treatment of PARKINSONIAN DISORDERS and drug-induced extrapyramidal movement disorders and as an antispasmodic.	2.04	1	0	amine
trimethoprim Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported.. trimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge.	2.02	1	0	aminopyrimidine; methoxybenzenes	antibacterial drug; diuretic; drug allergen; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; environmental contaminant; xenobiotic
tripelennamine Tripelennamine: A histamine H1 antagonist with low sedative action but frequent gastrointestinal irritation. It is used to treat ASTHMA; HAY FEVER; URTICARIA; and RHINITIS; and also in veterinary applications. Tripelennamine is administered by various routes, including topically.	1.94	1	0	aromatic amine
urethane [no description available]	2.9	4	0	carbamate ester	fungal metabolite; mutagen
mitomycin Mitomycin: An antineoplastic antibiotic produced by Streptomyces caespitosus. It is one of the bi- or tri-functional ALKYLATING AGENTS causing cross-linking of DNA and inhibition of DNA synthesis.. mitomycin : A family of aziridine-containing natural products isolated from Streptomyces caespitosus or Streptomyces lavendulae.	1.97	1	0	mitomycin	alkylating agent; antineoplastic agent
prednisolone Prednisolone: A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.. prednisolone : A glucocorticoid that is prednisone in which the oxo group at position 11 has been reduced to the corresponding beta-hydroxy group. It is a drug metabolite of prednisone.	1.96	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; C21-steroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antineoplastic agent; drug metabolite; environmental contaminant; immunosuppressive agent; xenobiotic
lysergic acid diethylamide Lysergic Acid Diethylamide: Semisynthetic derivative of ergot (Claviceps purpurea). It has complex effects on serotonergic systems including antagonism at some peripheral serotonin receptors, both agonist and antagonist actions at central nervous system serotonin receptors, and possibly effects on serotonin turnover. It is a potent hallucinogen, but the mechanisms of that effect are not well understood.. lysergic acid diethylamide : An ergoline alkaloid arising from formal condensation of lysergic acid with diethylamine.	1.95	1	0	ergoline alkaloid; monocarboxylic acid amide; organic heterotetracyclic compound	dopamine agonist; hallucinogen; serotonergic agonist
reserpine Reserpine: An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.. reserpine : An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria.	1.98	1	0	alkaloid ester; methyl ester; yohimban alkaloid	adrenergic uptake inhibitor; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; environmental contaminant; first generation antipsychotic; plant metabolite; xenobiotic
cephaloridine Cephaloridine: A cephalosporin antibiotic.. cefaloridine : A cephalosporin compound having pyridinium-1-ylmethyl and 2-thienylacetamido side-groups. A first-generation semisynthetic derivative of cephalosporin C.	1.94	1	0	beta-lactam antibiotic allergen; cephalosporin; semisynthetic derivative	antibacterial drug
sorbitol D-glucitol : The D-enantiomer of glucitol (also known as D-sorbitol).	3.45	2	0	glucitol	cathartic; Escherichia coli metabolite; food humectant; human metabolite; laxative; metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite; sweetening agent
thymidine [no description available]	7.4	2	0	pyrimidine 2'-deoxyribonucleoside	Escherichia coli metabolite; human metabolite; metabolite; mouse metabolite
piperonyl butoxide [no description available]	3.05	1	0	benzodioxoles	pesticide synergist
triethylenemelamine Triethylenemelamine: Toxic alkylating agent used in industry; also as antineoplastic and research tool to produce chromosome aberrations and cancers.	2.36	2	0	1,3,5-triazines	alkylating agent; insect sterilant
hydroxyproline Hydroxyproline: A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.. hydroxyproline : A proline derivative that is proline substituted by at least one hydroxy group.	1.94	1	0	4-hydroxyproline; L-alpha-amino acid zwitterion	human metabolite; mouse metabolite; plant metabolite
spironolactone Spironolactone: A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827). spironolactone : A steroid lactone that is 17alpha-pregn-4-ene-21,17-carbolactone substituted by an oxo group at position 3 and an alpha-acetylsulfanyl group at position 7.	2.04	1	0	3-oxo-Delta(4) steroid; oxaspiro compound; steroid lactone; thioester	aldosterone antagonist; antihypertensive agent; diuretic; environmental contaminant; xenobiotic
estrone Hydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens.	1.94	1	0	17-oxo steroid; 3-hydroxy steroid; phenolic steroid; phenols	antineoplastic agent; bone density conservation agent; estrogen; human metabolite; mouse metabolite
2-acetylaminofluorene 2-Acetylaminofluorene: A hepatic carcinogen whose mechanism of activation involves N-hydroxylation to the aryl hydroxamic acid followed by enzymatic sulfonation to sulfoxyfluorenylacetamide. It is used to study the carcinogenicity and mutagenicity of aromatic amines.	7.37	2	0	2-acetamidofluorenes	antimitotic; carcinogenic agent; epitope; mutagen
penicillin g Penicillin G: A penicillin derivative commonly used in the form of its sodium or potassium salts in the treatment of a variety of infections. It is effective against most gram-positive bacteria and against gram-negative cocci. It has also been used as an experimental convulsant because of its actions on GAMMA-AMINOBUTYRIC ACID mediated synaptic transmission.. benzylpenicillin : A penicillin in which the substituent at position 6 of the penam ring is a phenylacetamido group.	1.97	1	0	penicillin allergen; penicillin	antibacterial drug; drug allergen; epitope
pilocarpine Pilocarpine: A slowly hydrolyzed muscarinic agonist with no nicotinic effects. Pilocarpine is used as a miotic and in the treatment of glaucoma.. (+)-pilocarpine : The (+)-enantiomer of pilocarpine.	1.93	1	0	pilocarpine	antiglaucoma drug
diethylnitrosamine Diethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties.. N-nitrosodiethylamine : A nitrosamine that is N-ethylethanamine substituted by a nitroso group at the N-atom.	1.98	1	0	nitrosamine	carcinogenic agent; hepatotoxic agent; mutagen
isoflurophate Isoflurophate: A di-isopropyl-fluorophosphate which is an irreversible cholinesterase inhibitor used to investigate the NERVOUS SYSTEM.	2.01	1	0	dialkyl phosphate
biguanides Biguanides: Derivatives of biguanide (the structure formula HN(C(NH)NH2)2) that are primarily used as oral HYPOGLYCEMIC AGENTS for the treatment of DIABETES MELLITUS, TYPE 2 and PREDIABETES.. biguanides : A class of oral hypoglycemic drugs used for diabetes mellitus or prediabetes treatment. They have a structure based on the 2-carbamimidoylguanidine skeleton.	3.09	1	0	guanidines
carbon tetrachloride Carbon Tetrachloride: A solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed). tetrachloromethane : A chlorocarbon that is methane in which all the hydrogens have been replaced by chloro groups.	4.82	4	0	chlorocarbon; chloromethanes	hepatotoxic agent; refrigerant
serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group.	1.95	1	0	L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
chloramphenicol Amphenicol: Chloramphenicol and its derivatives.	2.35	2	0	C-nitro compound; carboxamide; diol; organochlorine compound	antibacterial drug; antimicrobial agent; Escherichia coli metabolite; geroprotector; Mycoplasma genitalium metabolite; protein synthesis inhibitor
aspartic acid Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.. aspartic acid : An alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent. L-aspartic acid : The L-enantiomer of aspartic acid.	2.04	1	0	aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; mouse metabolite; neurotransmitter
glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4.	2.07	1	0	amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid	EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine.	2.87	4	0	aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid	algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
cyanides Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.. cyanides : Salts and C-organyl derivatives of hydrogen cyanide, HC#N.. isocyanide : The isomer HN(+)#C(-) of hydrocyanic acid, HC#N, and its hydrocarbyl derivatives RNC (RN(+)#C(-)).. cyanide : A pseudohalide anion that is the conjugate base of hydrogen cyanide.	1.94	1	0	pseudohalide anion	EC 1.9.3.1 (cytochrome c oxidase) inhibitor
dimazine dimazine: RN given refers to parent cpd. 1,1-dimethylhydrazine : A member of the class of hydrazines that is hydrazine substituted by two methyl groups at position 1.	1.93	1	0	hydrazines	carcinogenic agent; fuel; teratogenic agent
sucrose Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.	7.67	3	0	glycosyl glycoside	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; sweetening agent
chlordan Chlordan: A highly poisonous organochlorine insecticide. The EPA has cancelled registrations of pesticides containing this compound with the exception of its use through subsurface ground insertion for termite control and the dipping of roots or tops of non-food plants. (From Merck Index, 11th ed)	1.95	1	0	cyclodiene organochlorine insecticide	GABA-gated chloride channel antagonist; persistent organic pollutant
cephalothin Cephalothin: A cephalosporin antibiotic.. cefalotin : A semisynthetic, first-generation cephalosporin antibiotic with acetoxymethyl and (2-thienylacetyl)nitrilo moieties at positions 3 and 7, respectively, of the core structure. Administered parenterally during surgery and to treat a wide spectrum of blood infections.	1.95	1	0	azabicycloalkene; beta-lactam antibiotic allergen; carboxylic acid; cephalosporin; semisynthetic derivative; thiophenes	antibacterial drug; antimicrobial agent
uridine [no description available]	7.64	3	0	uridines	drug metabolite; fundamental metabolite; human metabolite
uridine monophosphate Uridine Monophosphate: 5'-Uridylic acid. A uracil nucleotide containing one phosphate group esterified to the sugar moiety in the 2', 3' or 5' position.. uridine 5'-monophosphate : A pyrimidine ribonucleoside 5'-monophosphate having uracil as the nucleobase.	1.93	1	0	pyrimidine ribonucleoside 5'-monophosphate; uridine 5'-phosphate	Escherichia coli metabolite; human metabolite; mouse metabolite
kanamycin a Kanamycin: Antibiotic complex produced by Streptomyces kanamyceticus from Japanese soil. Comprises 3 components: kanamycin A, the major component, and kanamycins B and C, the minor components.. kanamycin : Kanamycin is a naturally occurring antibiotic complex from Streptomyces kanamyceticus that consists of several components: kanamycin A, the major component (also usually designated as kanamycin), and kanamycins B, C, D and X the minor components.	1.94	1	0	kanamycins	bacterial metabolite
bromodeoxyuridine Bromodeoxyuridine: A nucleoside that substitutes for thymidine in DNA and thus acts as an antimetabolite. It causes breaks in chromosomes and has been proposed as an antiviral and antineoplastic agent. It has been given orphan drug status for use in the treatment of primary brain tumors.	2.37	2	0	pyrimidine 2'-deoxyribonucleoside	antimetabolite; antineoplastic agent
edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive.	2.35	2	0	ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid	anticoagulant; antidote; chelator; copper chelator; geroprotector
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring.	2.88	4	0	amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine	EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical
cysteamine Cysteamine: A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.. cysteamine : An amine that consists of an ethane skeleton substituted with a thiol group at C-1 and an amino group at C-2.	1.98	1	0	amine; thiol	geroprotector; human metabolite; mouse metabolite; radiation protective agent
methicillin Methicillin: One of the PENICILLINS which is resistant to PENICILLINASE but susceptible to a penicillin-binding protein. It is inactivated by gastric acid so administered by injection.. methicillin : A penicillin that is 6-aminopenicillanic acid in which one of the amino hydrogens is replaced by a 2,6-dimethoxybenzoyl group.	1.94	1	0	penicillin allergen; penicillin	antibacterial drug
leucine Leucine: An essential branched-chain amino acid important for hemoglobin formation.. leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group.	7.72	2	0	amino acid zwitterion; L-alpha-amino acid; leucine; proteinogenic amino acid; pyruvate family amino acid	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite
ethyl methanesulfonate Ethyl Methanesulfonate: An antineoplastic agent with alkylating properties. It also acts as a mutagen by damaging DNA and is used experimentally for that effect.. ethyl methanesulfonate : A methanesulfonate ester resulting from the formal condensation of methanesulfonic acid with ethanol.	2.88	4	0	methanesulfonate ester	alkylating agent; antineoplastic agent; carcinogenic agent; genotoxin; mutagen; teratogenic agent
dimethylnitrosamine Dimethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties. It causes serious liver damage and is a hepatocarcinogen in rodents.	1.95	1	0	nitrosamine	geroprotector; mutagen
methionine Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4.	7.86	4	0	aspartate family amino acid; L-alpha-amino acid; methionine zwitterion; methionine; proteinogenic amino acid	antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical
1,2-dipalmitoylphosphatidylcholine 1,2-Dipalmitoylphosphatidylcholine: Synthetic phospholipid used in liposomes and lipid bilayers to study biological membranes. It is also a major constituent of PULMONARY SURFACTANTS.	1.99	1	0
phenylalanine Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group.	2.45	2	0	amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid	algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
diethyl sulfate diethyl sulfate: RN given refers to parent cpd; structure. diethyl sulfate : The diethyl ester of sulfuric acid.	1.97	1	0	alkyl sulfate	alkylating agent; apoptosis inducer; carcinogenic agent; mutagen
cytidine [no description available]	1.96	1	0	cytidines	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
ficusin Ficusin: A naturally occurring furocoumarin, found in PSORALEA. After photoactivation with UV radiation, it binds DNA via single and double-stranded cross-linking.. psoralen : The simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia.	2.25	1	0	psoralens	plant metabolite
chloroform Chloroform: A commonly used laboratory solvent. It was previously used as an anesthetic, but was banned from use in the U.S. due to its suspected carcinogenicity.. chloroform : A one-carbon compound that is methane in which three of the hydrogens are replaced by chlorines.	4.77	10	0	chloromethanes; one-carbon compound	carcinogenic agent; central nervous system drug; inhalation anaesthetic; non-polar solvent; refrigerant
dimethylformamide Dimethylformamide: A formamide in which the amino hydrogens are replaced by methyl groups.. N,N-dimethylformamide : A member of the class of formamides that is formamide in which the amino hydrogens are replaced by methyl groups.	2.92	4	0	formamides; volatile organic compound	geroprotector; hepatotoxic agent; polar aprotic solvent
ampicillin Ampicillin: Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.. ampicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-phenylacetamido group.	2.39	2	0	beta-lactam antibiotic; penicillin allergen; penicillin	antibacterial drug
histidine Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3.	3.45	8	0	amino acid zwitterion; histidine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid	algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
1,1,1-trichloroethane Trichloroethanes: Chlorinated ethanes which are used extensively as industrial solvents. They have been utilized in numerous home-use products including spot remover preparations and inhalant decongestant sprays. These compounds cause central nervous system and cardiovascular depression and are hepatotoxic. Include 1,1,1- and 1,1,2-isomers.. 1,1,1-trichloroethane : A member of the class of chloroethanes carrying three chloro substituents at position 1.	2.04	1	0	chloroethanes	polar solvent
valine Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine.	8.01	28	1	L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid; valine	algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
tryptophan Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.	1.96	1	0	erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; tryptophan zwitterion; tryptophan	antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group.	2.37	2	0	arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical
methyl bromide methyl bromide: used in ionization chambers, degreasing wool, extracting oils; insect fumigant; high concentrations can produce pulmonary edema,narcosis; chronic exposure can cause CNS depression,kidney injury; RN given refers to parent cpd; structure. bromomethane : A one-carbon compound in which the carbon is attached by single bonds to three hydrogen atoms and one bromine atom. It is produced naturally by marine algae.	4.57	8	0	bromohydrocarbon; bromomethanes; methyl halides	algal metabolite; fumigant insecticide; marine metabolite
ethane Ethane: A two carbon alkane with the formula H3C-CH3.. ethane : An alkane comprising of two carbon atoms.	3.56	2	0	alkane; gas molecular entity	plant metabolite; refrigerant
ethylene Plastipore: high density polyethylene sponge biocompatible material; used as posts in dental bridges	6.92	39	0	alkene; gas molecular entity	plant hormone; refrigerant
acetylene [no description available]	4.35	6	0	alkyne; gas molecular entity; terminal acetylenic compound
boranes Boranes: The collective name for the boron hydrides, which are analogous to the alkanes and silanes. Numerous boranes are known. Some have high calorific values and are used in high-energy fuels. (From Grant & Hackh's Chemical Dictionary, 5th ed). borane : The simplest borane, consisting of a single boron atom carrying three hydrogens.. boranes : The molecular hydrides of boron.	3.41	7	0	boranes; mononuclear parent hydride
bromoethane bromoethane : A bromoalkane that is ethane carrying a bromo substituent. It is an alkylating agent used as a chemical intermediate in various organic syntheses.	7.01	1	0	bromoalkane; bromohydrocarbon; volatile organic compound	alkylating agent; carcinogenic agent; local anaesthetic; refrigerant; solvent
propane Propane: A three carbon alkane with the formula H3CCH2CH3.	3.98	4	0	alkane; gas molecular entity	food propellant
ethyl chloride Ethyl Chloride: A gas that condenses under slight pressure. Because of its low boiling point ethyl chloride sprayed on skin produces an intense cold by evaporation. Cold blocks nerve conduction. Ethyl chloride has been used in surgery but is primarily used to relieve local pain in sports medicine.. chloroethane : The simplest and least toxic member of the class of chloroethanes, that is ethane in which a single hydrogen is substituted by a chlorine. A colourless gas at room temperature and pressure (boiling point 12degreeC), it is used as a mild topical anaesthetic to numb the skin prior to ear piercing, skin biopsies, etc., and is also used in the treatment of sports injuries. It was formerly used in the production of tetraethyllead.	2.37	2	0	chloroethanes	antipruritic drug; inhalation anaesthetic; local anaesthetic
vinyl chloride Vinyl Chloride: A gas that has been used as an aerosol propellant and is the starting material for polyvinyl resins. Toxicity studies have shown various adverse effects, particularly the occurrence of liver neoplasms.. chloroethene : A monohaloethene that is ethene in which one of the hydrogens has been replaced by a chloro group.	6.56	27	0	chloroethenes; gas molecular entity; monohaloethene	carcinogenic agent
vinyl fluoride [no description available]	7.03	1	0	gas molecular entity; monohaloethene
acetonitrile acetonitrile: RN given refers to unlabeled cpd. acetonitrile : A nitrile that is hydrogen cyanide in which the hydrogen has been replaced by a methyl group.	2.05	1	0	aliphatic nitrile; volatile organic compound	EC 3.5.1.4 (amidase) inhibitor; NMR chemical shift reference compound; polar aprotic solvent
methylene chloride Methylene Chloride: A chlorinated hydrocarbon that has been used as an inhalation anesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology.. dichloromethane : A member of the class of chloromethanes that is methane in which two of the hydrogens have been replaced by chlorine. A dense, non-flammible colourless liquid at room temperature (b.p. 40degreeC, d = 1.33) which is immiscible with water, it is widely used as a solvent, a paint stripper, and for the removal of caffeine from coffee and tea.	5.12	8	0	chloromethanes; volatile organic compound	carcinogenic agent; polar aprotic solvent; refrigerant
difluoromethane difluoromethane: structure given in first source	2.02	1	0	fluoromethanes	refrigerant
isocyanic acid isocyanic acid: structure. isocyanic acid : A colourless, volatile, poisonous inorganic compound with the formula HNCO; the simplest stable chemical compound that contains carbon, hydrogen, nitrogen, and oxygen, the four most commonly-found elements in organic chemistry and biology.	2.38	2	0	hydracid; one-carbon compound
carbon disulfide Carbon Disulfide: A colorless, flammable, poisonous liquid, CS2. It is used as a solvent, and is a counterirritant and has local anesthetic properties but is not used as such. It is highly toxic with pronounced CNS, hematologic, and dermatologic effects.	4.25	3	0	one-carbon compound; organosulfur compound
cyclopropane cyclopropane : A cycloalkane composed of three carbon atoms to form a ring.	4.65	9	0	cycloalkane; cyclopropanes	inhalation anaesthetic
boron trifluoride [no description available]	8.31	6	0	boron fluoride	NMR chemical shift reference compound
propyleneimine [no description available]	1.99	1	0	aziridines
propylene oxide propylene oxide: structure. 1,2-epoxypropane : An epoxide that is oxirane substituted by a methyl group at position 2.	8.33	101	0	epoxide
dichlorodifluoromethane dichlorodifluoromethane: refrigerant,aerosol propellant	1.96	1	0
tetrafluoromethane tetrafluoromethane: structure in first source	2	1	0	fluorocarbon; fluoromethanes	refrigerant
1,1,1-trifluoro-2-chloroethane 1,1,1-trifluoro-2-chloroethane: volatile metabolite of halothane	2.04	1	0	organofluorine compound
trichloroacetic acid Trichloroacetic Acid: A strong acid used as a protein precipitant in clinical chemistry and also as a caustic for removing warts.. trichloroacetic acid : A monocarboxylic acid that is acetic acid in which all three methyl hydrogens are substituted by chlorine.	1.95	1	0	monocarboxylic acid; organochlorine compound	carcinogenic agent; metabolite; mouse metabolite
trifluoroacetic acid Trifluoroacetic Acid: A very strong halogenated derivative of acetic acid. It is used in acid catalyzed reactions, especially those where an ester is cleaved in peptide synthesis.. trifluoroacetic acid : A monocarboxylic acid that is the trifluoro derivative of acetic acid.	1.99	1	0	fluoroalkanoic acid	human xenobiotic metabolite; NMR chemical shift reference compound; reagent
pinacol pinacol : A glycol that is ethylene glycol in which all four methylene hydrogens have been replaced by methyl groups.	2.21	1	0	glycol
phencyclidine Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects.	2.66	3	0	benzenes; piperidines	anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug
butobarbital butobarbital: Butobarbital should be distinguished from Butabarbital (a synonym for Secbutabarbital)	2.04	1	0	barbiturates
dimethyl sulfate dimethyl sulfate: RN given refers to unlabeled cpd; structure. dimethyl sulfate : The dimethyl ester of sulfuric acid.	7.38	2	0	alkyl sulfate	alkylating agent; immunosuppressive agent
tromethamine Tromethamine: An organic amine proton acceptor. It is used in the synthesis of surface-active agents and pharmaceuticals; as an emulsifying agent for cosmetic creams and lotions, mineral oil and paraffin wax emulsions, as a biological buffer, and used as an alkalizer. (From Merck, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p1424)	2.37	2	0	primary amino compound; triol	buffer
pentaerythritol tetranitrate Pentaerythritol Tetranitrate: A vasodilator with general properties similar to NITROGLYCERIN but with a more prolonged duration of action. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1025). pentaerythritol tetranitrate : A pentaerythritol nitrate in which all four hydroxy groups of pentaerythritol have been converted to the corresponding nitrate ester. It is a vasodilator with properties similar to those of glyceryl trinitrate, but with a more prolonged duration of action, and is used for treatment of angina pectoris. It is also one of the most powerful high explosives known and is a component of the plastic explosive known as Semtex.	2.41	1	0	pentaerythritol nitrate	explosive; vasodilator agent
linalool linalool: RN given refers to parent cpd without isomeric designation; structure. linalool : A monoterpenoid that is octa-1,6-diene substituted by methyl groups at positions 3 and 7 and a hydroxy group at position 3. It has been isolated from plants like Ocimum canum.	2.45	2	0	monoterpenoid; tertiary alcohol	antimicrobial agent; fragrance; plant metabolite; volatile oil component
isoprene isoprene: used in manufacture of ''synthetic'' rubber, butyl rubber; copolymer in production of elastomers; structure. isoprene : A hemiterpene with the formula CH2=C(CH3)CH=CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurring compounds.	9.52	25	0	alkadiene; hemiterpene; volatile organic compound	plant metabolite
isobutyl alcohol isobutyl alcohol: RN given refers to parent cpd	2.04	1	0	alkyl alcohol; primary alcohol	Saccharomyces cerevisiae metabolite
2-chloro-1-propanol [no description available]	1.97	1	0
methylethyl ketone methylethyl ketone: solvent; colorless synthetic resins, smokeless powders; may be irritating to eyes, mucous membranes; may be toxic in high concentrations; structure. butanone : Any ketone that is butane substituted by an oxo group at unspecified position.. butan-2-one : A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2.	2.04	1	0	butanone; dialkyl ketone; methyl ketone; volatile organic compound	bacterial metabolite; polar aprotic solvent
chloroacetone [no description available]	6.96	1	0	alpha-chloroketone
trichloroethylene Trichloroethylene: A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.. triol : A chemical compound containing three hydroxy groups.	4.83	6	0	chloroethenes	inhalation anaesthetic; mouse metabolite
chloroacetyl chloride [no description available]	2.13	1	0	acyl halide
acrylamide [no description available]	3.8	11	0	acrylamides; N-acylammonia; primary carboxamide	alkylating agent; carcinogenic agent; Maillard reaction product; mutagen; neurotoxin
acrylic acid acrylic acid: RN given refers to parent cpd. acrylic acid : A alpha,beta-unsaturated monocarboxylic acid that is ethene substituted by a carboxy group.	2.98	4	0	alpha,beta-unsaturated monocarboxylic acid	metabolite
peracetic acid Peracetic Acid: A liquid that functions as a strong oxidizing agent. It has an acrid odor and is used as a disinfectant.. peracetic acid : A peroxy acid that is acetic acid in which the OH group is substituted by a hydroperoxy group. It is a versatile oxidising agent that is used as a disinfectant.	5.39	19	0	a peroxy acid	disinfectant; oxidising agent
methylmethacrylate Methylmethacrylate: The methyl ester of methacrylic acid. It polymerizes easily to form POLYMETHYL METHACRYLATE. It is used as a bone cement.. methyl methacrylate : An enoate ester having methacrylic acid as the carboxylic acid component and methanol as the alcohol component.	2.67	3	0	enoate ester; methyl ester	allergen; polymerisation monomer
rhodamine b rhodamine B: RN & N1 from 9th CI Form Index; RN given refers to parent cpd; structure in Merck Index, 9th ed, #7973; TETRAETHYLRHODAMINE was see RHODAMINES 1975-93; use RHODAMINES to search TETRAETHYLRHODAMINE 1975-93. rhodamine B : An organic chloride salt having N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium as the counterion. An amphoteric dye commonly used as a fluorochrome.	2.46	2	0	organic chloride salt; xanthene dye	fluorescent probe; fluorochrome; histological dye
methylprednisolone Methylprednisolone: A PREDNISOLONE derivative with similar anti-inflammatory action.. 6alpha-methylprednisolone : The 6alpha-stereoisomer of 6-methylprednisolone.	2.41	1	0	6-methylprednisolone; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antiemetic; environmental contaminant; neuroprotective agent; xenobiotic
diquat Diquat: A contact herbicide used also to produce desiccation and defoliation. (From Merck Index, 11th ed). diquat : The organic cation formed formally by addition of an ethylene bridge between the nitrogen atoms of 2,2'-bipyridine. Most often available as the dibromide.	7.08	1	0	organic cation	defoliant; herbicide
phthalic anhydride phthalic anhydride : The cyclic dicarboxylic anhydride that is the anhydride of phthalic acid.	1.97	1	0	2-benzofurans; cyclic dicarboxylic anhydride	allergen
fluorene [no description available]	2.06	1	0	ortho-fused polycyclic arene; ortho-fused tricyclic hydrocarbon
penicillin v Penicillin V: A broad-spectrum penicillin antibiotic used orally in the treatment of mild to moderate infections by susceptible gram-positive organisms.. phenoxymethylpenicillin : A penicillin compound having a 6beta-(phenoxyacetyl)amino side-chain.	2.04	1	0	penicillin allergen; penicillin
penicillanic acid Penicillanic Acid: A building block of penicillin, devoid of significant antibacterial activity. (From Merck Index, 11th ed). penicillanic acid : A penam that consists of 3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane bearing a carboxy group at position 2 and having (2S,5R)-configuration.	1.97	1	0	penicillanic acids
n-vinyl-2-pyrrolidinone N-vinyl-2-pyrrolidinone: monomer of POVIDONE; structure given in first source	3.16	4	0	pyrrolidin-2-ones
styrene glycol styrene glycol: RN given refers to cpd without isomeric designation	2.02	1	0	benzenes
propylparaben Parabens: Methyl, propyl, butyl, and ethyl esters of p-hydroxybenzoic acid. They have been approved by the FDA as antimicrobial agents for foods and pharmaceuticals. (From Hawley's Condensed Chemical Dictionary, 11th ed, p872)	1.98	1	0	benzoate ester; paraben; phenols	antifungal agent; antimicrobial agent
2-xylene 2-xylene: RN given refers to parent cpd. o-xylene : A xylene substituted by methyl groups at positions 1 and 2.	2.04	1	0	xylene
styrene oxide styrene oxide: structure. styrene oxide : An epoxide that is oxirane in which one of the hydrogens has been replaced by a phenyl group.	4.03	14	0	epoxide	human xenobiotic metabolite
1,2-dibromo-3-chloropropane 1,2-dibromo-3-chloropropane: RN given refers to cpd with specified locants for bromine & chlorine moieties	2.37	2	0	organochlorine compound
3-methylpentane 3-methylpentane : An alkane that is pentane which is substituted by a methyl group at position 3. It is used as a solvent in organic synthesis, as a lubricant and as a raw material for producing carbon black.	2.04	1	0	alkane; volatile organic compound	allelochemical; human metabolite; non-polar solvent
methyl acrylate [no description available]	2.37	2	0	enoate ester
methylcyclopentane methylcyclopentane: toxic; RN 96-37-7. methylcyclopentane : A cycloalkane that is cyclopentane substituted by a single methyl group.	2.04	1	0	cycloalkane; volatile organic compound	human metabolite; plant metabolite
4-butyrolactone 4-Butyrolactone: One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.. tetrahydrofuranone : Any oxolane having an oxo- substituent at any position on the tetrahydrofuran ring.. gamma-butyrolactone : A butan-4-olide that is tetrahydrofuran substituted by an oxo group at position 2.	2.03	1	0	butan-4-olide	metabolite; neurotoxin
ethylene dimethacrylate ethylene glycol dimethacrylate : The enoate ester that is the 1,2-bis(methacryloyl) derivative of ethylene glycol.	2.05	1	0	enoate ester	allergen; cross-linking reagent; polymerisation monomer
4-chloro-alpha,alpha,alpha-trifluorotoluene 4-chloro-alpha,alpha,alpha-trifluorotoluene: RN given refers to cpd with specified locants for chloride & trifluoromethyl moieties; structure given in first source	2.04	1	0
pyrrolidonecarboxylic acid Pyrrolidonecarboxylic Acid: A cyclized derivative of L-GLUTAMIC ACID. Elevated blood levels may be associated with problems of GLUTAMINE or GLUTATHIONE metabolism.. 5-oxo-L-proline : An optically active form of 5-oxoproline having L-configuration.	1.97	1	0	5-oxoproline; L-proline derivative; non-proteinogenic L-alpha-amino acid	algal metabolite
trehalose alpha,alpha-trehalose : A trehalose in which both glucose residues have alpha-configuration at the anomeric carbon.	2.03	1	0	trehalose	Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
terephthalic acid terephthalic acid: RN given refers to 1,4-benzenedicarboxylic acid. terephthalic acid : A benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids.	2.41	1	0	benzenedicarboxylic acid
styrene Styrene: A colorless, toxic liquid with a strong aromatic odor. It is used to make rubbers, polymers and copolymers, and polystyrene plastics.. styrene : A vinylarene that is benzene carrying a vinyl group. It has been isolated from the benzoin resin produced by Styrax species.	10.22	9	0	styrenes; vinylarene; volatile organic compound	mouse metabolite; mutagen; plant metabolite
1,2-epoxybutane 1,2-epoxybutane: RN given refers to cpd with unspecified isomeric designation	3.42	7	0	epoxide
epichlorohydrin Epichlorohydrin: A chlorinated epoxy compound used as an industrial solvent. It is a strong skin irritant and carcinogen.. epichlorohydrin : An epoxide that is 1,2-epoxypropene in which one of the methyl hydrogens is substituted by chlorine.	4.59	8	0	epoxide; organochlorine compound
ethylene dibromide Ethylene Dibromide: An effective soil fumigant, insecticide, and nematocide. In humans, it causes severe burning of skin and irritation of the eyes and respiratory tract. Prolonged inhalation may cause liver necrosis. It is also used in gasoline. Members of this group have caused liver and lung cancers in rodents. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), 1,2-dibromoethane may reasonably be anticipated to be a carcinogen.. 1,2-dibromoethane : A bromoalkane that is ethane carrying bromo substituents at positions 1 and 2. It is produced by marine algae.	5.15	6	0	bromoalkane; bromohydrocarbon	algal metabolite; carcinogenic agent; fumigant; marine metabolite; mouse metabolite; mutagen
1,3-butadiene buta-1,3-diene : A butadiene with unsaturation at positions 1 and 3.	4.81	10	0	butadiene	carcinogenic agent; mutagen
acrolein [no description available]	9.11	3	1	enal	herbicide; human xenobiotic metabolite; toxin
acrylonitrile [no description available]	6.82	35	0	aliphatic nitrile; volatile organic compound	antifungal agent; carcinogenic agent; fungal metabolite; mutagen; polar aprotic solvent
propargyl alcohol propargyl alcohol: irreversibly inactivates alcohol oxidase; RN given refers to parent cpd. prop-2-yn-1-ol : A terminal acetylenic compound that is prop-2-yne substituted by a hydroxy group at position 1.	2.04	1	0	propynol; terminal acetylenic compound; volatile organic compound	antifungal agent; Saccharomyces cerevisiae metabolite
chloromethyl methyl ether chloromethyl methyl ether: was MH 1977-92 (see under METHYL ETHERS 1977-90); METHOXYCHLOROMETHANE & METHYL CHLOROMETHYL ETHER were see CHLOROMETHYL METHYL ETHER 1977-92; use METHYL ETHERS to search CHLOROMETHYL METHYL ETHER 1977-92; an alpha halo ether alkylating agent used widely in chemical & plastic industries; it causes lung hyperplasias & neoplasms & skin neoplasms	3.09	1	0	ether
methyl formate methyl formate: RN given refers to parent cpd. methyl formate : A formate ester resulting from the formal condensation of formic acid with methanol. A low-boiling (31.5 degreeC) colourless, flammable liquid, it has been used as a fumigant and larvicide for tobacco and food crops.	2.42	2	0	formate ester; methyl ester; volatile organic compound	fumigant; insecticide; polar aprotic solvent; refrigerant
2-methylpentane Hexanes: Six-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives. Various polyneuropathies are caused by hexane poisoning.	2.92	4	0	alkane
3-hydroxybutanal [no description available]	2.31	1	0
propylene carbonate 4-methyl-1,3-dioxolan-2-one: structure in first source	2.01	1	0
chlorobenzene [no description available]	3.11	1	0	monochlorobenzenes	solvent
cyclohexanone [no description available]	2.06	1	0	cyclohexanones	human xenobiotic metabolite
triethylene glycol dimethacrylate [no description available]	2.77	3	0
pentane Pentanes: Five-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.. pentane : A straight chain alkane consisting of 5 carbon atoms.	2.45	2	0	alkane; volatile organic compound	non-polar solvent; refrigerant
vinyl ether vinyl ether: major descriptor (65-85); on-line search VINYL COMPOUNDS (66-85); Index Medicus search VINYL ETHER (65-85)	3.25	1	0	ether
pyrroles 1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen.	3.83	3	0	pyrrole; secondary amine
tetrahydrofuran oxolane : A cyclic ether that is butane in which one hydrogen from each methyl group is substituted by an oxygen.	2.45	2	0	cyclic ether; oxolanes; saturated organic heteromonocyclic parent; volatile organic compound	polar aprotic solvent
furan furan : A monocyclic heteroarene with a structure consisting of a 5-membered ring containing four carbons and one oxygen, with formula C4H4O. It is a toxic, flammable, low-boiling (31degreeC) colourless liquid.	2.08	1	0	furans; mancude organic heteromonocyclic parent; monocyclic heteroarene	carcinogenic agent; hepatotoxic agent; Maillard reaction product
thiophenes Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring.	2.07	1	0	mancude organic heteromonocyclic parent; monocyclic heteroarene; thiophenes; volatile organic compound	non-polar solvent
isopropyl myristate isopropyl myristate: used for microemulsions; structure	1.97	1	0	fatty acid ester
n-hexane hexane : An unbranched alkane containing six carbon atoms.	2.44	2	0	alkane; volatile organic compound	neurotoxin; non-polar solvent
succinonitrile succinonitrile: structure	7.41	1	0
cyclohexane Cyclohexane: C6H12. cyclohexane : An alicyclic hydrocarbon comprising a ring of six carbon atoms; the cyclic form of hexane, used as a raw material in the manufacture of nylon.	2.04	1	0	cycloalkane; volatile organic compound	non-polar solvent
squalane [no description available]	2.03	1	0
bis(2-chloroethyl)ether bis(2-chloroethyl)ether: structure	1.96	1	0	ether
diethylene glycol glycol ether : A hydroxyether which contains both an ether and alcohol functional groups. It is one of the most versatile classes of organic solvents which are commonly used in paints, cleaners, adhesives, pharmaceuticals and cosmetics.	6.97	1	0	hydroxyether
diethylene glycol monomethyl ether 2-(2-methoxyethoxy)ethanol : A hydroxypolyether that is the monomethyl ether derivative of diethylene glycol.	2.02	1	0	diether; glycol ether; hydroxypolyether	solvent; teratogenic agent
dibutylamine [no description available]	2.11	1	0
n-dodecane dodecane : A straight-chain alkane with 12 carbon atoms. It has been isolated from the essential oils of various plants including Zingiber officinale (ginger).	2.41	1	0	alkane	plant metabolite
dodecanol Dodecanol: A saturated 12-carbon fatty alcohol obtained from coconut oil fatty acids. It has a floral odor and is used in detergents, lubricating oils, and pharmaceuticals. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed). dodecanol : A fatty alcohol consisting of a hydroxy function at any position of an unbranched saturated chain of twelve carbon atoms.. dodecan-1-ol : A primary alcohol that is dodecane in which a hydrogen from one of the methyl groups is replaced by a hydroxy group. It is registered for use in apple and pear orchards as a Lepidopteran pheromone/sex attractant, used to disrupt the mating behaviour of certain moths whose larvae destroy crops.	3.73	2	1	dodecanol; primary alcohol	bacterial metabolite; cosmetic; insect attractant; insecticide; pheromone; plant metabolite
propylene propylene: structure	7.65	3	0	alkene; gas molecular entity	refrigerant; xenobiotic
dimethyl ether dimethyl ether : An ether in which the oxygen atom is connected to two methyl groups.	7.94	4	0	ether
dicofol Dicofol: An organochlorine insecticide.. dicofol : A tertiary alcohol that is DDT in which the benzylic hydrogen has been replaced by a hydroxy group.	1.95	1	0	monochlorobenzenes; organochlorine acaricide; tertiary alcohol
diethylhexyl phthalate Diethylhexyl Phthalate: An ester of phthalic acid. It appears as a light-colored, odorless liquid and is used as a plasticizer for many resins and elastomers.. bis(2-ethylhexyl) phthalate : A phthalate ester that is the bis(2-ethylhexyl) ester of benzene-1,2-dicarboxylic acid.	3.48	2	0	diester; phthalate ester	androstane receptor agonist; apoptosis inhibitor; plasticiser
trinitrotoluene Trinitrotoluene: A 2,4,6-trinitrotoluene, which is an explosive chemical that can cause skin irritation and other toxic consequences.. 2,4,6-trinitrotoluene : A trinitrotoluene having the nitro groups at positions 2, 4 and 6.	2.08	1	0	trinitrotoluene	explosive
framycetin Framycetin: A component of NEOMYCIN that is produced by Streptomyces fradiae. On hydrolysis it yields neamine and neobiosamine B. (From Merck Index, 11th ed). framycetin : A tetracyclic antibacterial agent derived from neomycin, being a glycoside ester of neamine and neobiosamine B.	1.94	1	0	aminoglycoside	allergen; antibacterial drug; Escherichia coli metabolite
sulfoxide sulfoxide: synergistic insecticide for use with pyrethrum, allethrin, rotenone, ryania, etc.; RN given refers to parent cpd; structure. sulfoxide : An organosulfur compound having the structure R2S=O or R2C=S=O (R =/= H).	2	1	0	benzodioxoles
trimethyl phosphite trimethyl phosphite: structure. trimethyl phosphite : An organophosphorus compound that is phosphane in which the three hydrogens are replaced by methoxy groups. It is an alkylating agent used primarily in the synthesis of organophosphate compounds.	2.01	1	0	organophosphorus compound	alkylating agent
cyclonite cyclonite: explosive & convulsant; structure. 1,3,5-trinitro-1,3,5-triazinane : An N-nitro compound that is 1,3,5-triazinane in which all three of the hydrogens attached to the nitrogens have been replaced by nitro groups. It is widely used in both industrial and military explosives.	2.08	1	0	1,3,5-triazinanes; N-nitro compound	explosive
1,4-naphthoquinone naphthoquinone : A polycyclic aromatic ketone metabolite of naphthalene.. 1,4-naphthoquinone : The parent structure of the family of 1,4-naphthoquinones, in which the oxo groups of the quinone moiety are at positions 1 and 4 of the naphthalene ring. Derivatives have pharmacological properties.	2.07	1	0	1,4-naphthoquinones
2-naphthol 2-naphthol: RN given refers to parent cpd. 2-naphthol : A naphthol carrying a hydroxy group at position 2.. naphthols : Any hydroxynaphthalene derivative that has a single hydroxy substituent.	2.05	1	0	naphthol	antinematodal drug; genotoxin; human urinary metabolite; human xenobiotic metabolite; mouse metabolite; radical scavenger
ziram Ziram: An industrial fungicide with low mammalian toxicity, although it does possess an irritant capacity for skin and mucous membranes.. ziram : A dithiocarbamate salt that is the zinc salt of dimethyldithiocarbamic acid. It is a broad-spectrum fungicide and bird and animal repellent that is also used to accelerate the vulcanisation of rubber.	2.1	1	0	dithiocarbamate salt; zinc molecular entity	antifungal agrochemical; apoptosis inducer
n-heptane Heptanes: Seven-carbon alkanes with the formula C7H16.. heptane : A straight-chain alkane with seven carbon atoms. It has been found in Jeffrey pine (Pinus jeffreyi).	2.45	2	0	alkane; volatile organic compound	non-polar solvent; plant metabolite
tetraphenylborate Tetraphenylborate: An anionic compound that is used as a reagent for determination of potassium, ammonium, rubidium, and cesium ions. It also uncouples oxidative phosphorylation and forms complexes with biological materials, and is used in biological assays.	2	1	0
ditiocarb Ditiocarb: A chelating agent that has been used to mobilize toxic metals from the tissues of humans and experimental animals. It is the main metabolite of DISULFIRAM.. diethyldithiocarbamic acid : A member of the class of dithiocarbamic acids that is diethylcarbamic acid in which both of the oxygens are replaced by sulfur.	1.96	1	0	dithiocarbamic acids	chelator; copper chelator
aziridine [no description available]	3.58	9	0	azacycloalkane; aziridines; saturated organic heteromonocyclic parent	alkylating agent
methohexital Methohexital: An intravenous anesthetic with a short duration of action that may be used for induction of anesthesia.. methohexital : A barbiturate, the structure of which is that of barbituric acid substituted at N-1 by a methyl group and at C-5 by allyl and 1-methylpent-2-ynyl groups.	1.95	1	0	acetylenic compound; barbiturates	drug allergen; intravenous anaesthetic
perylene Perylene: A 20-carbon dibenz(de,kl)anthracene that can be viewed as a naphthalene fused to a phenalene or as dinaphthalene. It is used as fluorescent lipid probe in the cytochemistry of membranes and is a polycyclic hydrocarbon pollutant in soil and water. Derivatives may be carcinogenic.. perylene : An ortho- and peri-fused polycyclic arene comprising of five benzene rings that is anthracene in which the d,e and k,l sides are fused to benzene rings.	7.08	1	0	ortho- and peri-fused polycyclic arene; perylenes
quinazolines Quinazolines: A group of aromatic heterocyclic compounds that contain a bicyclic structure with two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring.. quinazoline : A mancude organic heterobicyclic parent that is naphthalene in which the carbon atoms at positions 1 and 3 have been replaced by nitrogen atoms.. quinazolines : Any organic heterobicyclic compound based on a quinazoline skeleton and its substituted derivatives.	2.1	1	0	azaarene; mancude organic heterobicyclic parent; ortho-fused heteroarene; quinazolines
cyclohexene oxide cyclohexene oxide: inhibitor of epoxide hydrase; structure	2.44	2	0
cyclopentane Cyclopentanes: A group of alicyclic hydrocarbons with the general formula R-C5H9.. cyclopentanes : Cyclopentane and its derivatives formed by substitution.	2.93	4	0	cycloalkane; cyclopentanes; volatile organic compound	non-polar solvent
oxazoles Oxazoles: Five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position, in distinction from ISOXAZOLES where they are at the 1,2 positions.. 1,3-oxazole : A five-membered monocyclic heteroarene that is an analogue of cyclopentadiene with O in place of CH2 at position 1 and N in place of CH at position 3.. oxazole : An azole based on a five-membered heterocyclic aromatic skeleton containing one N and one O atom.	2.83	3	0	1,3-oxazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene
thiazoles [no description available]	3.4	7	0	1,3-thiazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene
pyrimidine pyrimidine : The parent compound of the pyrimidines; a diazine having the two nitrogens at the 1- and 3-positions.	6.93	1	0	diazine; pyrimidines	Daphnia magna metabolite
pyrazines Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms.	1.98	1	0	diazine; pyrazines	Daphnia magna metabolite
cyclooctane [no description available]	2.41	1	0
calcium gluconate [no description available]	2.01	1	0	calcium salt	nutraceutical
ephedrine Ephedrine: A phenethylamine found in EPHEDRA SINICA. PSEUDOEPHEDRINE is an isomer. It is an alpha- and beta-adrenergic agonist that may also enhance release of norepinephrine. It has been used for asthma, heart failure, rhinitis, and urinary incontinence, and for its central nervous system stimulatory effects in the treatment of narcolepsy and depression. It has become less extensively used with the advent of more selective agonists.. (-)-ephedrine : A phenethylamine alkaloid that is 2-phenylethanamine substituted by a methyl group at the amino nitrogen and a methyl and a hydroxy group at position 2 and 1 respectively.	1.94	1	0	phenethylamine alkaloid; phenylethanolamines	bacterial metabolite; environmental contaminant; nasal decongestant; plant metabolite; sympathomimetic agent; vasoconstrictor agent; xenobiotic
hydrazine diamine : Any polyamine that contains two amino groups.	1.93	1	0	azane; hydrazines	EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor
perfluorodecalin perfluorodecalin: RN given refers to parent cpd without isomeric designation. perfluorodecalin : A fluorocarbon that is decalin in which every hydrogen is replaced by fluorine. Capable of dissolving large quantities of oxygen, it has been used as the basis of an artificial blood substitute.	2.02	1	0	fluorocarbon	blood substitute; solvent
thymidine monophosphate Thymidine Monophosphate: 5-Thymidylic acid. A thymine nucleotide containing one phosphate group esterified to the deoxyribose moiety.. dTMP : The neutral species of thymidine 5'-monophosphate (2'-deoxythymidine 5'-monophosphate).	1.96	1	0	thymidine 5'-monophosphate	fundamental metabolite
cyanoacetic acid cyanoacetic acid: RN given refers to parent cpd; structure. cyanoacetic acid : A monocarboxylic acid that consists of acetic acid bearing a cyano substituent.	2.07	1	0	monocarboxylic acid
ethylene sulfide [no description available]	8.16	5	0	organosulfur heterocyclic compound; saturated organic heteromonocyclic parent
fluorobenzenes Fluorobenzenes: Derivatives of BENZENE that contain FLUORINE.. monofluorobenzene : The simplest member of the class of monofluorobenzenes that is benzene carrying a single fluoro substituent.. fluorobenzenes : Any fluoroarene that is a benzene or a substituted benzene carrying at least one fluoro group.	1.98	1	0	monofluorobenzenes	NMR chemical shift reference compound
ketene ketene: structure. ketene : Carbonyl compounds where the C=O bond is conjugated to an alkylidene group.	2.11	1	0	ketene
limestone Calcium Carbonate: Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.. calcium carbonate : A calcium salt with formula CCaO3.	1.94	1	0	calcium salt; carbonate salt; inorganic calcium salt; one-carbon compound	antacid; fertilizer; food colouring; food firming agent
glycyrrhetinic acid [no description available]	2.04	1	0	cyclic terpene ketone; hydroxy monocarboxylic acid; pentacyclic triterpenoid	immunomodulator; plant metabolite
caprolactone hexano-6-lactone : A epsilon-lactone that is oxepane substituted by an oxo group at position 2.	2.1	1	0	epsilon-lactone
oxetane oxetane: structure. oxetane : A saturated organic heteromonocyclic parent that is a four-membered ring comprising of three carbon atoms and an oxygen atom.	2.96	4	0	oxetanes; saturated organic heteromonocyclic parent
thiazolidines Thiazolidines: Reduced (protonated) form of THIAZOLES. They can be oxidized to THIAZOLIDINEDIONES.	1.97	1	0	thiazolidine
mustard gas Mustard Gas: Severe irritant and vesicant of skin, eyes, and lungs. It may cause blindness and lethal lung edema and was formerly used as a war gas. The substance has been proposed as a cytostatic and for treatment of psoriasis. It has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP-85-002, 1985) (Merck, 11th ed).. bis(2-chloroethyl) sulfide : An ethyl sulfide that is diethyl sulfide in which a hydrogen from each of the terminal methyl groups is replaced by a chlorine. It is a powerful vesicant regulated under the Chemical Weapons Convention.	3.45	2	0	ethyl sulfide; organochlorine compound	alkylating agent; carcinogenic agent; vesicant
luminol Luminol: 5-Amino-2,3-dihydro-1,4-phthalazinedione. Substance that emits light on oxidation. It is used in chemical determinations.	2.11	1	0
ethylene bromohydrin ethylene bromohydrin: RN given refers to 2-bromo cpd	8.47	8	0
malondialdehyde Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form.	2.67	3	0	dialdehyde	biomarker
bis(chloromethyl) ether Bis(Chloromethyl) Ether: A substance that is an irritant to the eyes and respiratory tract and may be carcinogenic.. bis(chloromethyl) ether : An ether that is dimethyl ether in which one of the hydrogens attached to each of the methyl group has replaced by a chlorine.	3.47	2	0	ether; organochlorine compound	alkylating agent; carcinogenic agent
gentian violet Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.. crystal violet : An organic chloride salt that is the monochloride salt of crystal violet cation. It has been used in creams for the topical treatment of bacterial and fungal infections, being effective against some Gram-positive bacteria (notably Staphylococcus species) and some pathogenic fungi (including Candida species) but use declined following reports of animal carcinogenicity. It has also been used for dying wood, silk, and paper, as well as a histological stain.	2.38	2	0	organic chloride salt	anthelminthic drug; antibacterial agent; antifungal agent; antiseptic drug; histological dye
aminopenicillanic acid aminopenicillanic acid: RN given refers to parent cpd; structure. 6-aminopenicillanic acid : A penicillanic acid compound having a (6R)-amino substituent. The active nucleus common to all penicillins, it may be substituted at the 6-amino position to form the semisynthetic penicillins, resulting in a variety of antibacterial and pharmacologic characteristics.	1.97	1	0	amino acid zwitterion; penicillanic acids	allergen
hematoporphyrin Hematoporphyrins: Iron-free derivatives of heme with 4 methyl groups, 2 hydroxyethyl groups and 2 propionic acid groups attached to the pyrrole rings. Some of these PHOTOSENSITIZING AGENTS are used in the PHOTOTHERAPY of malignant NEOPLASMS.. hematoporphyrin : A dicarboxylic acid that is protoporphyrin in which the vinyl groups at positions 7 and 12 are replaced by 1-hydroxyethyl groups.	1.97	1	0
glycidol glycidol: structure given in first source	2.57	2	0	epoxide; primary alcohol
diepoxybutane diepoxybutane: difunctional alkylating agent; RN given refers to cpd with unspecified isomeric designation; structure	2.41	2	0	epoxide	mutagen
diphenylamine Diphenylamine: In humans it may be irritating to mucous membranes. Methemoglobinemia has been produced experimentally. In veterinary use, it is one of active ingredients in topical agents for prevention and treatment of screwworm infestation. An indicator in tests for nitrate poisoning.. diphenylamine : An aromatic amine containing two phenyl substituents. It has been used as a fungicide for the treatment of superficial scald in apples and pears, but is no longer approved for this purpose within the European Union.	2.1	1	0	aromatic amine; bridged diphenyl fungicide; secondary amino compound	antifungal agrochemical; antioxidant; carotogenesis inhibitor; EC 1.3.99.29 [phytoene desaturase (zeta-carotene-forming)] inhibitor; ferroptosis inhibitor; radical scavenger
vinyl bromide vinyl bromide: structure	7.03	1	0	bromoalkene; monohaloethene
2-anthramine 2-anthramine: structure	2.06	1	0	anthracenamine
2-pyrrolidone 2-pyrrolidone: RN given refers to parent cpd. pyrrolidin-2-one : The simplest member of the class of pyrrolidin-2-ones, consisting of pyrrolidine in which the hydrogens at position 2 are replaced by an oxo group. The lactam arising by the formal intramolecular condensation of the amino and carboxy groups of gamma-aminobutyric acid (GABA).	2.05	1	0	pyrrolidin-2-ones	metabolite; polar solvent
acetylcysteine N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine.	5.09	10	1	acetylcysteine; L-cysteine derivative; N-acetyl-L-amino acid	antidote to paracetamol poisoning; antiinfective agent; antioxidant; antiviral drug; ferroptosis inhibitor; geroprotector; human metabolite; mucolytic; radical scavenger; vulnerary
1,4-cyclohexadiene [no description available]	2.04	1	0	cyclohexadiene
c.i. 42510 Rosaniline Dyes: Compounds that contain the triphenylmethane aniline structure found in rosaniline. Many of them have a characteristic magenta color and are used as COLORING AGENTS.. basic fuchsin : A four-component mixture of chemically related dyes comprising pararosanilin, rosanilin, magenta II and new fuchsin in varying amounts. rosanilin : A hydrochloride that is the monohydrochloride of 4-[(4-aminophenyl)(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]-2-methylaniline. One of the major constituents of Basic fuchsin, together with pararosanilin, magenta II and new fuchsin.	2.44	2	0
erythromycin Erythromycin: A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.. erythromycin : Any of several wide-spectrum macrolide antibiotics obtained from actinomycete Saccharopolyspora erythraea (formerly known as Streptomyces erythraeus).. erythromycin A : An erythromycin that consists of erythronolide A having 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl and 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl residues attahced at positions 4 and 6 respectively.	2.04	1	0	cyclic ketone; erythromycin
2'-deoxy-5'-adenosine monophosphate 2'-deoxy-5'-adenosine monophosphate: RN given refers to parent cpd. 2'-deoxyadenosine 5'-monophosphate : A purine 2'-deoxyribonucleoside 5'-monophosphate having adenine as the nucleobase.	1.96	1	0	2'-deoxyadenosine 5'-phosphate; purine 2'-deoxyribonucleoside 5'-monophosphate	fundamental metabolite
methylnitrosourea Methylnitrosourea: A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.. N-methyl-N-nitrosourea : A member of the class of N-nitrosoureas that is urea in which one of the nitrogens is substituted by methyl and nitroso groups.	1.97	1	0	N-nitrosoureas	alkylating agent; carcinogenic agent; mutagen; teratogenic agent
2-hydroxy-1-naphthaldehyde 2-hydroxynaphthaldehyde: structure in first source. 2-hydroxy-1-naphthaldehyde : A member of the class of naphthaldehydes that is naphthalene-1-carbaldehyde substituted by a hydroxy group at position 2. Active core of sirtinol (CHEBI:73158).	2.13	1	0	naphthaldehydes; naphthols
ethylnitrosourea Ethylnitrosourea: A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.. N-ethyl-N-nitrosourea : A member of the class of N-nitrosoureas that is urea in which one of the nitrogens is substituted by ethyl and nitroso groups.	3.07	5	0	N-nitrosoureas	alkylating agent; carcinogenic agent; genotoxin; mutagen
1,6-hexamethylene diisocyanate hexamethylene diisocyanate : A diisocyanate compound with the two isocyanates linked by a hexane-1,6-diyl group.	1.98	1	0	diisocyanate	allergen; hapten
hydroxyethyl methacrylate hydroxyethyl methacrylate: many of cited refs are for gel which refers to polymeric form of above cpd: POLYHYDROXYETHYL METHACRYLATE. 2-hydroxyethyl methacrylate : An enoate ester that is the monomethacryloyl derivative of ethylene glycol.	7.78	3	0	enoate ester	allergen; polymerisation monomer
3,4-epoxy-1-butene 3,4-epoxy-1-butene: RN given refers to monomer	2.69	3	0
cyclopentenone 2-cyclopenten-1-one : An enone that is cyclopentanone having a C=C double bond at position 2.	1.98	1	0	alicyclic ketone; enone	Hsp70 inducer
deoxycytidine [no description available]	2.38	2	0	pyrimidine 2'-deoxyribonucleoside	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
deoxyuridine [no description available]	7.38	2	0	pyrimidine 2'-deoxyribonucleoside	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
4-(4-nitrobenzyl)pyridine [no description available]	1.97	1	0
n-nitrosodiethanolamine [no description available]	1.98	1	0	nitroso compound
cyclohexamethylene carbamide cyclohexamethylene carbamide: structure	1.93	1	0
durapatite Durapatite: The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.. hydroxylapatite : A phosphate mineral with the formula Ca5(PO4)3(OH).	4.5	5	1
sodium hydroxide Sodium Hydroxide: A highly caustic substance that is used to neutralize acids and make sodium salts. (From Merck Index, 11th ed)	3.07	5	0	alkali metal hydroxide
hydrofluoric acid Hydrofluoric Acid: Hydrofluoric acid. A solution of hydrogen fluoride in water. It is a colorless fuming liquid which can cause painful burns.. hydrogen fluoride : A diatomic molecule containing covalently bonded hydrogen and fluorine atoms.. organofluorine compound : An organofluorine compound is a compound containing at least one carbon-fluorine bond.	2.73	3	0	hydrogen halide; mononuclear parent hydride	NMR chemical shift reference compound
vancomycin Vancomycin: Antibacterial obtained from Streptomyces orientalis. It is a glycopeptide related to RISTOCETIN that inhibits bacterial cell wall assembly and is toxic to kidneys and the inner ear.. vancomycin : A complex glycopeptide from Streptomyces orientalis. It inhibits a specific step in the synthesis of the peptidoglycan layer in the Gram-positive bacteria Staphylococcus aureus and Clostridium difficile.	7.49	2	0	glycopeptide	antibacterial drug; antimicrobial agent; bacterial metabolite
d-alpha tocopherol Vitamin E: A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of ISOPRENOIDS.. tocopherol : A collective name for a group of closely related lipids that contain a chroman-6-ol nucleus substituted at position 2 by a methyl group and by a saturated hydrocarbon chain consisting of three isoprenoid units. They are designated as alpha-, beta-, gamma-, and delta-tocopherol depending on the number and position of additional methyl substituents on the aromatic ring. Tocopherols occur in vegetable oils and vegetable oil products, almost exclusively with R,R,R configuration. Tocotrienols differ from tocopherols only in having three double bonds in the hydrocarbon chain.. vitamin E : Any member of a group of fat-soluble chromanols that exhibit biological activity against vitamin E deficiency. The vitamers in this class consists of a chroman-6-ol core which is substituted at position 2 by a methyl group and (also at position 2) either a saturated or a triply-unsaturated hydrocarbon chain consisting of three isoprenoid units. The major function of vitamin E is to act as a natural antioxidant by scavenging free radicals and molecular oxygen.. (R,R,R)-alpha-tocopherol : An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils.	3.04	1	0	alpha-tocopherol	algal metabolite; antiatherogenic agent; anticoagulant; antioxidant; antiviral agent; EC 2.7.11.13 (protein kinase C) inhibitor; immunomodulator; micronutrient; nutraceutical; plant metabolite
propanidid Propanidid: An intravenous anesthetic that has been used for rapid induction of anesthesia and for maintenance of anesthesia of short duration. (From Martindale, The Extra Pharmacopoeia, 30th ed, p918)	2.36	2	0	methoxybenzenes
bisphenol a-glycidyl methacrylate Bisphenol A-Glycidyl Methacrylate: The reaction product of bisphenol A and glycidyl methacrylate that undergoes polymerization when exposed to ultraviolet light or mixed with a catalyst. It is used as a bond implant material and as the resin component of dental sealants and composite restorative materials.	3.18	5	0	diarylmethane
ethyldimethylaminopropyl carbodiimide Ethyldimethylaminopropyl Carbodiimide: Carbodiimide cross-linking reagent.	1.99	1	0
tetrabutylammonium tetrabutylammonium: lipophilic probe; RN given refers to parent cpd	2.01	1	0	quaternary ammonium ion
dronabinol Dronabinol: A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound.. Delta(9)-tetrahydrocannabinol : A diterpenoid that is 6a,7,8,10a-tetrahydro-6H-benzo[c]chromene substituted at position 1 by a hydroxy group, positions 6, 6 and 9 by methyl groups and at position 3 by a pentyl group. The principal psychoactive constituent of the cannabis plant, it is used for treatment of anorexia associated with AIDS as well as nausea and vomiting associated with cancer chemotherapy.	2.31	1	0	benzochromene; diterpenoid; phytocannabinoid; polyketide	cannabinoid receptor agonist; epitope; hallucinogen; metabolite; non-narcotic analgesic
n-isopropylacrylamide N-isopropylacrylamide: can polymerize with glycidyl acrylate to form reactive water-soluble polymer that can react with the amino groups of enzymes-proteins or other ligands	2.05	1	0
troclosene [no description available]	2.03	1	0
fluorescein Fluorescein: A phthalic indicator dye that appears yellow-green in normal tear film and bright green in a more alkaline medium such as the aqueous humor.. fluorescein (lactone form) : A xanthene dye that is highly fluorescent, detectable even when present in minute quantities. Used forensically to detect traces of blood, in analytical chemistry as an indicator in silver nitrate titrations and in microscopy.	2.03	1	0	2-benzofurans; gamma-lactone; organic heteropentacyclic compound; oxaspiro compound; polyphenol; xanthene dye	fluorescent dye; radioopaque medium
methylprednisolone hemisuccinate Methylprednisolone Hemisuccinate: A water-soluble ester of METHYLPREDNISOLONE used for cardiac, allergic, and hypoxic emergencies.	2.17	1	0	corticosteroid hormone; hemisuccinate
sulfur hexafluoride Sulfur Hexafluoride: Sulfur hexafluoride. An inert gas used mainly as a test gas in respiratory physiology. Other uses include its injection in vitreoretinal surgery to restore the vitreous chamber and as a tracer in monitoring the dispersion and deposition of air pollutants.. sulfur hexafluoride : A sulfur coordination entity consisting of six fluorine atoms attached to a central sulfur atom. It is the most potent greenhouse gas currently known, with a global warming potential of 23,900 times that of CO2 over a 100 year period (SF6 has an estimated lifetime in the atmosphere of between 800 and 3,000 years).	2.04	1	0	sulfur coordination entity	greenhouse gas; NMR chemical shift reference compound; ultrasound contrast agent
sulfuryl fluoride sulfuryl fluoride: fumigant	7.03	1	0	sulfuryl halide	fumigant insecticide
toliprolol toliprolol: was MH 1975-92 (see under PROPANOLAMINES 1981-90, was DOBEROL see under PROPANOLAMINES 1975-80); KOE 592 was see TOLIPROLOL 1975-92; use PROPANOLAMINES to search TOLIPROLOL 1975-92; beta adrenergic blockader with some stimulant action; it has been proposed for angina pectoris	2.04	1	0	aromatic ether
4-dioxanone 4-dioxanone: starting material for polymer polydioxanone which is used as a suture material	2.08	1	0
dicloxacillin Dicloxacillin: One of the PENICILLINS which is resistant to PENICILLINASE.. dicloxacillin : A penicillin that is 6-aminopenicillanic acid in which one of the amino hydrogens is replaced by a 3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazol-4-yl]formyl group.	2.04	1	0	dichlorobenzene; penicillin	antibacterial drug
mannose mannopyranose : The pyranose form of mannose.	2.38	2	0	D-aldohexose; D-mannose; mannopyranose	metabolite
dithiothreitol 1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol.	1.97	1	0	1,4-dimercaptobutane-2,3-diol; butanediols; dithiol; glycol; thiol	chelator; human metabolite; reducing agent
dimethyl trisulfide [no description available]	2.05	1	0	organic trisulfide
streptomycin [no description available]	7.63	3	0	antibiotic antifungal drug; antibiotic fungicide; streptomycins	antibacterial drug; antifungal agrochemical; antimicrobial agent; antimicrobial drug; bacterial metabolite; protein synthesis inhibitor
carbonates Carbonates: Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed). carbonates : Organooxygen compounds that are salts or esters of carbonic acid, H2CO3.	3.84	3	0	carbon oxoanion
2-cyanoethylene oxide 2-cyanoethylene oxide: acrylonitrile metabolite; structure in first source	4.69	29	0
acetoxyacetylaminofluorene Acetoxyacetylaminofluorene: An alkylating agent that forms DNA ADDUCTS at the C-8 position in GUANINE, resulting in single strand breaks. It has demonstrated carcinogenic action.. N-acetoxy-2-acetamidofluorene : A 2-acetamidofluorene compound in which the parent 2-acetamidofluorene is substituted on nitrogen by an acetoxy group.	2.37	2	0	2-acetamidofluorenes	carcinogenic agent; mutagen
enbucrilate Enbucrilate: A tissue adhesive that is applied as a monomer to moist tissue and polymerizes to form a bond. It is slowly biodegradable and used in all kinds of surgery, including dental.	2.43	2	0	alpha,beta-unsaturated monocarboxylic acid; nitrile
sodium metasilicate sodium metasilicate: RN given refers to silicic acid, di-Na salt. sodium silicate : An inorganic sodium salt having silicate as the counterion.	2.06	1	0	inorganic sodium salt
iridium Iridium: A metallic element with the atomic symbol Ir, atomic number 77, and atomic weight 192.22.	2.11	1	0	cobalt group element atom; platinum group metal atom
mercury Mercury: A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.. mercury(0) : Elemental mercury of oxidation state zero.	4.3	6	0	elemental mercury; zinc group element atom	neurotoxin
molybdenum Molybdenum: A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.95. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase.	2.05	1	0	chromium group element atom	micronutrient
neon Neon: A noble gas with the atomic symbol Ne, atomic number 10, and atomic weight 20.18. It is found in the earth's crust and atmosphere as an inert, odorless gas and is used in vacuum tubes and incandescent lamps.	2.07	1	0	monoatomic neon; noble gas atom; p-block element atom
niobium Niobium: A metal element atomic number 41, atomic weight 92.906, symbol Nb.	2.05	1	0	vanadium group element atom
palladium Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46.	3.86	3	0	metal allergen; nickel group element atom; platinum group metal atom
platinum Platinum: A heavy, soft, whitish metal, resembling tin, with atomic number 78, atomic weight 195.084, symbol Pt. It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as alutiae.	2.05	1	0	elemental platinum; nickel group element atom; platinum group metal atom
ruthenium Ruthenium: A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101.07. It is used as a catalyst and hardener for PLATINUM and PALLADIUM.	2.02	1	0	iron group element atom; platinum group metal atom
scandium Scandium: An element of the rare earth family of metals. It has the atomic symbol Sc, atomic number 21, and atomic weight 45.	2.1	1	0	d-block element atom; rare earth metal atom; scandium group element atom
silver Silver: An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA.	8.14	5	0	copper group element atom; elemental silver	Escherichia coli metabolite
technetium Technetium: The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.	1.97	1	0	manganese group element atom
titanium Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures.	4.65	8	0	titanium group element atom
tungsten Tungsten: A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.	1.97	1	0	chromium group element atom	micronutrient
argon Argon: A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.	2.7	3	0	monoatomic argon; noble gas atom; p-block element atom	food packaging gas; neuroprotective agent
chromium Chromium: A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.. chromium ion : An chromium atom having a net electric charge.. chromium atom : A chromium group element atom that has atomic number 24.	2.73	3	0	chromium group element atom; metal allergen	micronutrient
gold Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.	3.67	9	0	copper group element atom; elemental gold
helium Helium: A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics.	2.37	2	0	monoatomic helium; noble gas atom; s-block element atom	food packaging gas
yttrium Yttrium: An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers.	2.02	1	0	d-block element atom; rare earth metal atom; scandium group element atom
zirconium Zirconium: A rather rare metallic element with atomic number 40, atomic weight 91.224, and symbol Zr.	5.02	9	1	titanium group element atom
hypochlorous acid Hypochlorous Acid: An oxyacid of chlorine (HClO) containing monovalent chlorine that acts as an oxidizing or reducing agent.. hypochlorous acid : A chlorine oxoacid with formula HOCl; a weak, unstable acid, it is the active form of chlorine in water.	1.95	1	0	chlorine oxoacid; reactive oxygen species	EC 2.5.1.18 (glutathione transferase) inhibitor; EC 3.1.1.7 (acetylcholinesterase) inhibitor; human metabolite
camptothecin NSC 100880: carboxylate (opened lactone) form of camptothecin; RN refers to (S)-isomer; structure given in first source	2.4	2	0	delta-lactone; pyranoindolizinoquinoline; quinoline alkaloid; tertiary alcohol	antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor; genotoxin; plant metabolite
ferric chloride ferric chloride: RN given refers to cpd with MF of Fe-Cl3; used to induce experimental arterial thrombosis to evaluate antithrombotic agents	1.96	1	0	iron coordination entity	astringent; Lewis acid
phosphine phosphane : The simplest phosphine, consisting of a single phosphorus atom with three hydrogens attached.. phosphine : Phosphane (PH3) and compounds derived from it by substituting one, two or three hydrogen atoms by hydrocarbyl groups: RPH2, R2PH, R3P (R =/= H) are called primary, secondary and tertiary phosphines, respectively. A specific phosphine is preferably named as a substituted phosphane.	2.5	2	0	mononuclear parent hydride; phosphanes; phosphine	carcinogenic agent; fumigant insecticide
bromine Bromine: A halogen with the atomic symbol Br, atomic number 35, and atomic weight 79.904. It is a volatile reddish-brown liquid that gives off suffocating vapors, is corrosive to the skin, and may cause severe gastroenteritis if ingested.	3.04	5	0	diatomic bromine
s-methylcysteine S-methylcysteine: RN given refers to parent cpd without isomeric designation. S-methylcysteine : A cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group.	1.96	1	0	S-alkyl-L-cysteine zwitterion; S-alkyl-L-cysteine	human urinary metabolite; plant metabolite
chromic acid [no description available]	6.97	1	0	chromium oxoacid	oxidising agent
chromates Chromates: Salts of chromic acid containing the CrO(2-)4 radical.. chromate(2-) : A chromium oxoanion resulting from the removal of two protons from chromic acid.	1.97	1	0	chromium oxoanion; divalent inorganic anion	oxidising agent
copper sulfate Copper Sulfate: A sulfate salt of copper. It is a potent emetic and is used as an antidote for poisoning by phosphorus. It also can be used to prevent the growth of algae.. copper(II) sulfate : A metal sulfate compound having copper(2+) as the metal ion.	2.07	1	0	metal sulfate	emetic; fertilizer; sensitiser
chloroethylene oxide chloroethylene oxide: postulated metabolite of vinyl chloride; structure	6.32	30	0	organochlorine compound
calcium sulfate Calcium Sulfate: A calcium salt that is used for a variety of purposes including: building materials, as a desiccant, in dentistry as an impression material, cast, or die, and in medicine for immobilizing casts and as a tablet excipient. It exists in various forms and states of hydration. Plaster of Paris is a mixture of powdered and heat-treated gypsum.	1.94	1	0	calcium salt; inorganic calcium salt
potassium dichromate Potassium Dichromate: Chromic acid (H2Cr2O7), dipotassium salt. A compound having bright orange-red crystals and used in dyeing, staining, tanning leather, as bleach, oxidizer, depolarizer for dry cells, etc. Medically it has been used externally as an astringent, antiseptic, and caustic. When taken internally, it is a corrosive poison.. potassium dichromate : A potassium salt that is the dipotassium salt of dichromic acid.	1.93	1	0	potassium salt	allergen; oxidising agent; sensitiser
deuterium Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.	2.72	3	0	dihydrogen
fluorine Fluorine: A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries.	2.37	2	0	diatomic fluorine; gas molecular entity	NMR chemical shift reference compound
chlorine Chlorine: An element with atomic symbol Cl, atomic number 17, and atomic weight 35, and member of the halogen family.	4.92	12	0	diatomic chlorine; gas molecular entity	bleaching agent
phenmedipham phenmedipham: minor descriptor (72-84); on-line search CARBAMATES (72-84); Index Medicus search HERBICIDES, CARBAMATE (75-84), CARBAMATES (72-75). phenmedipham : A carbamate ester that is (3-methylphenyl)carbamic acid in which the hydrogen of the hydroxy group has been replaced by a 3-[(methoxycarbonyl)amino]phenyl group.	2.01	1	0	carbamate ester	environmental contaminant; herbicide; xenobiotic
galactose aldohexose : A hexose with a (potential) aldehyde group at one end.	2.64	3	0
ozone Ozone: The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).. ozone : An elemental molecule with formula O3. An explosive, pale blue gas (b.p. -112degreeC) that has a characteristic, pungent odour, it is continuously produced in the upper atmosphere by the action of solar ultraviolet radiation on atmospheric oxygen. It is an antimicrobial agent used in the production of bottled water, as well as in the treatment of meat, poultry and other foodstuffs.	4.68	9	0	elemental molecule; gas molecular entity; reactive oxygen species; triatomic oxygen	antiseptic drug; disinfectant; electrophilic reagent; greenhouse gas; mutagen; oxidising agent; tracer
4-chloro-7-nitrobenzofurazan 4-Chloro-7-nitrobenzofurazan: A benzofuran derivative used as a protein reagent since the terminal N-NBD-protein conjugate possesses interesting fluorescence and spectral properties. It has also been used as a covalent inhibitor of both beef heart mitochondrial ATPase and bacterial ATPase.. 4-chloro-7-nitrobenzofurazan : A benzoxadiazole that is 2,1,3-benzoxadiazole which is substituted at position 4 by chlorine and at position 7 by a nitro group.	2.05	1	0	benzoxadiazole; C-nitro compound; organochlorine compound	EC 1.4.3.4 (monoamine oxidase) inhibitor; EC 3.6.1.3 (adenosinetriphosphatase) inhibitor; fluorescent probe; fluorochrome
ammonium chloride Ammonium Chloride: An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.. ammonium chloride : An inorganic chloride having ammonium as the counterion.	1.94	1	0	ammonium salt; inorganic chloride	ferroptosis inhibitor
titanium dioxide titanium dioxide: used medically as protectant against externally caused irritation & sunlight; high concentrations of dust may cause irritation to respiratory tract; RN given refers to titanium oxide (TiO2); structure. titanium dioxide : A titanium oxide with the formula TiO2. A naturally occurring oxide sourced from ilmenite, rutile and anatase, it has a wide range of applications.	2.41	2	0	titanium oxides	food colouring
salen disalicylaldehyde ethylenediamine: reagents for determination of iron	7.08	1	0
tiletamine hydrochloride Cyclohexanones: Cyclohexane ring substituted by one or more ketones in any position.. cyclohexanones : Any alicyclic ketone based on a cyclohexane skeleton and its substituted derivatives thereof.	2.44	2	0
tetradecanoylphorbol acetate Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.. phorbol ester : Esters of phorbol, originally found in croton oil (from Croton tiglium, of the family Euphorbiaceae). A number of phorbol esters possess activity as tumour promoters and activate the mechanisms associated with cell growth. Some of these are used in experiments as activators of protein kinase C.. phorbol 13-acetate 12-myristate : A phorbol ester that is phorbol in which the hydroxy groups at the cyclopropane ring juction (position 13) and the adjacent carbon (position 12) have been converted into the corresponding acetate and myristate esters. It is a major active constituent of the seed oil of Croton tiglium. It has been used as a tumour promoting agent for skin carcinogenesis in rodents and is associated with increased cell proliferation of malignant cells. However its function is controversial since a decrease in cell proliferation has also been observed in several cancer cell types.	2.66	3	0	acetate ester; diester; phorbol ester; tertiary alpha-hydroxy ketone; tetradecanoate ester	antineoplastic agent; apoptosis inducer; carcinogenic agent; mitogen; plant metabolite; protein kinase C agonist; reactive oxygen species generator
fluorides [no description available]	2.39	2	0	halide anion; monoatomic fluorine
danazol Danazol: A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders.	2.17	1	0	17beta-hydroxy steroid; terminal acetylenic compound	anti-estrogen; estrogen antagonist; geroprotector
chromium chromium hexavalent ion: a human respiratory carcinogen	2.13	1	0	chromium cation; monoatomic hexacation
daunorubicin Daunorubicin: A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.. anthracycline : Anthracyclines are polyketides that have a tetrahydronaphthacenedione ring structure attached by a glycosidic linkage to the amino sugar daunosamine.. daunorubicin : A natural product found in Actinomadura roseola.	2.01	1	0	aminoglycoside antibiotic; anthracycline; p-quinones; tetracenequinones	antineoplastic agent; bacterial metabolite
phenylglycidyl ether phenylglycidyl ether: structure	2.03	1	0	aromatic ether
phenyl acetate phenyl acetate: The ester formed between phenol and acetic acid. Don't confuse with phenylacetic acid derivatives listed under PHENYLACETATES.. phenyl acetate : An acetate ester obtained by the formal condensation of phenol with acetic acid.	4.85	11	0	benzenes; phenyl acetates
1,4-dioxane 1,4-dioxane: dehydrating agent; polar solvent miscible both with water & most organic solvents. dioxane : Any member of the class of dioxanes that is a cyclohexane in which two carbon atoms are replaced by oxygen atoms.. 1,4-dioxane : A dioxane with oxygen atoms at positions 1 and 4.	3.06	5	0	dioxane; volatile organic compound	carcinogenic agent; metabolite; NMR chemical shift reference compound; non-polar solvent
chloroprene Chloroprene: Toxic, possibly carcinogenic, monomer of neoprene, a synthetic rubber; causes damage to skin, lungs, CNS, kidneys, liver, blood cells and fetuses. Synonym: 2-chlorobutadiene.	3.4	7	0	chloroolefin
tetrachloroethylene Tetrachloroethylene: A chlorinated hydrocarbon used as an industrial solvent and cooling liquid in electrical transformers. It is a potential carcinogen.	2.38	2	0	chlorocarbon; chloroethenes	nephrotoxic agent
dimethylacetamide hallucinogen : Drugs capable of inducing illusions, hallucinations, delusions, paranoid ideations and other alterations of mood and thinking.. N,N-dimethylacetamide : A member of the class of acetamides that is acetamide in which the hydrogens attached to the N atom have been replaced by two methyl groups respectively. Metabolite observed in cancer metabolism.	1.96	1	0	acetamides; monocarboxylic acid amide	human metabolite
pyrene pyrene: structure in Merck Index, 9th ed, #7746. pyrene : An ortho- and peri-fused polycyclic arene consisting of four fused benzene rings, resulting in a flat aromatic system.	2.04	1	0	ortho- and peri-fused polycyclic arene	fluorescent probe; persistent organic pollutant
4-methoxyamphetamine 4-methoxyamphetamine: para-methoxy derivative to amphetamine with hallucinogenic properties; minor descriptor (75-86); on line & INDEX MEDICUS search AMPHETAMINES (75-86); RN given refers to parent compound without isomeric designation	1.93	1	0
transferrin Transferrin: An iron-binding beta1-globulin that is synthesized in the LIVER and secreted into the blood. It plays a central role in the transport of IRON throughout the circulation. A variety of transferrin isoforms exist in humans, including some that are considered markers for specific disease states.	2.38	2	0
alkenes [no description available]	4.3	19	0
cefazolin Cefazolin: A semisynthetic cephalosporin analog with broad-spectrum antibiotic action due to inhibition of bacterial cell wall synthesis. It attains high serum levels and is excreted quickly via the urine.. cefazolin : A first-generation cephalosporin compound having [(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl and (1H-tetrazol-1-ylacetyl)amino side-groups at positions 3 and 7 respectively.	2.04	1	0	beta-lactam antibiotic allergen; cephalosporin; tetrazoles; thiadiazoles	antibacterial drug
sodium azide Sodium Azide: A cytochrome oxidase inhibitor which is a nitridizing agent and an inhibitor of terminal oxidation. (From Merck Index, 12th ed). sodium azide : The sodium salt of hydrogen azide (hydrazoic acid).	2.51	2	0	inorganic sodium salt	antibacterial agent; explosive; mitochondrial respiratory-chain inhibitor; mutagen
azides Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3.	3.3	6	0	pseudohalide anion	mitochondrial respiratory-chain inhibitor
timolol (S)-timolol (anhydrous) : The (S)-(-) (more active) enantiomer of timolol. A beta-adrenergic antagonist, both the hemihydrate and the maleate salt are used in the mangement of glaucoma, hypertension, angina pectoris and myocardial infarction, and for the prevention of migraine.	2.04	1	0	timolol	anti-arrhythmia drug; antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist
zidovudine Zidovudine: A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by an azido group. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA during reverse transcription. It improves immunologic function, partially reverses the HIV-induced neurological dysfunction, and improves certain other clinical abnormalities associated with AIDS. Its principal toxic effect is dose-dependent suppression of bone marrow, resulting in anemia and leukopenia.. zidovudine : A pyrimidine 2',3'-dideoxyribonucleoside compound having a 3'-azido substituent and thymine as the nucleobase.	7.06	1	0	azide; pyrimidine 2',3'-dideoxyribonucleoside	antimetabolite; antiviral drug; HIV-1 reverse transcriptase inhibitor
etofenamate etofenamate: structure	1.96	1	0	benzoate ester
paclitaxel Taxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL).	4.52	7	0	taxane diterpenoid; tetracyclic diterpenoid	antineoplastic agent; human metabolite; metabolite; microtubule-stabilising agent
etoposide [no description available]	2.45	2	0	beta-D-glucoside; furonaphthodioxole; organic heterotetracyclic compound	antineoplastic agent; DNA synthesis inhibitor
miloxacin miloxacin: structure in second source	2.04	1	0	quinolines
amikacin Amikacin: A broad-spectrum antibiotic derived from KANAMYCIN. It is reno- and oto-toxic like the other aminoglycoside antibiotics.. amikacin : An amino cyclitol glycoside that is kanamycin A acylated at the N-1 position by a 4-amino-2-hydroxybutyryl group.	2	1	0	alpha-D-glucoside; amino cyclitol glycoside; aminoglycoside; carboxamide	antibacterial drug; antimicrobial agent; nephrotoxin
chlorodiphenyl (54% chlorine) Chlorodiphenyl (54% Chlorine): A mixture of polychlorinated biphenyls that induces hepatic microsomal UDP-glucuronyl transferase activity towards thyroxine.. Aroclor 1254 : A mixture of polychlorobiphenyls of unspecified composition, containing 54% chlorine (X = Cl or H).	1.96	1	0
7,8-dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide: 7,8,8a,9a-Tetrahydrobenzo(10,11)chryseno (3,4-b)oxirene-7,8-diol. A benzopyrene derivative with carcinogenic and mutagenic activity.	1.97	1	0	epoxide	intercalator
indacrinone indacrinone: polyvalent saluretic; RN given refers to parent cpd without isomeric designation; structure	2.05	1	0
alfentanil Alfentanil: A short-acting opioid anesthetic and analgesic derivative of FENTANYL. It produces an early peak analgesic effect and fast recovery of consciousness. Alfentanil is effective as an anesthetic during surgery, for supplementation of analgesia during surgical procedures, and as an analgesic for critically ill patients.. alfentanil : A member of the class of piperidines that is piperidine having a 2-(4-ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl group at the 1-position as well as N-phenylpropanamido- and methoxymethyl groups at the 4-position.	2.04	1	0	monocarboxylic acid amide; piperidines	central nervous system depressant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic; peripheral nervous system drug
fomesafen fomesafen: a protoporphyrinogen oxidase-inhibiting herbicide. fomesafen : An N-sulfonylcarboxamide that is N-(methylsulfonyl)benzamide in which the phenyl ring is substituted by a nitro group at position 2 and a 2-chloro-4-(trifluoromethyl)phenoxy group at position 5. A protoporphyrinogen oxidase inhibitor, it was specially developed for use (generally as the corresponding sodium salt, fomesafen-sodium) for post-emergence control of broad-leaf weeds in soya.	1.97	1	0	aromatic ether; C-nitro compound; monochlorobenzenes; N-sulfonylcarboxamide; organofluorine compound; phenols	agrochemical; EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor; herbicide
zami 1305 ZAMI 1305: structure given in first source	1.97	1	0
dimethylhydrazines Dimethylhydrazines: Hydrazines substituted with two methyl groups in any position.	1.93	1	0
potassium phosphate potassium phosphate: used in dental materials and to treat hypophosphatemia; RN given refers to cpd with unspecified MF. tripotassium phosphate : An inorganic potassium salt that is the tripotassium salt of phosphoric acid.	7.08	1	0	inorganic phosphate salt; inorganic potassium salt
trazodone hydrochloride Triticum: A plant genus of the family POACEAE that is the source of EDIBLE GRAIN. A hybrid with rye (SECALE CEREALE) is called TRITICALE. The seed is ground into FLOUR and used to make BREAD, and is the source of WHEAT GERM AGGLUTININS.. trazodone hydrochloride : A hydrochloride salt prepared from equimolar amounts of trazodone and hydrogen chloride.	3.07	5	0	hydrochloride	adrenergic antagonist; antidepressant; H1-receptor antagonist; sedative; serotonin uptake inhibitor
glucose, (beta-d)-isomer beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages.	2.73	3	0	D-glucopyranose	epitope; mouse metabolite
thiazolyl blue thiazolyl blue: RN & II refers to bromide. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide : The bromide salt of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium.	2.94	4	0	organic bromide salt	colorimetric reagent; dye
5-methylcytosine 5-Methylcytosine: A methylated nucleotide base found in eukaryotic DNA. In ANIMALS, the DNA METHYLATION of CYTOSINE to form 5-methylcytosine is found primarily in the palindromic sequence CpG. In PLANTS, the methylated sequence is CpNpGp, where N can be any base.. 5-methylcytosine : A pyrimidine that is a derivative of cytosine, having a methyl group at the 5-position.	1.96	1	0	methylcytosine; pyrimidines	human metabolite
1,2-dipalmitoyl-3-phosphatidylethanolamine 1,2-dipalmitoyl-3-phosphatidylethanolamine: RN given refers to parent cpd without isomeric designation	1.98	1	0
2-oxothiazolidine-4-carboxylic acid 2-oxothiazolidine-4-carboxylic acid: analog of 5-oxoproline in which the 4-methylene moiety is replaced by sulfur; acts as 5-oxo-L-prolinase substrate; structure in first source; RN given refers to parent cpd without isomeric designation; Procysteine is a trade name	6.97	1	0
glutathione disulfide Glutathione Disulfide: A GLUTATHIONE dimer formed by a disulfide bond between the cysteine sulfhydryl side chains during the course of being oxidized.	7.11	1	0	glutathione derivative; organic disulfide	Escherichia coli metabolite; mouse metabolite
inaperisone inaperisone: structure given in first source; RN given refers to parent cpd without isomeric designation	2.04	1	0	aromatic ketone
peroxyformic acid peroxyformic acid: structure	2.1	1	0
silicon monoxide silanone: structure in first source	2.06	1	0	silicon oxide
4-phenylbenzoic acid 4-phenylbenzoic acid: RN given refers to 4-carboxylic cpd	2.04	1	0
triazoles Triazoles: Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3.. triazoles : An azole in which the five-membered heterocyclic aromatic skeleton contains three N atoms and two C atoms.	2.31	1	0	1,2,3-triazole
2,3-dihydrofuran dihydrofuran : Compounds containing a mono-unsaturated furan ring skeleton.	2.04	1	0	dihydrofuran
diphenic anhydride diphenic anhydride: structure given in first source	2.06	1	0
nicosulfuron nicosulfuron: inhibits ACETOLACTATE SYNTHASE; Accent is DuPont brand name. nicosulfuron : A N-sulfonylurea that is 2-(carbamoylsulfamoyl)-N,N-dimethylpyridine-3-carboxamide substituted by a 4,6-dimethoxypyrimidin-2-yl group at the amino nitrogen.	2.1	1	0	N-sulfonylurea; pyridines; pyrimidines	environmental contaminant; herbicide; xenobiotic
2,2'-dipicolylamine 2,2'-dipicolylamine: structure in first source	2.06	1	0
2-aminoethylmethacrylate aminoethyl methacrylate: cell-adhesive dextran hydrogel	2.07	1	0	enoate ester
octadecyl palmitate octadecyl palmitate: found in psoriatic nail, but not in normal nails. stearyl palmitate : A palmitate ester resulting from the formal condensation of the carboxy group of palmitic acid with the hydroxy group of stearyl alcohol.	1.94	1	0	hexadecanoate ester; wax ester	coral metabolite; cosmetic
furfuryl methacrylate furfuryl methacrylate: a hydrophobic monomer; can be prepared from vegetable residues such as corn husks and sugar cane	2.6	1	0
1-methylcytosine 1-methylcytosine: RN given refers to parent cpd. 1-methylcytosine : A pyrimidone that is cytosine in which the hydrogen attached to the nitrogen at position 1 is substituted by a methyl group.	6.94	1	0	aminopyrimidine; methylcytosine; pyrimidone	metabolite
n-hydroxysuccinimide N-hydroxysuccinimide: structure	2.42	2	0
lithium bromide lithium bromide: denatures ribonuclease A; also sedative. lithium bromide : A lithium salt in which the counterion is bromide. The anhydrous salt forms cubic crystals similar to common salt.	2.02	1	0	bromide salt; lithium salt
1-(2-hydroxyethyl)-1-nitrosourea 1-(2-hydroxyethyl)-1-nitrosourea: structure	2.68	3	0
daunomycinone daunomycinone: the aglycone of daunomycin; structure	2.01	1	0
bromates Bromates: Negative ions or salts derived from bromic acid, HBrO3.	3.04	1	0	bromine oxoanion; monovalent inorganic anion
coenzyme a [no description available]	1.98	1	0	adenosine 3',5'-bisphosphate	coenzyme; Escherichia coli metabolite; mouse metabolite
nicotine (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum.	2.37	2	0	3-(1-methylpyrrolidin-2-yl)pyridine	anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic
2,2-bis-(4-(2-methacryloxyethoxy)phenyl)propane 2,2-bis-(4-(2-methacryloxyethoxy)phenyl)propane: structure given in first source	2.04	1	0
fibrinogen Fibrinogen: Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products.. D-iditol : The D-enantiomer of iditol.	3.51	8	0	iditol	fungal metabolite
glycidamide glycidamide: metabolite of acrylamide; structure given in first source	3.34	6	0
diploptene diploptene: biosynthesized in a cell-free system from Acetobacter pasteurianum in the presence of squalene. hop-22(29)-ene : A triterpene consisting of hopane having a C=C double bond at the 22(29)-position.	2.03	1	0	triterpene
glucuronic acid Glucuronic Acid: A sugar acid formed by the oxidation of the C-6 carbon of GLUCOSE. In addition to being a key intermediate metabolite of the uronic acid pathway, glucuronic acid also plays a role in the detoxification of certain drugs and toxins by conjugating with them to form GLUCURONIDES.. D-glucuronic acid : The D-enantiomer of glucuronic acid.. D-glucopyranuronic acid : A D-glucuronic acid in cyclic pyranose form.	2.47	2	0	D-glucuronic acid	algal metabolite
1,2-distearoylphosphatidylethanolamine 1,2-distearoylphosphatidylethanolamine: RN given refers to cpd without isomeric designation. 1,2-distearoylphosphatidylethanolamine : A phosphatidylethanolamine in which the phosphatidyl acyl group at C-1 and C-2 is stearoyl.	2.39	2	0	phosphatidylethanolamine zwitterion; phosphatidylethanolamine	human metabolite
cobalt Cobalt: A trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.. cobalt(1+) : A monovalent inorganic cation obtained from cobalt.. cobalt atom : A cobalt group element atom that has atomic number 27.	8.13	5	0	cobalt group element atom; metal allergen	micronutrient
cremophor el cremophor EL: solvent for Althesin & Propanidid implicated as possible cause of similar adverse effects polyethoxylated castor oil; RN given refers to cpd with unknown MF; see also records for cremophor & cremophor A	2.66	3	0
1,n(6)-ethenoadenine 1,N(6)-ethenoadenine: biologically active fluorescent derivatives of this cpd potentially valuable in studies concerning interactions between adenine cpds & various enzymes for which they serve as substrates or co-factors; structure	3.77	3	0	imidazo[2,1-i]purine	mutagen
cyanates Cyanates: Organic salts of cyanic acid containing the -OCN radical.. cyanates : Salts and esters of cyanic acid, HOC#N; compounds carrying the cyanate functional group -O-C#N.. isocyanates : Organonitrogen compounds that are derivatives of isocyanic acid; compounds containing the isocyanate functional group -N=C=O (as opposed to the cyanate group, -O-C#N).	3.23	6	0
1,n(6)-ethenodeoxyadenosine [no description available]	1.99	1	0	purines
3,n(4)-ethenodeoxycytidine [no description available]	1.99	1	0
phosphites Phosphites: Inorganic salts or organic esters of phosphorous acid that contain the (3-)PO3 radical. (From Grant & Hackh's Chemical Dictionary, 5th ed). phosphite(3-) : A trivalent inorganic anion obtained by removal of all three protons from phosphorous acid.	2.41	2	0	phosphite ion; trivalent inorganic anion
2-hydroxyethylvaline 2-hydroxyethylvaline: RN given refers to (DL)-isomer; RN for cpd without isomeric designation not available 11/88	7.86	24	1
n-acetyl-s-(2-hydroxyethyl)cysteine N-acetyl-S-(2-hydroxyethyl)cysteine: RN given refers to cpd without isomeric designation	2.66	3	0	N-acyl-amino acid
vinyl carbamate epoxide vinyl carbamate epoxide: structure given in first source	2.25	1	0
deoxyglucose Deoxyglucose: 2-Deoxy-D-arabino-hexose. An antimetabolite of glucose with antiviral activity.. deoxyglucose : A deoxyhexose comprising glucose having at least one hydroxy group replaced by hydrogen.	2.02	1	0
n-acetyl-s-(2-cyanoethyl)cysteine N-acetyl-S-(2-cyanoethyl)cysteine: major urinary metabolite of acrylonitrile; structure in first source	2.07	1	0	N-acyl-L-amino acid
dodecyl-beta-d-maltoside dodecyl beta-D-maltoside : A glycoside resulting from attachment of a dodecyl group to the reducing-end anomeric centre of a beta-maltose molecule.	2.07	1	0	disaccharide derivative; glycoside	detergent
florox reagent Florox Reagent: reagent for analysis of ketosteroids; structure	2	1	0
niobium pentoxide [no description available]	2.05	1	0
stannane [no description available]	2.02	1	0	mononuclear parent hydride; tin hydride
carbene carbene: electrically neutral species H2C: and its derivatives, in which the carbon is covalently bonded to two univalent groups of any kind or a divalent group and bears two nonbonding electrons; carbene is the name of the parent hydride :CH2 ; hence, the name dichlorocarbene for :CCl2. However, names for acyclic and cyclic hydrocarbons containing one or more divalent carbon atoms are derived from the name of the corresponding all-4-hydrocarbon using the suffix -ylidene; methylene carbene also available. carbene : The electrically neutral species H2C(2.) and its derivatives, in which the carbon is covalently bonded to two univalent groups of any kind or a divalent group and bears two nonbonding electrons, which may be spin-paired (singlet state) or spin-non-paired (triplet state).	7.7	3	0	carbene; methanediyl
perchlorate perchlorate: the explosive component of rocket fuel; an environmental contaminant that disrupts THYROID HORMONES. perchlorate : A monovalent inorganic anion obtained by deprotonation of perchloric acid.	2.07	1	0	chlorine oxoanion; monovalent inorganic anion
cyclopropanol [no description available]	2.21	1	0	aliphatic alcohol; cyclopropanes
fullerene c60 Fullerenes: A polyhedral CARBON structure composed of around 60-80 carbon atoms in pentagon and hexagon configuration. They are named after Buckminster Fuller because of structural resemblance to geodesic domes. Fullerenes can be made in high temperature such as arc discharge in an inert atmosphere.. fullerene : A compound composed solely of an even number of carbon atoms, which form a cage-like fused-ring polycyclic system with twelve five-membered rings and the rest six-membered rings. The term has been broadened to include any closed cage structure consisting entirely of three-coordinate carbon atoms.	2.05	1	0	fullerene	geroprotector
c & b metabond Super-bond: an adhesive resin composed of 4-methacryloxyethyltrimellitic anhydride (4-META), methylmethacrylates (MMA) and tri-n-butylborane (TBB)	1.98	1	0
1,n(2)-ethenoguanosine 1,N(2)-ethenoguanosine: structure given in first source	4.29	3	0
methotrexate [no description available]	2.17	1	0	dicarboxylic acid; monocarboxylic acid amide; pteridines	abortifacient; antimetabolite; antineoplastic agent; antirheumatic drug; dermatologic drug; DNA synthesis inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; immunosuppressive agent
5,6,7,9-tetrahydro-7-hydroxy-9-oxoimidazo(1,2-a)purine 5,6,7,9-tetrahydro-7-hydroxy-9-oxoimidazo(1,2-a)purine: derivative of N(2)-(2-oxoethyl)guanine; structure given in first source	2.39	2	0
clausenamide clausenamide: Chinese drug isolated from leaves of Clausena lansium (Lour) Skeels; used in treatment of viral hepatitis; structure given in first source	2.45	2	0
2-hydroxypropylvaline 2-hydroxypropylvaline: RN given refers to (DL)-isomer; RN for cpd without isomeric designation not available 11/88	2.01	1	0
6-hydroxyethylguanine 6-hydroxyethylguanine: formed in DNA treated with BCNU	7.38	2	0
carbapenems [no description available]	2.54	2	0
beta-lactams 2-azetidinone: structure in first source. azetidin-2-one : An unsubstituted beta-lactam compound.. beta-lactam : A lactam in which the amide bond is contained within a four-membered ring, which includes the amide nitrogen and the carbonyl carbon.	3.52	2	0	beta-lactam antibiotic allergen; beta-lactam
cdri 81-470 [no description available]	2.04	1	0
5-(n-dodecanoyl)aminofluorescein 5-dodecanoylaminofluorescein: used for determining micelle concentration via fluorescence anisotropy	2.01	1	0
naproxen Naproxen: An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.. naproxen : A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.	2.03	1	0	methoxynaphthalene; monocarboxylic acid	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; environmental contaminant; gout suppressant; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic
hydroxyl radical Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent.	2.4	2	0	oxygen hydride; oxygen radical; reactive oxygen species
singlet oxygen Singlet Oxygen: An excited state of molecular oxygen generated photochemically or chemically. Singlet oxygen reacts with a variety of biological molecules such as NUCLEIC ACIDS; PROTEINS; and LIPIDS; causing oxidative damages.	2.73	3	0	chalcogen; monoatomic oxygen; nonmetal atom	macronutrient
zinc hematoporphyrin [no description available]	2.03	1	0
isophorone diisocyanate [no description available]	2	1	0	diisocyanate
2-(2-methoxyethoxy)ethyl methacrylate 2-(2-methoxyethoxy)ethyl methacrylate: structure in first source	2.05	1	0
terics terics: medicated blocks used for control of cattle bloat; RN given is for teric N; nonylphenol ethoxylate is resistant to environmental breakdown so EPA discourages use	2.08	1	0
biotin vitamin B7 : Any member of a group of vitamers that belong to the chemical structural class called biotins that exhibit biological activity against vitamin B7 deficiency. Vitamin B7 deficiency is very rare in individuals who take a normal balanced diet. Foods rich in biotin are egg yolk, liver, cereals, vegetables (spinach, mushrooms) and rice. Symptoms associated with vitamin B7 deficiency include thinning hair, scaly skin rashes around eyes, nose and mouth, and brittle nails. The vitamers include biotin and its ionized and salt forms.	2.08	1	0	biotins; vitamin B7	coenzyme; cofactor; Escherichia coli metabolite; fundamental metabolite; human metabolite; mouse metabolite; nutraceutical; prosthetic group; Saccharomyces cerevisiae metabolite
atropine tropan-3alpha-yl 3-hydroxy-2-phenylpropanoate : A tropane alkaloid that is (1R,5)-8-methyl-8-azabicyclo[3.2.1]octane substituted by a (3-hydroxy-2-phenylpropanoyl)oxy group at position 3.	1.95	1	0
lignin Lignin: The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed). lignin : A polyphenylpropanoid derived from three monolignol monomers: trans-p-coumaryl alcohol, coniferol and trans-sinapyl alcohol. There is extensive cross-linking and no defined primary structure.	7.4	2	0
n(2),3-ethenoguanine N(2),3-ethenoguanine: formed from 2-halooxiranes. N(2),3-ethenoguanine : A nucleobase analogue obtained by addition of an etheno group across positions N2 and 3 of guanine.	3.08	1	0	imidazopurine; nucleobase analogue
erlotinib hydrochloride [no description available]	2.1	1	0	hydrochloride; terminal acetylenic compound	antineoplastic agent; protein kinase inhibitor
organophosphonates hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid.	2.46	2	0	divalent inorganic anion; phosphite ion
aflatoxin b1 Aflatoxin B1: A potent hepatotoxic and hepatocarcinogenic mycotoxin produced by the Aspergillus flavus group of fungi. It is also mutagenic, teratogenic, and causes immunosuppression in animals. It is found as a contaminant in peanuts, cottonseed meal, corn, and other grains. The mycotoxin requires epoxidation to aflatoxin B1 2,3-oxide for activation. Microsomal monooxygenases biotransform the toxin to the less toxic metabolites aflatoxin M1 and Q1.. aflatoxin B1 : An aflatoxin having a tetrahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene skeleton with oxygen functionality at positions 1, 4 and 11.	2.25	1	0	aflatoxin; aromatic ether; aromatic ketone	carcinogenic agent; human metabolite
2',3',4',5'-tetrabenzoyl-5-acetyl-1,5-dihydroriboflavin [no description available]	1.97	1	0
chlorite [no description available]	1.96	1	0	chlorine oxoanion; monovalent inorganic anion
yh 1885 YH 1885: proton pump inhibitor; structure in first source	2.04	1	0
cholic acid Cholic Acid: A major primary bile acid produced in the liver and usually conjugated with glycine or taurine. It facilitates fat absorption and cholesterol excretion.. cholic acid : A bile acid that is 5beta-cholan-24-oic acid bearing three alpha-hydroxy substituents at position 3, 7 and 12.	2.05	1	0	12alpha-hydroxy steroid; 3alpha-hydroxy steroid; 7alpha-hydroxy steroid; bile acid; C24-steroid; trihydroxy-5beta-cholanic acid	human metabolite; mouse metabolite
deoxycholic acid Deoxycholic Acid: A bile acid formed by bacterial action from cholate. It is usually conjugated with glycine or taurine. Deoxycholic acid acts as a detergent to solubilize fats for intestinal absorption, is reabsorbed itself, and is used as a choleretic and detergent.. deoxycholic acid : A bile acid that is 5beta-cholan-24-oic acid substituted by hydroxy groups at positions 3 and 12 respectively.	2.01	1	0	bile acid; C24-steroid; dihydroxy-5beta-cholanic acid	human blood serum metabolite
lithium fluoride lithium fluoride: RN given refers to cpd with MF of Li-F; GR200-A is LiF activated by Mg, Cu, and P	1.96	1	0
(1-chloroethenyl)oxirane (1-chloroethenyl)oxirane: structure in first source	3.27	6	0
benzofurans Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring.	2.47	2	0
lupeol [no description available]	2.03	1	0	pentacyclic triterpenoid; secondary alcohol	anti-inflammatory drug; plant metabolite
2-oxindole 2-oxindole: RN given refers to parent cpd; structure. indolin-2-one : An indolinone carrying an oxo group at position 2.	2.08	1	0	gamma-lactam; indolinone
curcuphenol curcuphenol: from marine sponge Epipolasis sp.; inhibts H,K-ATPase; structure given in first source; RN given refers to (R)-isomer	2.07	1	0
cryptophycin cryptophycin: a potent antitumor cyclic depsipeptide active against drug-resistant cells; from cyanobacteria (blue-green algae) of the genus Nostoc; structure given in first source;	2.02	1	0
acetogenins Acetogenins: Polyketides of up to a few dozen carbons in length, formed by chain extension of multiple PROPIONATES and oxygenated to form tetrahydrofuran and lactone rings along the length of the chain. They are found in ANNONACEAE and other PLANTS. Related compounds cyclize to MACROLIDES.	2.15	1	0
methylmercuric chloride methylmercuric chloride: RN given refers to unlabeled cpd	2.01	1	0	chlorine molecular entity; mercury coordination entity; one-carbon compound
povidone-iodine Povidone-Iodine: An iodinated polyvinyl polymer used as topical antiseptic in surgery and for skin and mucous membrane infections, also as aerosol. The iodine may be radiolabeled for research purposes.	2.67	3	0
arabinose [no description available]	2.02	1	0	L-arabinose	Escherichia coli metabolite; mouse metabolite
fibrin Fibrin: A protein derived from FIBRINOGEN in the presence of THROMBIN, which forms part of the blood clot.	8.07	5	0	peptide
bradykinin [no description available]	4.01	2	0	oligopeptide	human blood serum metabolite; vasodilator agent
elastin [no description available]	2.17	1	0	oligopeptide
7-dehydrocholesterol [no description available]	2.07	1	0	3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; cholestanoid; Delta(5),Delta(7)-sterol	human metabolite; mouse metabolite
ouabain Ouabain: A cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae; used like DIGITALIS. It is commonly used in cell biological studies as an inhibitor of the NA(+)-K(+)-EXCHANGING ATPASE.. cardiac glycoside : Steroid lactones containing sugar residues that act on the contractile force of the cardiac muscles.. ouabain : A steroid hormone that is a multi-hydroxylated alpha-L-rhamnosyl cardenoloide. It binds to and inhibits the plasma membrane Na(+)/K(+)-ATPase (sodium pump). It has been isolated naturally from Strophanthus gratus.	7.36	2	0	11alpha-hydroxy steroid; 14beta-hydroxy steroid; 5beta-hydroxy steroid; alpha-L-rhamnoside; cardenolide glycoside; steroid hormone	anti-arrhythmia drug; cardiotonic drug; EC 2.3.3.1 [citrate (Si)-synthase] inhibitor; EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor; ion transport inhibitor; plant metabolite
quinidine Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.. quinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy.	2.04	1	0	cinchona alkaloid	alpha-adrenergic antagonist; anti-arrhythmia drug; antimalarial; drug allergen; EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor; EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor; muscarinic antagonist; P450 inhibitor; potassium channel blocker; sodium channel blocker
meropenem Meropenem: A thienamycin derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of bacterial infections, including infections in immunocompromised patients.. meropenem : A carbapenemcarboxylic acid in which the azetidine and pyrroline rings carry 1-hydroxymethyl and in which the azetidine and pyrroline rings carry 1-hydroxymethyl and 5-(dimethylcarbamoyl)pyrrolidin-3-ylthio substituents respectively.	7.06	1	0	alpha,beta-unsaturated monocarboxylic acid; carbapenemcarboxylic acid; organic sulfide; pyrrolidinecarboxamide	antibacterial agent; antibacterial drug; drug allergen
griseofulvin Griseofulvin: An antifungal agent used in the treatment of TINEA infections.. griseofulvin : An oxaspiro compound produced by Penicillium griseofulvum. It is used by mouth as an antifungal drug for infections involving the scalp, hair, nails and skin that do not respond to topical treatment.	8.38	7	0	1-benzofurans; antibiotic antifungal drug; benzofuran antifungal drug; organochlorine compound; oxaspiro compound	antibacterial agent; Penicillium metabolite
actinorhodin actinorhodin: structure. actinorhodin : A member of the class of benzoisochromanequinone that is produced by Streptomyces coelicolor A3(2) and exhibits antibiotic activity.	2.02	1	0
pancratistatin pancratistatin: an isocarbostyril from Amaryllidaceae	2.02	1	0	citraconoyl group
gingerol gingerol: an active ingredient in GINGER along with SHOGAOL. a nonvolatile methoxy phenyl decanone. gingerol : A beta-hydroxy ketone that is 5-hydroxydecan-3-one substituted by a 4-hydroxy-3-methoxyphenyl moiety at position 1; believed to inhibit adipogenesis. It is a constituent of fresh ginger.	2.25	1	0	beta-hydroxy ketone; guaiacols	antineoplastic agent; plant metabolite
lignans Lignans: A class of dibenzylbutane derivatives which occurs in higher plants and in fluids (bile, serum, urine, etc.) in man and other animals. These compounds, which have a potential anti-cancer role, can be synthesized in vitro by human fecal flora. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	2.45	2	0
erythromycin ethylsuccinate Erythromycin Ethylsuccinate: A macrolide antibiotic, produced by Streptomyces erythreus. This compound is an ester of erythromycin base and succinic acid. It acts primarily as a bacteriostatic agent. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.. erythromycin ethylsuccinate : A erythromycin derivative that is erythromycin A in which the hydroxy group at position 3R is substituted by a (4-ethoxy-4-oxobutanoyl)oxy group. It is used for the treatment of a wide variety of bacterial infections.	1.96	1	0	cyclic ketone; erythromycin derivative; ethyl ester; succinate ester
betadex beta-Cyclodextrins: Cyclic GLUCANS consisting of seven (7) glucopyranose units linked by 1,4-glycosidic bonds.	3.18	5	0	cyclodextrin
ergosterol [no description available]	2.07	1	0	3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; ergostanoid; phytosterols	fungal metabolite; Saccharomyces cerevisiae metabolite
tretinoin Tretinoin: An important regulator of GENE EXPRESSION during growth and development, and in NEOPLASMS. Tretinoin, also known as retinoic acid and derived from maternal VITAMIN A, is essential for normal GROWTH; and EMBRYONIC DEVELOPMENT. An excess of tretinoin can be teratogenic. It is used in the treatment of PSORIASIS; ACNE VULGARIS; and several other SKIN DISEASES. It has also been approved for use in promyelocytic leukemia (LEUKEMIA, PROMYELOCYTIC, ACUTE).. retinoic acid : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraenoic acid substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified).. all-trans-retinoic acid : A retinoic acid in which all four exocyclic double bonds have E- (trans-) geometry.	2.01	1	0	retinoic acid; vitamin A	anti-inflammatory agent; antineoplastic agent; antioxidant; AP-1 antagonist; human metabolite; keratolytic drug; retinoic acid receptor agonist; retinoid X receptor agonist; signalling molecule
arachidonic acid icosa-5,8,11,14-tetraenoic acid : Any icosatetraenoic acid with the double bonds at positions 5, 8, 11 and 14.. arachidonate : A long-chain fatty acid anion resulting from the removal of a proton from the carboxy group of arachidonic acid.	2	1	0	icosa-5,8,11,14-tetraenoic acid; long-chain fatty acid; omega-6 fatty acid	Daphnia galeata metabolite; EC 3.1.1.1 (carboxylesterase) inhibitor; human metabolite; mouse metabolite
farnesol Farnesol: A colorless liquid extracted from oils of plants such as citronella, neroli, cyclamen, and tuberose. It is an intermediate step in the biological synthesis of cholesterol from mevalonic acid in vertebrates. It has a delicate odor and is used in perfumery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed). (2-trans,6-trans)-farnesol : The (2-trans,6-trans)-stereoisomer of farnesol.. farnesol : A farnesane sesquiterpenoid that is dodeca-2,6,10-triene substituted by methyl groups at positions 3, 7 and 11 and a hydroxy group at position 1.	2.06	1	0	farnesol	plant metabolite
cocaine Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca.	2.04	1	0	benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid	adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic
fosfomycin Fosfomycin: An antibiotic produced by Streptomyces fradiae.. fosfomycin : A phosphonic acid having an (R,S)-1,2-epoxypropyl group attached to phosphorus.	2.43	2	0	epoxide; phosphonic acids	antimicrobial agent; EC 2.5.1.7 (UDP-N-acetylglucosamine 1-carboxyvinyltransferase) inhibitor
zithromax Azithromycin: A semi-synthetic macrolide antibiotic structurally related to ERYTHROMYCIN. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis.. azithromycin : A macrolide antibiotic useful for the treatment of bacterial infections.	2.04	1	0	macrolide antibiotic	antibacterial drug; environmental contaminant; xenobiotic
2-butenal crotonaldehyde : An enal consisting of propene having a formyl group at the 1-position.	3.46	1	1	enal
dioxirane [no description available]	2.44	2	0
dactinomycin Dactinomycin: A compound composed of a two CYCLIC PEPTIDES attached to a phenoxazine that is derived from STREPTOMYCES parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015)	2.03	1	0	actinomycin	mutagen
tenofovir tenofovir (anhydrous) : A member of the class of phosphonic acids that is methylphosphonic acid in which one of the methyl hydrogens is replaced by a [(2R)-1-(6-amino-9H-purin-9-yl)propan-2-yl]oxy group. An inhibitor of HIV-1 reverse transcriptase, the bis(isopropyloxycarbonyloxymethyl) ester (disoproxil ester) prodrug is used as the fumaric acid salt in combination therapy for the treatment of HIV infection.	7.41	1	0	nucleoside analogue; phosphonic acids	antiviral drug; drug metabolite; HIV-1 reverse transcriptase inhibitor
riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms).	1.97	1	0	flavin; vitamin B2	anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite
potassium permanganate Potassium Permanganate: Permanganic acid (HMnO4), potassium salt. A highly oxidative, water-soluble compound with purple crystals, and a sweet taste. (From McGraw-Hill Dictionary of Scientific and Technical Information, 4th ed)	2.01	1	0
ammonium acetate ammonium acetate : An ammonium salt obtained by reaction of ammonia with acetic acid. A deliquescent white crystalline solid, it has a relatively low melting point (114degreeC) for a salt. Used as a food acidity regulator, although no longer approved for this purpose in the EU.	2.05	1	0	acetate salt; ammonium salt	buffer; food acidity regulator
bromochloroacetic acid Keratins: A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.. bromochloroacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is replaced by bromine while a second is replaced by chlorine. A low-melting (27.5-31.5degreeC), hygroscopic crystalline solid, it can be formed during the disinfection (by chlorination) of water that contains bromide ions and organic matter, so can occur in drinking water as a byproduct of the disinfection process.	1.94	1	0	2-bromocarboxylic acid; monocarboxylic acid; organochlorine compound
glycosides [no description available]	2.05	1	0
isomethyleugenol Methylation: Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed)	3.23	6	0	isomethyleugenol
squalene Addavax: an oil-water nanoemulsion and adjuvant containing squalene, Tween 80, and sorbitane trioleate	2.03	1	0	triterpene	human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite
sesquiterpenes [no description available]	2.51	2	0
cotinine Cotinine: The N-glucuronide conjugate of cotinine is a major urinary metabolite of NICOTINE. It thus serves as a biomarker of exposure to tobacco SMOKING. It has CNS stimulating properties.. (-)-cotinine : An N-alkylpyrrolidine that consists of N-methylpyrrolidinone bearing a pyridin-3-yl substituent at position C-5 (the 5S-enantiomer). It is an alkaloid commonly found in Nicotiana tabacum.	3.12	5	0	N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid	antidepressant; biomarker; human xenobiotic metabolite; plant metabolite
dieldrin Dieldrin: An organochlorine insecticide whose use has been cancelled or suspended in the United States. It has been used to control locusts, tropical disease vectors, in termite control by direct soil injection, and non-food seed and plant treatment. (From HSDB). dieldrin : An organochlorine compound resulting from the epoxidation of the double bond of aldrin. It is the active metabolite of the proinsecticde aldrin.	1.95	1	0	epoxide; organochlorine compound; organochlorine insecticide	carcinogenic agent; xenobiotic
curcumin Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.. curcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa.	7.79	3	0	aromatic ether; beta-diketone; diarylheptanoid; enone; polyphenol	anti-inflammatory agent; antifungal agent; antineoplastic agent; biological pigment; contraceptive drug; dye; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; EC 1.1.1.21 (aldehyde reductase) inhibitor; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor; EC 1.8.1.9 (thioredoxin reductase) inhibitor; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor; EC 3.5.1.98 (histone deacetylase) inhibitor; flavouring agent; food colouring; geroprotector; hepatoprotective agent; immunomodulator; iron chelator; ligand; lipoxygenase inhibitor; metabolite; neuroprotective agent; nutraceutical; radical scavenger
capsaicin ALGRX-4975: an injectable capsaicin (TRPV1 receptor agonist) formulation for longlasting pain relief. capsaicinoid : A family of aromatic fatty amides produced as secondary metabolites by chilli peppers.	2.15	1	0	capsaicinoid	non-narcotic analgesic; TRPV1 agonist; voltage-gated sodium channel blocker
terbinafine [no description available]	2.04	1	0	acetylenic compound; allylamine antifungal drug; enyne; naphthalenes; tertiary amine	EC 1.14.13.132 (squalene monooxygenase) inhibitor; P450 inhibitor; sterol biosynthesis inhibitor
thioguanine anhydrous Thioguanine: An antineoplastic compound which also has antimetabolite action. The drug is used in the therapy of acute leukemia.. tioguanine : A 2-aminopurine that is the 6-thiono derivative of 2-amino-1,9-dihydro-6H-purine. Incorporates into DNA and inhibits synthesis. Used in the treatment of leukaemia.	2.89	4	0	2-aminopurines	anticoronaviral agent; antimetabolite; antineoplastic agent
tungsten carbide tungsten carbide: RN given refers to cpd with unspecified MF	1.97	1	0
digoxin Digoxin: A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666). digoxin : A cardenolide glycoside that is digitoxin beta-hydroxylated at C-12. A cardiac glycoside extracted from the foxglove plant, Digitalis lanata, it is used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation, but the margin between toxic and therapeutic doses is small.	2.04	1	0	cardenolide glycoside; steroid saponin	anti-arrhythmia drug; cardiotonic drug; EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor; epitope
ytterbium(iii) triflate [no description available]	2.07	1	0
nadp [no description available]	2.65	3	0
d-glucal [no description available]	2.02	1	0
thiopental Thiopental: A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration.. thiopental : A barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups.	2.04	1	0	barbiturates	anticonvulsant; drug allergen; environmental contaminant; intravenous anaesthetic; sedative; xenobiotic
laccase Laccase: A copper-containing oxidoreductase enzyme that catalyzes the oxidation of 4-benzenediol to 4-benzosemiquinone. It also has activity towards a variety of O-quinols and P-quinols. It primarily found in FUNGI and is involved in LIGNIN degradation, pigment biosynthesis and detoxification of lignin-derived products.	7.73	3	0
lithium Lithium: An element in the alkali metals family. It has the atomic symbol Li, atomic number 3, and atomic weight [6.938; 6.997]. Salts of lithium are used in treating BIPOLAR DISORDER.	4.62	8	0	alkali metal atom
cobaltous chloride cobaltous chloride: RN given refers to unlabeled cpd; RN in Chemline for cobalt trichloride: 10241-04-0; RN for 60-labeled cpd: 14543-09-0; RN for 57-labeled cpd: 164113-89-1; RN for 58-labeled cpd: 29377-09-1; structure. cobalt dichloride : A cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is chloride. It is used as an indicator for water in desiccants.	1.96	1	0	cobalt salt; inorganic chloride	allergen; calcium channel blocker; sensitiser; two-colour indicator
nitrogen dioxide Nitrogen Dioxide: Nitrogen oxide (NO2). A highly poisonous gas. Exposure produces inflammation of lungs that may only cause slight pain or pass unnoticed, but resulting edema several days later may cause death. (From Merck, 11th ed) It is a major atmospheric pollutant that is able to absorb UV light that does not reach the earth's surface.	1.93	1	0	nitrogen oxide
methyl radical [no description available]	2.11	1	0	organic radical
cystine [no description available]	1.93	1	0
pyralomicin 1a pyralomicin 1a: isolated from Microtetraspora spiralis; structure in first source	3.11	1	0
nitinol nitinol: RN given refers to cpd with MF of Ni-Ti; do not confuse with titanium nickelide; other nitinols (nitinol SE and nitinol 55) are Co-Ni-Ti alloys	3.51	1	0
silicon nitride [no description available]	7.06	1	0
tecoflex Tecoflex: RN given refers to cpd with unknown MF	2.03	1	0
ovalbumin Ovalbumin: An albumin obtained from the white of eggs. It is a member of the serpin superfamily.	2.08	1	0
sodium dodecyl sulfate Sodium Dodecyl Sulfate: An anionic surfactant, usually a mixture of sodium alkyl sulfates, mainly the lauryl; lowers surface tension of aqueous solutions; used as fat emulsifier, wetting agent, detergent in cosmetics, pharmaceuticals and toothpastes; also as research tool in protein biochemistry.. sodium dodecyl sulfate : An organic sodium salt that is the sodium salt of dodecyl hydrogen sulfate.	8.28	6	0	organic sodium salt	detergent; protein denaturant
alpha-chymotrypsin Chymotrypsin: A serine endopeptidase secreted by the pancreas as its zymogen, CHYMOTRYPSINOGEN and carried in the pancreatic juice to the duodenum where it is activated by TRYPSIN. It selectively cleaves aromatic amino acids on the carboxyl side.	3.47	8	0
17-ketosteroids 17-Ketosteroids: Steroids that contain a ketone group at position 17.. 17-oxo steroid : Any oxo steroid carrying the oxo group at position 17.	1.94	1	0
naphthoquinones Naphthoquinones: Naphthalene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups.	2.07	1	0
hydroxyethylcellulose hydroxyethylcellulose: component of contact lens wetting solutions; aldiamed is an artificial saliva; RN given refers to parent cpd. hydroxyethylcellulose : A polysaccharide derivative that is cellulose in which hydroxyethyl groups are bound to some of the hydroxyl groups of the glucopyranose monomers.	2.02	1	0
rhodamine 123 Rhodamine 123: A fluorescent probe with low toxicity which is a potent substrate for ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1 and the bacterial multidrug efflux transporter. It is used to assess mitochondrial bioenergetics in living cells and to measure the efflux activity of ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1 in both normal and malignant cells. (Leukemia 1997;11(7):1124-30). rhodamine 123(1+) : A cationic fluorescent dye derived from 9-phenylxanthene.	2.13	1	0	organic cation; xanthene dye	fluorochrome
diethyl maleate diethyl maleate : A maleate ester resulting from the formal condensation of both carboxy groups of maleic acid with ethanol. A colourless liquid at room temperature (m.p. -10degreeC) with boiling point 220degreeC at 1 atm., it is commonly used as a dienophile for Diels-Alder-type cycloaddition reactions in organic synthesis.	1.97	1	0	ethyl ester; maleate ester	glutathione depleting agent
sphingosine sphing-4-enine : A sphingenine in which the C=C double bond is located at the 4-position.. sphingenine : A 2-aminooctadecene-1,3-diol having (2S,3R)-configuration.. sphingoid : Sphinganine, its homologs and stereoisomers, and the hydroxy and unsaturated derivatives of these compounds.. 2-aminooctadec-4-ene-1,3-diol : A 2-aminooctadecene-1,3-diol having its double bond at position 4.	2.45	2	0	sphing-4-enine	human metabolite; mouse metabolite
quercetin [no description available]	2.49	2	0	7-hydroxyflavonol; pentahydroxyflavone	antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger
dinoprostone prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins.	1.96	1	0	prostaglandins E	human metabolite; mouse metabolite; oxytocic
12-oxophytodienoic acid 12-oxophytodienoic acid: structure given in first source; a jasmonate precursor that induces phytoalexin synthesis	1.98	1	0	carbocyclic fatty acid; olefinic fatty acid; oxo carboxylic acid
vitamin k semiquinone radical vitamin K semiquinone radical: found in active preparations of vitamin K-dependent carboxylase. vitamin K : Any member of a group of fat-soluble 2-methyl-1,4-napthoquinones that exhibit biological activity against vitamin K deficiency. Vitamin K is required for the synthesis of prothrombin and certain other blood coagulation factors.	1.94	1	0
8,11,14-eicosatrienoic acid 8,11,14-Eicosatrienoic Acid: A 20-carbon-chain fatty acid, unsaturated at positions 8, 11, and 14. It differs from arachidonic acid, 5,8,11,14-eicosatetraenoic acid, only at position 5.. all-cis-icosa-8,11,14-trienoic acid : An icosatrienoic acid having three cis double bonds at positions 8, 11 and 14.	2.39	2	0	fatty acid 20:3; long-chain fatty acid	fungal metabolite; human metabolite; nutraceutical
rosin rosin: Resin from plant. Do not confuse with the specific compound: 3-phenyl-2-propenyl-(E)-beta-D-glucopyranoside, also know as rosin.	2.13	1	0
vitamin d 2 Ergocalciferols: Derivatives of ERGOSTEROL formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. They differ from CHOLECALCIFEROL in having a double bond between C22 and C23 and a methyl group at C24.. vitamin D2 : A vitamin D supplement and has been isolated from alfalfa.	2.07	1	0	hydroxy seco-steroid; seco-ergostane; vitamin D	bone density conservation agent; nutraceutical; plant metabolite; rodenticide
rutin Hydroxyethylrutoside: Monohydroxyethyl derivative of rutin. Peripheral circulation stimulant used in treatment of venous disorders.	2.38	2	0	disaccharide derivative; quercetin O-glucoside; rutinoside; tetrahydroxyflavone	antioxidant; metabolite
amphotericin b Amphotericin B: Macrolide antifungal antibiotic produced by Streptomyces nodosus obtained from soil of the Orinoco river region of Venezuela.. amphotericin B : A macrolide antibiotic used to treat potentially life-threatening fungal infections.	2.58	2	0	antibiotic antifungal drug; macrolide antibiotic; polyene antibiotic	antiamoebic agent; antiprotozoal drug; bacterial metabolite
pulmicort Budesonide: A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.. budesonide : A glucocorticoid steroid having a highly oxygenated pregna-1,4-diene structure. It is used mainly in the treatment of asthma and non-infectious rhinitis and for treatment and prevention of nasal polyposis.	2.44	2	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; cyclic acetal; glucocorticoid; primary alpha-hydroxy ketone	anti-inflammatory drug; bronchodilator agent; drug allergen
cucurbitacin i cucurbitacin I: toxic constituent in edible gourd; see also records for cucurbitacins & specific cucurbitacins. cucurbitacin I : A cucurbitacin that is 9,10,14-trimethyl-4,9-cyclo-9,10-secocholesta-2,5,23-triene substituted by hydroxy groups at positions 2, 16, 20 and 25 and oxo groups at positions 1, 11 and 22.	2.15	1	0	cucurbitacin; tertiary alpha-hydroxy ketone	antineoplastic agent; plant metabolite
isotretinoin Isotretinoin: A topical dermatologic agent that is used in the treatment of ACNE VULGARIS and several other skin diseases. The drug has teratogenic and other adverse effects.. isotretinoin : A retinoic acid that is all-trans-retinoic acid in which the double bond which is alpha,beta- to the carboxy group is isomerised to Z configuration. A synthetic retinoid, it is used for the treatment of severe cases of acne and other skin diseases.	2.02	1	0	retinoic acid	antineoplastic agent; keratolytic drug; teratogenic agent
8,9-epoxyeicosatrienoic acid 8,9-epoxyeicosatrienoic acid: RN given refers to cpd without isomeric designation. 8,9-EET : An EET obtained by formal epoxidation of the 8,9-double bond of arachidonic acid.	2.39	2	0	EET	mouse metabolite
sphingosine 1-phosphate sphingosine 1-phosphate: RN given refers to (R-(R,S-(E)))-isomer; RN for cpd without isomeric designation not available 8/89. sphingosine 1-phosphate : A phosphosphingolipid that consists of sphingosine having a phospho group attached at position 1	2.02	1	0	sphingoid 1-phosphate	mouse metabolite; signalling molecule; sphingosine-1-phosphate receptor agonist; T-cell proliferation inhibitor; vasodilator agent
phenylephrine hydrochloride Nose: A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.. phenylephrine hydrochloride : A hydrochloride that is the monohydrochloride salt of phenylephrine.	2.06	1	0	hydrochloride
sirolimus Sirolimus: A macrolide compound obtained from Streptomyces hygroscopicus that acts by selectively blocking the transcriptional activation of cytokines thereby inhibiting cytokine production. It is bioactive only when bound to IMMUNOPHILINS. Sirolimus is a potent immunosuppressant and possesses both antifungal and antineoplastic properties.. sirolimus : A macrolide lactam isolated from Streptomyces hygroscopicus consisting of a 29-membered ring containing 4 trans double bonds, three of which are conjugated. It is an antibiotic, immunosupressive and antineoplastic agent.	2.47	2	0	antibiotic antifungal drug; cyclic acetal; cyclic ketone; ether; macrolide lactam; organic heterotricyclic compound; secondary alcohol	antibacterial drug; anticoronaviral agent; antineoplastic agent; bacterial metabolite; geroprotector; immunosuppressive agent; mTOR inhibitor
morphine Meconium: The thick green-to-black mucilaginous material found in the intestines of a full-term fetus. It consists of secretions of the INTESTINAL GLANDS; BILE PIGMENTS; FATTY ACIDS; AMNIOTIC FLUID; and intrauterine debris. It constitutes the first stools passed by a newborn.	1.97	1	0	morphinane alkaloid; organic heteropentacyclic compound; tertiary amino compound	anaesthetic; drug allergen; environmental contaminant; geroprotector; mu-opioid receptor agonist; opioid analgesic; plant metabolite; vasodilator agent; xenobiotic
ciguatoxins Ciguatoxins: Polycyclic ethers produced by Gambierdiscus (DINOFLAGELLATES) from gambiertoxins, which are ingested by fish which in turn may be ingested by humans who are susceptible to the CIGUATERA POISONING.. ciguatoxin CTX1B : A ciguatoxin comprising a sequence of twelve trans-fused six-, seven-, eight- and nine-membered rings and a spiro-fused five-membered ring. A commonly encountered fish toxin.. ciguatoxin : Ciguatoxins are cyclic polyether toxins, derived from marine dinoflagellates, which are responsible for the symptoms of ciguatera poisoning. Ingestion of tropical and subtropical fin fish contaminated by ciguatoxins results in an illness characterised by neurological, cardiovascular and gastrointestinal disorders.	2.05	1	0	ciguatoxin	metabolite
22,23-dihydroergosterol 22,23-dihydroergosterol: RN given refers to (3beta)-isomer. ergosta-5,7-dien-3beta-ol : A phytosterol consiting of ergostane having double bonds at the 5,6- and 7,8-positions as well as a 3beta-hydroxy group.	2.07	1	0	3beta-sterol; ergostanoid; phytosterols
lead Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.	3.78	3	0	carbon group element atom; elemental lead; metal atom	neurotoxin
aluminum Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98.	8.09	5	0	boron group element atom; elemental aluminium; metal atom
strontium Strontium: An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62.	3.34	1	1	alkaline earth metal atom
arsenic Arsenic: A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed)	2.05	1	0	metalloid atom; pnictogen	micronutrient
sulfur Sulfur: An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine.	2.04	1	0	chalcogen; nonmetal atom	macronutrient
diphenylhexatriene Diphenylhexatriene: A fluorescent compound that emits light only in specific configurations in certain lipid media. It is used as a tool in the study of membrane lipids.	2.02	1	0	alkatriene	fluorochrome
fumarates Fumarates: Compounds based on fumaric acid.. fumarate(2-) : A C4-dicarboxylate that is the E-isomer of but-2-enedioate(2-)	2.41	1	0	butenedioate; C4-dicarboxylate	human metabolite; metabolite; Saccharomyces cerevisiae metabolite
turanose turanose : A glycosylfructose isolated from Daphnia magna.	2.13	1	0	glycosylfructose	Daphnia magna metabolite
cysteine Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.	7.87	4	0	cysteinium	fundamental metabolite
silicon Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].	7.46	2	0	carbon group element atom; metalloid atom; nonmetal atom
boron Boron: A trace element with the atomic symbol B, atomic number 5, and atomic weight [10.806; 10.821]. Boron-10, an isotope of boron, is used as a neutron absorber in BORON NEUTRON CAPTURE THERAPY.	1.94	1	0	boron group element atom; metalloid atom; nonmetal atom	micronutrient
cinnamic anhydride cinnamic anhydride: RN given refers to cpd without isomeric designation	2.21	1	0
strontium radioisotopes Strontium Radioisotopes: Unstable isotopes of strontium that decay or disintegrate spontaneously emitting radiation. Sr 80-83, 85, and 89-95 are radioactive strontium isotopes.	1.98	1	0
ophiocordin ophiocordin: metabolite of Cordyceps ophioglossoides	2.04	1	0
methylbenzethonium chloride [no description available]	2.03	1	0	alkylbenzene
ammonium sulfate Ammonium Sulfate: Sulfuric acid diammonium salt. It is used in CHEMICAL FRACTIONATION of proteins.. ammonium sulfate : An inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia. A high-melting (decomposes above 280degreeC) white solid which is very soluble in water (70.6 g/100 g water at 0degreeC; 103.8 g/100 g water at 100degreeC), it is widely used as a fertilizer for alkaline soils.	1.94	1	0	ammonium salt; inorganic sulfate salt	fertilizer
radium Radium: A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra and atomic number 88. Radium is the product of the disintegration of URANIUM and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma-rays in radiotherapy, particularly BRACHYTHERAPY.	6.94	1	0	alkaline earth metal atom
simethicone Simethicone: A poly(dimethylsiloxane) which is a polymer of 200-350 units of dimethylsiloxane, along with added silica gel. It is used as an antiflatulent, surfactant, and ointment base.	1.96	1	0
gambierol gambierol: structure in first source	2.05	1	0
beta-escin Escin: Pentacyclic triterpene saponins, biosynthesized from protoaescigenin and barringtogenol, occurring in the seeds of AESCULUS. It inhibits edema formation and decreases vascular fragility.	2.41	1	0	triterpenoid saponin
aurone [no description available]	2.1	1	0	aurones; cyclic ketone
glucoraphanin glucoraphanin: precursor of sulforaphane. glucoraphanin : A thia-glucosinolic acid that is glucoerucin in which the sulfur atom of the methyl thioether group has been oxidised to the corresponding sulfoxide.	3.46	1	1	sulfoxide; thia-alkylglucosinolic acid
morphinans Morphinans: Compounds based on a partially saturated iminoethanophenanthrene, which can be described as ethylimino-bridged benzo-decahydronaphthalenes. They include some of the OPIOIDS found in PAPAVER that are used as ANALGESICS.	2.03	1	0	isoquinoline alkaloid fundamental parent; morphinane alkaloid
taxane taxane: produced by Taxomyces andreanae	2.02	1	0	diterpene; terpenoid fundamental parent
chlorhexidine Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.. chlorhexidine : A bisbiguanide compound with a structure consisting of two (p-chlorophenyl)guanide units linked by a hexamethylene bridge.	8.38	7	0	biguanides; monochlorobenzenes	antibacterial agent; antiinfective agent
pachastrissamine pachastrissamine: a cytotoxic anhydrophytosphingosine from a marine sponge, Pachastrissa sp. ; structure in first source	2.08	1	0
sincalide Sincalide: An octapeptide hormone present in the intestine and brain. When secreted from the gastric mucosa, it stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas.	2.11	1	0	oligopeptide
clerocidin [no description available]	2.02	1	0
aluminum oxide Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.	7.9	4	0
sb 204990 [no description available]	2.05	1	0
sch 442416 SCH 442416: an adenosine A2A receptor ligand	2.04	1	0	triazolopyrimidines
acebutolol alpha-D-glucosyl-(1->4)-alpha-D-mannose : An alpha-D-glucosyl-(1->4)-D-mannopyranose in which the anomeric hydroxy group has alpha configuration.	2.03	1	0	alpha-D-glucosyl-(1->4)-D-mannopyranose
methyl(trifluoromethyl)dioxirane methyl(trifluoromethyl)dioxirane: structure in first source	3.29	6	0
marizomib marizomib: a proteasome inhibitor from a marine bacterium Salinospora; structure in first source	2.05	1	0	beta-lactone; gamma-lactam; organic heterobicyclic compound; organochlorine compound; salinosporamide	antineoplastic agent; proteasome inhibitor
n-(2-cyanoethyl)valine N-(2-cyanoethyl)valine: structure given in first source	2.44	2	0
losartan potassium Erythropoietin: Glycoprotein hormone, secreted chiefly by the KIDNEY in the adult and the LIVER in the FETUS, that acts on erythroid stem cells of the BONE MARROW to stimulate proliferation and differentiation.	2.11	1	0
sepharose agarose : A linear polysaccharide made up from alternating D-galactose and 3,6-anhydro-alpha-L-galactopyranose residues joined by alpha-(1->3)- and beta-(1->4)-linkages.	2.9	4	0
pituitrin Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR).	1.94	1	0
yessotoxin yessotoxin: produced by dinoflagellates and accumulated in invertebrates (e.g., Patinopecten gessoensis also known as YESSO SCALLOP) that feed on them. RN given refers to parent compound	2.07	1	0	ciguatoxin
3-methylcytidine [no description available]	1.96	1	0	methylcytidine
3-oxetanone [no description available]	2.11	1	0
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety.	2.38	2	0	organophosphate oxoanion	cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite
oligonucleotides [no description available]	2.71	3	0
cellulose DEAE-Cellulose: Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications.	5.93	25	1	glycoside
phosphatidylcholines Phosphatidylcholines: Derivatives of PHOSPHATIDIC ACIDS in which the phosphoric acid is bound in ester linkage to a CHOLINE moiety.	2.93	4	0	1,2-diacyl-sn-glycero-3-phosphocholine
thimerosal Thimerosal: An ethylmercury-sulfidobenzoate that has been used as a preservative in VACCINES; ANTIVENINS; and OINTMENTS. It was formerly used as a topical antiseptic. It degrades to ethylmercury and thiosalicylate.. thimerosal : An alkylmercury compound (approximately 49% mercury by weight) used as an antiseptic and antifungal agent.	2.41	2	0	alkylmercury compound	antifungal drug; antiseptic drug; disinfectant; drug allergen
sapogenins Sapogenins: The aglucon moiety of a saponin molecule. It may be triterpenoid or steroid, usually spirostan, in nature.	2.5	2	0
chitosan [no description available]	4.06	13	0
mesna Mesna: A sulfhydryl compound used to prevent urothelial toxicity by inactivating metabolites from ANTINEOPLASTIC AGENTS, such as IFOSFAMIDE or CYCLOPHOSPHAMIDE.	1.98	1	0	organosulfonic acid
sodium hypochlorite Sodium Hypochlorite: It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed). sodium hypochlorite : An inorganic sodium salt in which hypochlorite is the counterion. It is used as a bleaching and disinfecting agent and is commonly found in household bleach.	4.58	8	0	inorganic sodium salt	bleaching agent; disinfectant
sodium nitrite Sodium Nitrite: Nitrous acid sodium salt. Used in many industrial processes, in meat curing, coloring, and preserving, and as a reagent in ANALYTICAL CHEMISTRY TECHNIQUES. It is used therapeutically as an antidote in cyanide poisoning. The compound is toxic and mutagenic and will react in vivo with secondary or tertiary amines thereby producing highly carcinogenic nitrosamines.. sodium nitrite : An inorganic sodium salt having nitrite as the counterion. Used as a food preservative and antidote to cyanide poisoning.	2.04	1	0	inorganic sodium salt; nitrite salt	antidote to cyanide poisoning; antihypertensive agent; antimicrobial food preservative; food antioxidant; poison
stearates Stearates: Salts and esters of the 18-carbon saturated, monocarboxylic acid--stearic acid.	2.41	1	0
ethyl cellulose [no description available]	2.03	1	0	glycoside
intrinsic factor Intrinsic Factor: A glycoprotein secreted by the cells of the GASTRIC GLANDS that is required for the absorption of VITAMIN B 12 (cyanocobalamin). Deficiency of intrinsic factor leads to VITAMIN B 12 DEFICIENCY and ANEMIA, PERNICIOUS.	1.95	1	0
mannans [no description available]	2.31	1	0
11,12-epoxy-5,8,14-eicosatrienoic acid 11,12-epoxy-5,8,14-eicosatrienoic acid: RN given refers to cpd without isomeric designation. (11S,12R)-EET : An 11,12-EET in which the epoxy moiety has 11S,12R-configuration.. 11,12-EET : An EET obtained by formal epoxidation of the 11,12-double bond of arachidonic acid.	2	1	0	11,12-EET	human xenobiotic metabolite
glycolipids [no description available]	3.13	1	0
piperidines Piperidines: A family of hexahydropyridines.	1.95	1	0
sordarin sordarin: antifungal mold metabolite of Sordaria araneosa; sordarins A and B are stereoisomers. sordarin : An antifungal metabolite of Sordaria araneosa that inhibits protein synthesis. It has a tetracyclic diterpene glycoside structure.	2.01	1	0
colistin Colistin: Cyclic polypeptide antibiotic from Bacillus colistinus. It is composed of Polymyxins E1 and E2 (or Colistins A, B, and C) which act as detergents on cell membranes. Colistin is less toxic than Polymyxin B, but otherwise similar; the methanesulfonate is used orally.. colistin : A multi-component mixture comprising mostly of colistin A (R = Me) and B (R = H), with small amounts of colistin C and other polymyxins, produced by certain strains of Bacillus polymyxa var. colistinus. An antibiotic, it is used as its sulfate salt (for oral or topical use) or as the sodium salt of the N-methylsulfonic acid derivative (the injectable form) in the treatment of severe Gram-negative infections, partiularly those due to Pseudomonas aeruginosa.	1.94	1	0
tylosin [no description available]	7.41	1	0
endrin Endrin: An organochlorine compound that was formerly used as an insecticide. Its manufacture and use has been discontinued in the United States. (From Merck Index, 11th ed). endrin : An organochlorine compound resulting from the epoxidation of the double bond of isodrin. It is the endo, endo stereoisomer of dieldrin. It is an insecticide mainly used on field crops such as cotton and grains and has also been used as a rodenticide to control mice and voles. The product is banned in many countries since it is a persistent organic pollutant.	1.95	1	0
methylcellulose Methylcellulose: Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.	3.07	5	0
heme Heme: The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.. ferroheme : Any iron(II)--porphyrin coordination complex.. ferroheme b : Heme b in which the iron has oxidation state +2.. heme : A heme is any tetrapyrrolic chelate of iron.	2.38	2	0
ascorbic acid Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms.	3.97	2	0	ascorbic acid; vitamin C	coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent
tetracycline Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.. tetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria.	1.94	1	0
salicylates Salicylates: The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis.. hydroxybenzoate : Any benzoate derivative carrying a single carboxylate group and at least one hydroxy substituent.. salicylates : Any salt or ester arising from reaction of the carboxy group of salicylic acid, or any ester resulting from the condensation of the phenolic hydroxy group of salicylic acid with an organic acid.. salicylate : A monohydroxybenzoate that is the conjugate base of salicylic acid.	2.31	1	0	monohydroxybenzoate	plant metabolite
mobiflex tenoxicam : A thienothiazine-derived monocarboxylic acid amide obtained by formal condensation of the carboxy group of 4-hydroxy-2-methylthieno[2,3-e][1,2]thiazine-3-carboxylic acid 1,1-dioxide with the amino group of 2-aminopyridine. Used for the treatment of pain and inflammation in osteoarthritis and rheumatoid arthritis. It is also indicated for short term treatment of acute musculoskeletal disorders including strains, sprains and other soft-tissue injuries.	2.04	1	0	heteroaryl hydroxy compound; monocarboxylic acid amide; pyridines; thienothiazine	antipyretic; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
warfarin Warfarin: An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.. warfarin : A racemate comprising equal amounts of (R)- and (S)-warfarin. Extensively used as both an anticoagulant drug and as a pesticide against rats and mice.. 4-hydroxy-3-(3-oxo-1-phenylbutyl)-1-benzopyran-2-one : A member of the class of coumarins that is 4-hydroxycoumarin which is substituted at position 3 by a 1-phenyl-3-oxo-1-butyl group.	2.48	2	0	benzenes; hydroxycoumarin; methyl ketone
epidermal growth factor Epidermal Growth Factor: A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form.	1.99	1	0
kaolinite Kaolin: The most common mineral of a group of hydrated aluminum silicates, approximately H2Al2Si2O8-H2O. It is prepared for pharmaceutical and medicinal purposes by levigating with water to remove sand, etc. (From Merck Index, 11th ed) The name is derived from Kao-ling (Chinese: high ridge), the original site. (From Grant & Hackh's Chemical Dictionary, 5th ed). kaolin : An aluminosilicate soft white mineral named after the hill in China (Kao-ling) from which it was mined for centuries. In its natural state kaolin is a white, soft powder consisting principally of the mineral kaolinite, and varying amounts of other minerals such as muscovite, quartz, feldspar, and anatase. It is used in the manufacture of china and porcelain and also widely used in the production of paper, rubber, paint, drying agents, and many other products.	1.94	1	0	aluminosilicate mineral; mixture	antidiarrhoeal drug; excipient
clay Clay: A naturally-occurring rock or soil constituent characterized by particles with a diameter of less than 0.005 mm. It is composed primarily of hydrous aluminum silicates, trace amounts of metal OXIDES, and organic matter.	2.01	1	0
transforming growth factor beta Transforming Growth Factor beta: A factor synthesized in a wide variety of tissues. It acts synergistically with TGF-alpha in inducing phenotypic transformation and can also act as a negative autocrine growth factor. TGF-beta has a potential role in embryonal development, cellular differentiation, hormone secretion, and immune function. TGF-beta is found mostly as homodimer forms of separate gene products TGF-beta1, TGF-beta2 or TGF-beta3. Heterodimers composed of TGF-beta1 and 2 (TGF-beta1.2) or of TGF-beta2 and 3 (TGF-beta2.3) have been isolated. The TGF-beta proteins are synthesized as precursor proteins.	1.98	1	0
agar Agar: A complex sulfated polymer of galactose units, extracted from Gelidium cartilagineum, Gracilaria confervoides, and related red algae. It is used as a gel in the preparation of solid culture media for microorganisms, as a bulk laxative, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis.. agar : A complex mixture of polysaccharides extracted from species of red algae. Its two main components are agarose and agaropectin. Agarose is the component responsible for the high-strength gelling properties of agar, while agaropectin provides the viscous properties.	1.95	1	0
sorbitan monolaurate sorbitan monolaurate: span type materials are artificial esters of the common fatty acids & hexitol anhydrides derived from sorbitol	2.07	1	0
caseins Caseins: A mixture of related phosphoproteins occurring in milk and cheese. The group is characterized as one of the most nutritive milk proteins, containing all of the common amino acids and rich in the essential ones.	2.35	2	0
nitroguanidine nitroguanidine: RN given refers to parent cpd. nitroguanidine : An N-nitro compound that is guanidine in which one of the hydrogens is replaced by a nitro group. It can exist in distinct tautomeric forms, as 1-nitroguanidine (a nitroimine) or 2-nitroguanidine (a nitroamine); in both solid and in solution, the nitroimine form predominates.	2.08	1	0	nitroguanidine; one-carbon compound
dafachronic acid dafachronic acid: structure in first source. (5alpha)-3-oxocholestan-26-oic acid : A cholestanoid that is (5alpha)-cholestan-26-oic acid in which the hydrogens at position 3 are replaced by an oxo group.	2.11	1	0	3-oxo-5alpha-steroid; cholestanoid; dafachronic acids
nitrophenols Nitrophenols: PHENOLS carrying nitro group substituents.	2.35	2	0
3-methyluridine 3-methyluridine: isolated from normal human urine & is a minor constituent of tRNA form yeast, rat and human liver; structure	1.96	1	0
aldrin Aldrin: A highly poisonous substance that was formerly used as an insecticide. The manufacture and use has been discontinued in the U.S. (From Merck Index, 11th ed). aldrin : An organochlorine compound resulting from the Diels-Alder reaction of hexachlorocyclopentadiene with norbornadiene. A proinsecticide (by epoxidation of the non-chlorinated double bond to give dieldrin), it was widely used as an insecticide before being banned in the 1970s as a persistent organic pollutant.	1.95	1	0
vitamin b 12 Vitamin B 12: A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin B 12 from the soil and so are a poor source of the substance as compared with animal tissues. INTRINSIC FACTOR is important for the assimilation of vitamin B 12.	2.91	4	0
as 1411 AGRO 100: an antineoplastic agent that inhibits nuclear factor-kappaB activation; base sequence in first source	2.25	1	0
lysergic acid lysergic acid : An ergoline alkaloid comprising 6-methylergoline having additional unsaturation at the 9,10-position and a carboxy group at the 8-position.	2.06	1	0
validamycins validamycins: RN given refers to cpd with unknown MF; structure given in Merck Index, 9th ed, #9570 has been revised in fifth source; structure in fifth source; see also record for validamycin A. validamycins : Any of the inositol-derived beta-D-glucoside antibiotics produced by Streptomyces hygroscopicus.	3.11	1	0
cyclosporine Cyclosporine: A cyclic undecapeptide from an extract of soil fungi. It is a powerful immunosupressant with a specific action on T-lymphocytes. It is used for the prophylaxis of graft rejection in organ and tissue transplantation. (From Martindale, The Extra Pharmacopoeia, 30th ed).	2.04	1	0
orabase Orabase: used in therapy of oral mucosal ulcers	2.57	2	0
muramidase Muramidase: A basic enzyme that is present in saliva, tears, egg white, and many animal fluids. It functions as an antibacterial agent. The enzyme catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. EC 3.2.1.17.	3.26	6	0
chondroitin sulfates Chondroitin Sulfates: Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.	2.05	1	0
deoxyguanosine [no description available]	7.38	2	0	purine 2'-deoxyribonucleoside; purines 2'-deoxy-D-ribonucleoside	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
2'-deoxyguanosine 5'-phosphate 2'-deoxyguanosine 5'-phosphate: RN given refers to parent cpd.. 2'-deoxyguanosine 5'-monophosphate : A purine 2'-deoxyribonucleoside 5'-monophosphate having guanine as the nucleobase.	1.97	1	0	deoxyguanosine phosphate; guanyl deoxyribonucleotide; purine 2'-deoxyribonucleoside 5'-monophosphate	Escherichia coli metabolite; mouse metabolite
guanosine diphosphate Guanosine Diphosphate: A guanine nucleotide containing two phosphate groups esterified to the sugar moiety.	1.97	1	0	guanosine 5'-phosphate; purine ribonucleoside 5'-diphosphate	Escherichia coli metabolite; mouse metabolite; uncoupling protein inhibitor
guanine [no description available]	6.57	38	0	2-aminopurines; oxopurine; purine nucleobase	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
guanosine ribonucleoside : Any nucleoside where the sugar component is D-ribose.	4.29	3	0	guanosines; purines D-ribonucleoside	fundamental metabolite
folic acid folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin.	2.02	1	0	folic acids; N-acyl-amino acid	human metabolite; mouse metabolite; nutrient
7-methylguanine 7-methylguanine: RN given refers to unlabeled cpd; structure. 7-methylguanine : A methylguanine that is guanine substituted by a methyl group at position 7. It is a metabolite obtained during the methylation of DNA.. 2-imino-7-methyl-1,2,3,7-tetrahydro-6H-purin-6-one : A 7-methylguanine that is 1,2,3,7-tetrahydro-6H-purin-6-one substituted by an imino group at position 2 and a methyl group at position 7.. 2-amino-7-methyl-7H-purin-6-ol : A 7-methylguanine that is 7H-purine substituted by an amino group at position 2, a methyl group at position 7 and a hydroxy group at position 6.. 2-amino-7-methyl-1,7-dihydro-6H-purin-6-one : A 7-methylguanine that is 1,7-dihydro-6H-purin-6-one substituted by an amino group at position 2 and a methyl group at position 7.	2.37	2	0	7-methylguanine
olanzapine Olanzapine: A benzodiazepine derivative that binds SEROTONIN RECEPTORS; MUSCARINIC RECEPTORS; HISTAMINE H1 RECEPTORS; ADRENERGIC ALPHA-1 RECEPTORS; and DOPAMINE RECEPTORS. It is an antipsychotic agent used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER; and MAJOR DEPRESSIVE DISORDER; it may also reduce nausea and vomiting in patients undergoing chemotherapy.. olanzapine : A benzodiazepine that is 10H-thieno[2,3-b][1,5]benzodiazepine substituted by a methyl group at position 2 and a 4-methylpiperazin-1-yl group at position 4.	2.04	1	0	benzodiazepine; N-arylpiperazine; N-methylpiperazine	antiemetic; dopaminergic antagonist; histamine antagonist; muscarinic antagonist; second generation antipsychotic; serotonergic antagonist; serotonin uptake inhibitor
2'-deoxyguanosine 3',5'-diphosphate 2'-deoxyguanosine 3',5'-diphosphate: a zinc ion chelating agent	1.97	1	0
3,n(4)-ethanocytosine [no description available]	3.48	2	0	organic heterobicyclic compound	mutagen
n(7)-hydroxyethylguanine [no description available]	5.69	26	0
7-n-(2-oxoethyl)guanine [no description available]	1.96	1	0
eye [no description available]	3.96	4	0
maltodextrin maltodextrin : A dextrin in which the D-glucose units are linked by alpha-(1->4) glycosidic bonds.	2.02	1	0
acetylcellulose acetylcellulose: coating compound. cellulose acetate : A glucan derivative obtained through the esterification of cellulose by acetic anhydride or acetic acid, resulting in the substitution of some of the hydroxy groups of cellulose by acetyl groups. It is used in a variety of applications including base material for photographic film, clothing, membrane filters, coatings, food packaging, and as a frame material for eyeglasses.	2.44	2	0
vermiculite [no description available]	2.06	1	0
dinitrobenzenes Dinitrobenzenes: Benzene derivatives which are substituted with two nitro groups in the ortho, meta or para positions.	1.99	1	0

Condition	Relationship Strength	Studies	Trials
Angiospasm, Intracranial [description not available]	2.31	1	0
Anterior Choroidal Artery Infarction [description not available]	2.31	1	0
Brain Vascular Disorders [description not available]	2.31	1	0
Cerebral Infarction The formation of an area of NECROSIS in the CEREBRUM caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., INFARCTION, ANTERIOR CEREBRAL ARTERY), and etiology (e.g., embolic infarction).	7.31	1	0
Cerebrovascular Disorders A spectrum of pathological conditions of impaired blood flow in the brain. They can involve vessels (ARTERIES or VEINS) in the CEREBRUM, the CEREBELLUM, and the BRAIN STEM. Major categories include INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; BRAIN ISCHEMIA; CEREBRAL HEMORRHAGE; and others.	2.31	1	0
Vasospasm, Intracranial Constriction of arteries in the SKULL due to sudden, sharp, and often persistent smooth muscle contraction in blood vessels. Intracranial vasospasm results in reduced vessel lumen caliber, restricted blood flow to the brain, and BRAIN ISCHEMIA that may lead to hypoxic-ischemic brain injury (HYPOXIA-ISCHEMIA, BRAIN).	2.31	1	0
Electrolytes Substances that dissociate into two or more ions, to some extent, in water. Solutions of electrolytes thus conduct an electric current and can be decomposed by it (ELECTROLYSIS). (Grant & Hackh's Chemical Dictionary, 5th ed)	2.79	3	0
Cancer of Colon [description not available]	2.55	2	0
Colonic Neoplasms Tumors or cancer of the COLON.	2.55	2	0
Soft Tissue Neoplasms Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc.	2.41	2	0
Innate Inflammatory Response [description not available]	3.35	7	0
Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.	8.35	7	0
Blood Pressure, High [description not available]	2.41	1	0
Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	7.41	1	0
Benign Neoplasms [description not available]	11.23	73	1
Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.	11.23	73	1
Breast Cancer [description not available]	6.18	17	0
Breast Neoplasms Tumors or cancer of the human BREAST.	6.18	17	0
Extravascular Hemolysis [description not available]	4.44	23	0
Hemolysis The destruction of ERYTHROCYTES by many different causal agents such as antibodies, bacteria, chemicals, temperature, and changes in tonicity.	4.44	23	0
Bladder Cancer [description not available]	2.41	1	0
Leucocythaemia [description not available]	9.13	29	1
Urinary Bladder Neoplasms Tumors or cancer of the URINARY BLADDER.	2.41	1	0
Leukemia A progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006)	9.13	29	1
Abdominal Obesity [description not available]	2.41	1	0
Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).	7.41	1	0
Asthma, Bronchial [description not available]	3.24	6	0
Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).	3.24	6	0
Kidney Stones [description not available]	3.01	2	0
Kidney Calculi Stones in the KIDNEY, usually formed in the urine-collecting area of the kidney (KIDNEY PELVIS). Their sizes vary and most contains CALCIUM OXALATE.	3.01	2	0
Diffuse Mixed Small and Large Cell Lymphoma [description not available]	3.62	3	0
Lymphoma, Non-Hodgkin Any of a group of malignant tumors of lymphoid tissue that differ from HODGKIN DISEASE, being more heterogeneous with respect to malignant cell lineage, clinical course, prognosis, and therapy. The only common feature among these tumors is the absence of giant REED-STERNBERG CELLS, a characteristic of Hodgkin's disease.	3.62	3	0
Anaphylactic Reaction [description not available]	7.46	36	0
Eosinophilia, Tropical [description not available]	6.78	13	2
Anaphylaxis An acute hypersensitivity reaction due to exposure to a previously encountered ANTIGEN. The reaction may include rapidly progressing URTICARIA, respiratory distress, vascular collapse, systemic SHOCK, and death.	7.46	36	0
Eosinophilia Abnormal increase of EOSINOPHILS in the blood, tissues or organs.	6.78	13	2
Cells, Neoplasm Circulating [description not available]	2.6	1	0
Allergic Reaction [description not available]	6.04	28	0
Hypersensitivity Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.	6.04	28	0
Airflow Obstruction, Chronic [description not available]	3.42	2	0
Pulmonary Disease, Chronic Obstructive A disease of chronic diffuse irreversible airflow obstruction. Subcategories of COPD include CHRONIC BRONCHITIS and PULMONARY EMPHYSEMA.	3.42	2	0
ER-Negative PR-Negative HER2-Negative Breast Cancer [description not available]	2.6	1	0
Triple Negative Breast Neoplasms Breast neoplasms that do not express ESTROGEN RECEPTORS; PROGESTERONE RECEPTORS; and do not overexpress the NEU RECEPTOR/HER-2 PROTO-ONCOGENE PROTEIN.	2.6	1	0
Alexia [description not available]	2.6	1	0
Depression Depressive states usually of moderate intensity in contrast with MAJOR DEPRESSIVE DISORDER present in neurotic and psychotic disorders.	3.14	1	0
Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.	8.88	4	0
Experimental Mammary Neoplasms [description not available]	2.69	3	0
Respiration Disorders Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.	2.25	1	0
Hematologic Malignancies [description not available]	3.9	4	0
Cancer of Lung [description not available]	4.71	11	0
Diseases, Occupational [description not available]	11.43	125	1
Lung Neoplasms Tumors or cancer of the LUNG.	4.71	11	0
Hematologic Neoplasms Neoplasms located in the blood and blood-forming tissue (the bone marrow and lymphatic tissue). The commonest forms are the various types of LEUKEMIA, of LYMPHOMA, and of the progressive, life-threatening forms of the MYELODYSPLASTIC SYNDROMES.	3.9	4	0
2019 Novel Coronavirus Disease [description not available]	4.77	5	0
Abnormalities, Autosome [description not available]	7.63	43	0
Chromosomal Translocation [description not available]	5.3	9	0
Poisoning Used with drugs, chemicals, and industrial materials for human or animal poisoning, acute or chronic, whether the poisoning is accidental, occupational, suicidal, by medication error, or by environmental exposure.	2.66	3	0
Weight Gain Increase in BODY WEIGHT over existing weight.	7.71	3	0
Cancer of Skin [description not available]	2.69	3	0
Cutaneous T-Cell Lymphoma [description not available]	2.48	2	0
Skin Neoplasms Tumors or cancer of the SKIN.	2.69	3	0
Lymphoma, T-Cell, Cutaneous A group of lymphomas exhibiting clonal expansion of malignant T-lymphocytes arrested at varying stages of differentiation as well as malignant infiltration of the skin. MYCOSIS FUNGOIDES; SEZARY SYNDROME; LYMPHOMATOID PAPULOSIS; and PRIMARY CUTANEOUS ANAPLASTIC LARGE CELL LYMPHOMA are the best characterized of these disorders.	2.48	2	0
Alloxan Diabetes [description not available]	2.25	1	0
Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	4.52	9	0
Prosthesis Durability [description not available]	3.83	11	0
Reproductive Sterility [description not available]	2.66	3	0
Infertility A reduced or absent capacity to reproduce.	2.66	3	0
Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.	8.34	2	0
Health Care Associated Infection [description not available]	9.61	41	1
Cronobacter Infections [description not available]	2.54	2	0
Cross Infection Any infection which a patient contracts in a health-care institution.	9.61	41	1
Enterobacteriaceae Infections Infections with bacteria of the family ENTEROBACTERIACEAE.	2.54	2	0
Cell Transformation, Neoplastic Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.	4.18	6	0
Duncan Disease [description not available]	3.09	1	0
Lymphoproliferative Disorders Disorders characterized by proliferation of lymphoid tissue, general or unspecified.	3.09	1	0
Rheumatoid Arthritis [description not available]	2.17	1	0
Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated.	2.17	1	0
Complication, Postoperative [description not available]	4.16	17	0
Postoperative Complications Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	4.16	17	0
Anorectal Diseases [description not available]	2.17	1	0
Rectal Diseases Pathological developments in the RECTUM region of the large intestine (INTESTINE, LARGE).	2.17	1	0
Age-Related Macular Degeneration [description not available]	2.73	3	0
Macular Degeneration Degenerative changes in the RETINA usually of older adults which results in a loss of vision in the center of the visual field (the MACULA LUTEA) because of damage to the retina. It occurs in dry and wet forms.	2.73	3	0
Germinoblastoma [description not available]	4.41	8	0
Lymphoma A general term for various neoplastic diseases of the lymphoid tissue.	4.41	8	0
Infection, Postoperative Wound [description not available]	4.6	6	1
Diplopia A visual symptom in which a single object is perceived by the visual cortex as two objects rather than one. Disorders associated with this condition include REFRACTIVE ERRORS; STRABISMUS; OCULOMOTOR NERVE DISEASES; TROCHLEAR NERVE DISEASES; ABDUCENS NERVE DISEASES; and diseases of the BRAIN STEM and OCCIPITAL LOBE.	2.1	1	0
Blow Out Fracture [description not available]	2.1	1	0
Enophthalmos Recession of the eyeball into the orbit.	2.1	1	0
Acute Disease Disease having a short and relatively severe course.	3.23	6	0
Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	5.97	25	1
Acute Bacterial Prostatitis [description not available]	2.1	1	0
Prostatitis Infiltration of inflammatory cells into the parenchyma of PROSTATE. The subtypes are classified by their varied laboratory analysis, clinical presentation and response to treatment.	2.1	1	0
Carcinoma, Anaplastic [description not available]	2.65	3	0
Epithelial Neoplasms [description not available]	2.1	1	0
Carcinoma A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. It is a histological type of neoplasm and not a synonym for cancer.	2.65	3	0
Thalassemias [description not available]	2.11	1	0
Thalassemia A group of hereditary hemolytic anemias in which there is decreased synthesis of one or more hemoglobin polypeptide chains. There are several genetic types with clinical pictures ranging from barely detectable hematologic abnormality to severe and fatal anemia.	2.11	1	0
ACL Injuries [description not available]	2.11	1	0
Disease Resistance The capacity of an organism to defend itself against pathological processes or the agents of those processes. This most often involves innate immunity whereby the organism responds to pathogens in a generic way. The term disease resistance is used most frequently when referring to plants.	2.13	1	0
Infectious Diseases [description not available]	2.13	1	0
Communicable Diseases An illness caused by an infectious agent or its toxins that occurs through the direct or indirect transmission of the infectious agent or its products from an infected individual or via an animal, vector or the inanimate environment to a susceptible animal or human host.	2.13	1	0
Adhesions, Tissue [description not available]	2.13	1	0
Cirrhosis [description not available]	2.73	3	0
Fibrosis Any pathological condition where fibrous connective tissue invades any organ, usually as a consequence of inflammation or other injury.	2.73	3	0
Neuroblastoma A common neoplasm of early childhood arising from neural crest cells in the sympathetic nervous system, and characterized by diverse clinical behavior, ranging from spontaneous remission to rapid metastatic progression and death. This tumor is the most common intraabdominal malignancy of childhood, but it may also arise from thorax, neck, or rarely occur in the central nervous system. Histologic features include uniform round cells with hyperchromatic nuclei arranged in nests and separated by fibrovascular septa. Neuroblastomas may be associated with the opsoclonus-myoclonus syndrome. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2099-2101; Curr Opin Oncol 1998 Jan;10(1):43-51)	2.13	1	0
Infection [description not available]	2.4	2	0
Infections Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases.	2.4	2	0
Glial Cell Tumors [description not available]	2.91	4	0
Glioma Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21)	2.91	4	0
Allergic Contact Dermatitis [description not available]	8.13	5	0
Dermatitis, Eczematous [description not available]	2.42	2	0
Delayed Hypersensitivity [description not available]	2.67	3	0
Atopic Hypersensitivity [description not available]	5.31	13	0
Dermatitis, Occupational A recurrent contact dermatitis caused by substances found in the work place.	4.76	12	0
Allergy, Latex [description not available]	2.49	2	0
Hand Dermatosis [description not available]	2.42	2	0
Eczema A pruritic papulovesicular dermatitis occurring as a reaction to many endogenous and exogenous agents (Dorland, 27th ed).	2.42	2	0
Hand Dermatoses Skin diseases involving the HANDS.	2.42	2	0
Dermatitis, Allergic Contact A contact dermatitis due to allergic sensitization to various substances. These substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure.	3.13	5	0
Enterocele An intestinal HERNIA.	2.13	1	0
Hernia Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the ABDOMINAL WALL or the respiratory DIAPHRAGM. Hernias may be internal, external, congenital, or acquired.	2.13	1	0
B16 Melanoma [description not available]	2.15	1	0
Osteolysis Dissolution of bone that particularly involves the removal or loss of calcium.	2.42	2	0
Calculosis [description not available]	2.03	1	0
Smear Layer Adherent debris produced when cutting the enamel or dentin in cavity preparation. It is about 1 micron thick and its composition reflects the underlying dentin, although different quantities and qualities of smear layer can be produced by the various instrumentation techniques. Its function is presumed to be protective, as it lowers dentin permeability. However, it masks the underlying dentin and interferes with attempts to bond dental material to the dentin.	3.8	2	1
Dental Leakage The seepage of fluids, debris, and micro-organisms between the walls of a prepared dental cavity and the restoration.	4.12	3	1
Canine Diseases [description not available]	2.92	4	0
Hypermobility, Joint [description not available]	2.72	3	0
Anesthesia A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.	4.56	10	0
Bacterial Infections, Gram-Positive [description not available]	2.05	1	0
Gram-Positive Bacterial Infections Infections caused by bacteria that retain the crystal violet stain (positive) when treated by the gram-staining method.	2.05	1	0
Grippe [description not available]	2.36	2	0
Influenza, Human An acute viral infection in humans involving the respiratory tract. It is marked by inflammation of the NASAL MUCOSA; the PHARYNX; and conjunctiva, and by headache and severe, often generalized, myalgia.	2.36	2	0
Foreign-Body Reaction Chronic inflammation and granuloma formation around irritating foreign bodies.	3.09	5	0
Allergy, Drug [description not available]	6.08	21	0
Drug Hypersensitivity Immunologically mediated adverse reactions to medicinal substances used legally or illegally.	6.08	21	0
Diabetes Mellitus, Adult-Onset [description not available]	2.06	1	0
Cardiac Failure [description not available]	2.06	1	0
Insulin Sensitivity [description not available]	2.06	1	0
Heart Disease, Ischemic [description not available]	2.06	1	0
Diabetes Mellitus, Type 2 A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.	2.06	1	0
Heart Failure A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.	2.06	1	0
Insulin Resistance Diminished effectiveness of INSULIN in lowering blood sugar levels: requiring the use of 200 units or more of insulin per day to prevent HYPERGLYCEMIA or KETOSIS.	2.06	1	0
Myocardial Ischemia A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).	2.06	1	0
Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	12.53	39	0
Infections, Prosthesis-Related [description not available]	3.8	2	0
Symptom Cluster [description not available]	4.46	5	0
Syndrome A characteristic symptom complex.	9.46	5	0
Cystic Hygroma Colli [description not available]	2.06	1	0
Cleft Spine [description not available]	2.7	3	0
Blood Clot [description not available]	2.89	4	0
Thrombosis Formation and development of a thrombus or blood clot in the blood vessel.	2.89	4	0
Carcinoma, Ehrlich Tumor A transplantable, poorly differentiated malignant tumor which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms.	2.07	1	0
Inner Ear Disease [description not available]	2.07	1	0
Labyrinth Diseases Pathological processes of the inner ear (LABYRINTH) which contains the essential apparatus of hearing (COCHLEA) and balance (SEMICIRCULAR CANALS).	2.07	1	0
Neuroendocrine Tumors Tumors whose cells possess secretory granules and originate from the neuroectoderm, i.e., the cells of the ectoblast or epiblast that program the neuroendocrine system. Common properties across most neuroendocrine tumors include ectopic hormone production (often via APUD CELLS), the presence of tumor-associated antigens, and isozyme composition.	2.07	1	0
Uveitis, Anterior Inflammation of the anterior uvea comprising the iris, angle structures, and the ciliary body. Manifestations of this disorder include ciliary injection, exudation into the anterior chamber, iris changes, and adhesions between the iris and lens (posterior synechiae). Intraocular pressure may be increased or reduced.	2.07	1	0
Bowel Diseases, Inflammatory [description not available]	2.08	1	0
Colitis Inflammation of the COLON section of the large intestine (INTESTINE, LARGE), usually with symptoms such as DIARRHEA (often with blood and mucus), ABDOMINAL PAIN, and FEVER.	2.08	1	0
Inflammatory Bowel Diseases Chronic, non-specific inflammation of the GASTROINTESTINAL TRACT. Etiology may be genetic or environmental. This term includes CROHN DISEASE and ULCERATIVE COLITIS.	2.08	1	0
Astrocytoma, Grade IV [description not available]	2.08	1	0
Glioblastoma A malignant form of astrocytoma histologically characterized by pleomorphism of cells, nuclear atypia, microhemorrhage, and necrosis. They may arise in any region of the central nervous system, with a predilection for the cerebral hemispheres, basal ganglia, and commissural pathways. Clinical presentation most frequently occurs in the fifth or sixth decade of life with focal neurologic signs or seizures.	2.08	1	0
Arthritis, Degenerative [description not available]	2.01	1	0
Osteoarthritis A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans.	2.01	1	0
Delayed Effects, Prenatal Exposure [description not available]	3.82	4	0
Chronic Kidney Failure [description not available]	4.27	7	0
Kidney Failure, Chronic The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION.	4.27	7	0
Adenocarcinoma, Basal Cell [description not available]	2.88	4	0
Adenoma, Basal Cell [description not available]	2.43	2	0
Carcinoma, Epidermoid [description not available]	2.67	3	0
Cancer of the Uterus [description not available]	2.43	2	0
Adenocarcinoma A malignant epithelial tumor with a glandular organization.	2.88	4	0
Adenoma A benign epithelial tumor with a glandular organization.	2.43	2	0
Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed)	2.67	3	0
Uterine Neoplasms Tumors or cancer of the UTERUS.	7.43	2	0
Cadaver A dead body, usually a human body.	3.21	6	0
Mumps An acute infectious disease caused by RUBULAVIRUS, spread by direct contact, airborne droplet nuclei, fomites contaminated by infectious saliva, and perhaps urine, and usually seen in children under the age of 15, although adults may also be affected. (From Dorland, 28th ed)	6.93	1	0
Encephalitis, Polio [description not available]	2.34	2	0
Vaccinia The cutaneous and occasional systemic reactions associated with vaccination using smallpox (variola) vaccine.	1.93	1	0
Poliomyelitis An acute infectious disease of humans, particularly children, caused by any of three serotypes of human poliovirus (POLIOVIRUS). Usually the infection is limited to the gastrointestinal tract and nasopharynx, and is often asymptomatic. The central nervous system, primarily the spinal cord, may be affected, leading to rapidly progressive paralysis, coarse FASCICULATION and hyporeflexia. Motor neurons are primarily affected. Encephalitis may also occur. The virus replicates in the nervous system, and may cause significant neuronal loss, most notably in the spinal cord. A rare related condition, nonpoliovirus poliomyelitis, may result from infections with nonpoliovirus enteroviruses. (From Adams et al., Principles of Neurology, 6th ed, pp764-5)	2.34	2	0
Foot and Mouth Disease [description not available]	2.34	2	0
Narcosis A state of depressed CENTRAL NERVOUS SYSTEM marked by stupor or insensibility.	6.93	1	0
Abnormalities, Congenital [description not available]	2.35	2	0
Hiccough [description not available]	1.93	1	0
Ache [description not available]	1.93	1	0
Pain An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS.	6.93	1	0
Dermatoses [description not available]	2.85	4	0
Skin Diseases Diseases involving the DERMIS or EPIDERMIS.	2.85	4	0
B Virus Infection [description not available]	1.93	1	0
Experimental Neoplasms [description not available]	5.8	16	0
Diseases of Immune System [description not available]	1.93	1	0
Immune System Diseases Disorders caused by abnormal or absent immunologic mechanisms, whether humoral, cell-mediated, or both.	1.93	1	0
Infections, Respiratory [description not available]	3.26	2	0
Respiratory Tract Infections Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases.	3.26	2	0
Contact Dermatitis [description not available]	10.48	16	0
Breathlessness [description not available]	1.93	1	0
Gas Poisoning Poisoning that results from exposure to gases such as CARBON MONOXIDE; NOBLE GASES; OXYGEN; or NATURAL GAS.	1.93	1	0
Bilateral Headache [description not available]	3.8	4	0
Long Sleeper Syndrome [description not available]	1.93	1	0
Emesis [description not available]	3.56	3	0
Dermatitis Any inflammation of the skin.	7.34	2	0
Dermatitis, Contact A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms.	5.48	16	0
Diarrhea An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.	1.93	1	0
Dyspnea Difficult or labored breathing.	1.93	1	0
Eye Manifestations Ocular disorders attendant upon non-ocular disease or injury.	1.93	1	0
Headache The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation of a wide variety of HEADACHE DISORDERS.	3.8	4	0
Sleep Wake Disorders Abnormal sleep-wake schedule or pattern associated with the CIRCADIAN RHYTHM which affect the length, timing, and/or rigidity of the sleep-wake cycle relative to the day-night cycle.	1.93	1	0
Vomiting The forcible expulsion of the contents of the STOMACH through the MOUTH.	3.56	3	0
Burns Injuries to tissues caused by contact with heat, steam, chemicals (BURNS, CHEMICAL), electricity (BURNS, ELECTRIC), or the like.	3.55	3	0
Hemorrhagic Diathesis [description not available]	1.94	1	0
Cancer of Kidney [description not available]	1.94	1	0
Cancer of Liver [description not available]	3.79	4	0
Cancer of Ovary [description not available]	2.66	3	0
Sarcoma, Epithelioid [description not available]	3.27	2	0
Hemorrhagic Disorders Spontaneous or near spontaneous bleeding caused by a defect in clotting mechanisms (BLOOD COAGULATION DISORDERS) or another abnormality causing a structural flaw in the blood vessels (HEMOSTATIC DISORDERS).	1.94	1	0
Kidney Neoplasms Tumors or cancers of the KIDNEY.	1.94	1	0
Liver Neoplasms Tumors or cancer of the LIVER.	3.79	4	0
Ovarian Neoplasms Tumors or cancer of the OVARY. These neoplasms can be benign or malignant. They are classified according to the tissue of origin, such as the surface EPITHELIUM, the stromal endocrine cells, and the totipotent GERM CELLS.	2.66	3	0
Sarcoma A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant.	3.27	2	0
Behavior Disorders [description not available]	1.94	1	0
Mental Disorders Psychiatric illness or diseases manifested by breakdowns in the adaptational process expressed primarily as abnormalities of thought, feeling, and behavior producing either distress or impairment of function.	1.94	1	0
Encephalomyelitis, Inflammatory [description not available]	1.93	1	0
Encephalitis, Equine [description not available]	1.93	1	0
Encephalomyelitis A general term indicating inflammation of the BRAIN and SPINAL CORD, often used to indicate an infectious process, but also applicable to a variety of autoimmune and toxic-metabolic conditions. There is significant overlap regarding the usage of this term and ENCEPHALITIS in the literature.	1.93	1	0
Cardiac Death [description not available]	1.93	1	0
Dermatomycoses Superficial infections of the skin or its appendages by any of various fungi.	2.34	2	0
Infections, Staphylococcal [description not available]	2.35	2	0
Staphylococcal Infections Infections with bacteria of the genus STAPHYLOCOCCUS.	2.35	2	0
Chromosomal Breakage [description not available]	1.93	1	0
Brain Hemorrhage [description not available]	3.4	1	1
Intracranial Hemorrhages Bleeding within the SKULL, including hemorrhages in the brain and the three membranes of MENINGES. The escape of blood often leads to the formation of HEMATOMA in the cranial epidural, subdural, and subarachnoid spaces.	3.4	1	1
Airway Obstruction Any hindrance to the passage of air into and out of the lungs.	2.01	1	0
Complication, Intraoperative [description not available]	2.01	1	0
Chromosome-Defective Micronuclei [description not available]	3.49	8	0
Aspiculariasis [description not available]	2.02	1	0
Rodent Diseases Diseases of rodents of the order RODENTIA. This term includes diseases of Sciuridae (squirrels), Geomyidae (gophers), Heteromyidae (pouched mice), Castoridae (beavers), Cricetidae (rats and mice), Muridae (Old World rats and mice), Erethizontidae (porcupines), and Caviidae (guinea pigs).	2.43	2	0
Alcohol Drinking Behaviors associated with the ingesting of ALCOHOLIC BEVERAGES, including social drinking.	2.02	1	0
Feline Leukemia [description not available]	7.02	1	0
Cat Diseases Diseases of the domestic cat (Felis catus or F. domesticus). This term does not include diseases of the so-called big cats such as CHEETAHS; LIONS; tigers, cougars, panthers, leopards, and other Felidae for which the heading CARNIVORA is used.	2.02	1	0
Alveolar Bone Atrophy [description not available]	2.02	1	0
Sterility, Female [description not available]	3.81	2	0
Infertility, Female Diminished or absent ability of a female to achieve conception.	3.81	2	0
Nausea An unpleasant sensation in the stomach usually accompanied by the urge to vomit. Common causes are early pregnancy, sea and motion sickness, emotional stress, intense pain, food poisoning, and various enteroviruses.	2.93	1	0
Itching [description not available]	2.4	2	0
Pruritus An intense itching sensation that produces the urge to rub or scratch the skin to obtain relief.	2.4	2	0
Cyst [description not available]	2.02	1	0
Acute Liver Injury, Drug-Induced [description not available]	3.06	5	0
Cardiomyopathies, Primary [description not available]	2.02	1	0
Nervous System Disorders [description not available]	5.47	11	0
Critical Illness A disease or state in which death is possible or imminent.	2.02	1	0
Cardiomyopathies A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).	2.02	1	0
Nervous System Diseases Diseases of the central and peripheral nervous system. This includes disorders of the brain, spinal cord, cranial nerves, peripheral nerves, nerve roots, autonomic nervous system, neuromuscular junction, and muscle.	5.47	11	0
Respiratory Tract Diseases Diseases involving the RESPIRATORY SYSTEM.	2.02	1	0
Chemical and Drug Induced Liver Injury A spectrum of clinical liver diseases ranging from mild biochemical abnormalities to ACUTE LIVER FAILURE, caused by drugs, drug metabolites, herbal and dietary supplements and chemicals from the environment.	3.06	5	0
Encephalopathy, Toxic [description not available]	2.03	1	0
Coronary Restenosis Recurrent narrowing or constriction of a coronary artery following surgical procedures performed to alleviate a prior obstruction.	2.03	1	0
Abortion, Tubal [description not available]	5.28	9	0
Abnormalities, Drug-Induced Congenital abnormalities caused by medicinal substances or drugs of abuse given to or taken by the mother, or to which she is inadvertently exposed during the manufacture of such substances. The concept excludes abnormalities resulting from exposure to non-medicinal chemicals in the environment.	5.93	14	0
Abortion, Spontaneous Expulsion of the product of FERTILIZATION before completing the term of GESTATION and without deliberate interference.	5.28	9	0
Animal Mammary Carcinoma [description not available]	2.03	1	0
Neoplasms, Sebaceous Gland [description not available]	2.03	1	0
Infections, Pneumococcal [description not available]	2.03	1	0
Pneumococcal Infections Infections with bacteria of the species STREPTOCOCCUS PNEUMONIAE.	2.03	1	0
Demineralization, Tooth [description not available]	2.03	1	0
Cancer of Nose [description not available]	3.8	2	0
Brain Disorders [description not available]	2.68	3	0
Brain Diseases Pathologic conditions affecting the BRAIN, which is composed of the intracranial components of the CENTRAL NERVOUS SYSTEM. This includes (but is not limited to) the CEREBRAL CORTEX; intracranial white matter; BASAL GANGLIA; THALAMUS; HYPOTHALAMUS; BRAIN STEM; and CEREBELLUM.	2.68	3	0
Exanthem [description not available]	2.04	1	0
Exanthema Diseases in which skin eruptions or rashes are a prominent manifestation. Classically, six such diseases were described with similar rashes; they were numbered in the order in which they were reported. Only the fourth (Duke's disease), fifth (ERYTHEMA INFECTIOSUM), and sixth (EXANTHEMA SUBITUM) numeric designations survive as occasional synonyms in current terminology.	2.04	1	0
Injuries, Soft Tissue [description not available]	1.92	1	0
Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	5.54	17	1
Hematuria Presence of blood in the urine.	1.94	1	0
Kidney Diseases Pathological processes of the KIDNEY or its component tissues.	2.87	4	0
Besnoitiasis [description not available]	1.94	1	0
Poultry Diseases Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild.	1.94	1	0
Burns, Chemical Burns caused by contact with or exposure to CAUSTICS or strong ACIDS.	4.58	10	0
Dermatitis Medicamentosa [description not available]	2.38	2	0
Atrophy, Muscle [description not available]	2.36	2	0
Nerve Pain [description not available]	1.96	1	0
Peripheral Nerve Diseases [description not available]	3.98	14	0
Muscular Atrophy Derangement in size and number of muscle fibers occurring with aging, reduction in blood supply, or following immobilization, prolonged weightlessness, malnutrition, and particularly in denervation.	2.36	2	0
Neuralgia Intense or aching pain that occurs along the course or distribution of a peripheral or cranial nerve.	1.96	1	0
Peripheral Nervous System Diseases Diseases of the peripheral nerves external to the brain and spinal cord, which includes diseases of the nerve roots, ganglia, plexi, autonomic nerves, sensory nerves, and motor nerves.	3.98	14	0
Remission, Spontaneous A spontaneous diminution or abatement of a disease over time, without formal treatment.	1.96	1	0
Blood Diseases [description not available]	2.38	2	0
Hematologic Diseases Disorders of the blood and blood forming tissues.	2.38	2	0
Proteinuria The presence of proteins in the urine, an indicator of KIDNEY DISEASES.	1.96	1	0
Nicotine Addiction [description not available]	3.28	2	0
Tobacco Use Disorder Tobacco used to the detriment of a person's health or social functioning. Tobacco dependence is included.	3.28	2	0
Viral Diseases [description not available]	4.92	6	0
Virus Diseases A general term for diseases caused by viruses.	4.92	6	0
Bacterial Disease [description not available]	4.59	6	0
Hepatitis B Virus Infection [description not available]	4.59	6	0
Back Injuries General or unspecified injuries to the posterior part of the trunk. It includes injuries to the muscles of the back.	1.96	1	0
Laboratory Infection Accidentally acquired infection in laboratory workers.	3.56	3	0
Bacterial Infections Infections by bacteria, general or unspecified.	4.59	6	0
Hepatitis B INFLAMMATION of the LIVER in humans caused by a member of the ORTHOHEPADNAVIRUS genus, HEPATITIS B VIRUS. It is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact.	4.59	6	0
Benign Neoplasms, Brain [description not available]	4.86	8	0
Peritoneal Carcinomatosis [description not available]	3.57	3	0
Brain Neoplasms Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.	4.86	8	0
Mesothelioma A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)	3.57	3	0
Peritoneal Neoplasms Tumors or cancer of the PERITONEUM.	3.57	3	0
Amyotonia Congenita [description not available]	1.96	1	0
Neuromuscular Diseases A general term encompassing lower MOTOR NEURON DISEASE; PERIPHERAL NERVOUS SYSTEM DISEASES; and certain MUSCULAR DISEASES. Manifestations include MUSCLE WEAKNESS; FASCICULATION; muscle ATROPHY; SPASM; MYOKYMIA; MUSCLE HYPERTONIA, myalgias, and MUSCLE HYPOTONIA.	1.96	1	0
Delirium of Mixed Origin [description not available]	1.96	1	0
Drug Withdrawal Symptoms [description not available]	1.96	1	0
Delirium A disorder characterized by CONFUSION; inattentiveness; disorientation; ILLUSIONS; HALLUCINATIONS; agitation; and in some instances autonomic nervous system overactivity. It may result from toxic/metabolic conditions or structural brain lesions. (From Adams et al., Principles of Neurology, 6th ed, pp411-2)	6.96	1	0
Substance Withdrawal Syndrome Physiological and psychological symptoms associated with withdrawal from the use of a drug after prolonged administration or habituation. The concept includes withdrawal from smoking or drinking, as well as withdrawal from an administered drug.	1.96	1	0
Equine Diseases [description not available]	2.36	2	0
Labor, Premature [description not available]	2.38	2	0
Edema, Pulmonary [description not available]	2.37	2	0
Pulmonary Edema Excessive accumulation of extravascular fluid in the lung, an indication of a serious underlying disease or disorder. Pulmonary edema prevents efficient PULMONARY GAS EXCHANGE in the PULMONARY ALVEOLI, and can be life-threatening.	2.37	2	0
Chemical Dependence [description not available]	2.65	3	0
Substance-Related Disorders Disorders related to substance use or abuse.	2.65	3	0
Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	2.37	2	0
Uveitis Inflammation of part or all of the uvea, the middle (vascular) tunic of the eye, and commonly involving the other tunics (sclera and cornea, and the retina). (Dorland, 27th ed)	1.96	1	0
CJD (Creutzfeldt-Jakob Disease) [description not available]	2.87	1	0
Pachymeningitis [description not available]	2.87	1	0
Creutzfeldt-Jakob Syndrome A rare transmissible encephalopathy most prevalent between the ages of 50 and 70 years. Affected individuals may present with sleep disturbances, personality changes, ATAXIA; APHASIA, visual loss, weakness, muscle atrophy, MYOCLONUS, progressive dementia, and death within one year of disease onset. A familial form exhibiting autosomal dominant inheritance and a new variant CJD (potentially associated with ENCEPHALOPATHY, BOVINE SPONGIFORM) have been described. Pathological features include prominent cerebellar and cerebral cortical spongiform degeneration and the presence of PRIONS. (From N Engl J Med, 1998 Dec 31;339(27))	2.87	1	0
Meningitis Inflammation of the coverings of the brain and/or spinal cord, which consist of the PIA MATER; ARACHNOID; and DURA MATER. Infections (viral, bacterial, and fungal) are the most common causes of this condition, but subarachnoid hemorrhage (HEMORRHAGES, SUBARACHNOID), chemical irritation (chemical MENINGITIS), granulomatous conditions, neoplastic conditions (CARCINOMATOUS MENINGITIS), and other inflammatory conditions may produce this syndrome. (From Joynt, Clinical Neurology, 1994, Ch24, p6)	2.87	1	0
Pulmonary Consumption [description not available]	2.37	2	0
Tuberculosis, Pulmonary MYCOBACTERIUM infections of the lung.	2.37	2	0
Bronchospasm [description not available]	1.96	1	0
Hives [description not available]	2.65	3	0
Bronchial Spasm Spasmodic contraction of the smooth muscle of the bronchi.	1.96	1	0
Urticaria A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress.	2.65	3	0
Angiitis [description not available]	1.95	1	0
Vasculitis Inflammation of any one of the blood vessels, including the ARTERIES; VEINS; and rest of the vasculature system in the body.	1.95	1	0
Tracheal Stenosis A pathological narrowing of the TRACHEA.	7.65	3	0
Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply.	2.86	4	0
Cataract, Membranous [description not available]	3.98	5	0
Cataract Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)	3.98	5	0
Central Nervous System Disease [description not available]	2.66	3	0
Central Nervous System Diseases Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord.	2.66	3	0
Fetal Resorption The disintegration and assimilation of the dead FETUS in the UTERUS at any stage after the completion of organogenesis which, in humans, is after the 9th week of GESTATION. It does not include embryo resorption (see EMBRYO LOSS).	2.38	2	0
Carcinoma, Intraepithelial [description not available]	1.96	1	0
Lymph Node Metastasis [description not available]	1.96	1	0
Papilloma, Squamous Cell [description not available]	2.36	2	0
Cancer of Stomach [description not available]	4.13	6	0
Carcinoma in Situ A lesion with cytological characteristics associated with invasive carcinoma but the tumor cells are confined to the epithelium of origin, without invasion of the basement membrane.	1.96	1	0
Papilloma A circumscribed benign epithelial tumor projecting from the surrounding surface; more precisely, a benign epithelial neoplasm consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells. (Stedman, 25th ed)	2.36	2	0
Stomach Neoplasms Tumors or cancer of the STOMACH.	4.13	6	0
Alcohol Abuse [description not available]	2.65	3	0
Alcoholism A primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. Each of these symptoms may be continuous or periodic. (Morse & Flavin for the Joint Commission of the National Council on Alcoholism and Drug Dependence and the American Society of Addiction Medicine to Study the Definition and Criteria for the Diagnosis of Alcoholism: in JAMA 1992;268:1012-4)	2.65	3	0
Fibrosarcoma A sarcoma derived from deep fibrous tissue, characterized by bundles of immature proliferating fibroblasts with variable collagen formation, which tends to invade locally and metastasize by the bloodstream. (Stedman, 25th ed)	1.96	1	0
Pyrexia [description not available]	3.56	3	0
Fever An abnormal elevation of body temperature, usually as a result of a pathologic process.	3.56	3	0
Eye Disorders [description not available]	2.64	3	0
Eye Diseases Diseases affecting the eye.	2.64	3	0
Iritis Inflammation of the iris characterized by circumcorneal injection, aqueous flare, keratotic precipitates, and constricted and sluggish pupil along with discoloration of the iris.	2.35	2	0
Corneal Diseases Diseases of the cornea.	1.95	1	0
Anasarca [description not available]	2.86	4	0
Edema Abnormal fluid accumulation in TISSUES or body cavities. Most cases of edema are present under the SKIN in SUBCUTANEOUS TISSUE.	2.86	4	0
Intraocular Pressure The pressure of the fluids in the eye.	2.38	2	0
Mandibular Neoplasms Tumors or cancer of the MANDIBLE.	2.37	2	0
Cancer, Radiation-Induced [description not available]	2.68	3	0
Granuloma, Hodgkin [description not available]	2.39	2	0
Hodgkin Disease A malignant disease characterized by progressive enlargement of the lymph nodes, spleen, and general lymphoid tissue. In the classical variant, giant usually multinucleate Hodgkin's and REED-STERNBERG CELLS are present; in the nodular lymphocyte predominant variant, lymphocytic and histiocytic cells are seen.	2.39	2	0
Adverse Drug Event [description not available]	3.29	2	0
Drug-Related Side Effects and Adverse Reactions Disorders that result from the intended use of PHARMACEUTICAL PREPARATIONS. Included in this heading are a broad variety of chemically-induced adverse conditions due to toxicity, DRUG INTERACTIONS, and metabolic effects of pharmaceuticals.	3.29	2	0
Aqueductal Stenosis [description not available]	1.98	1	0
Bacterial Eye Infections [description not available]	1.98	1	0
Keratitis Inflammation of the cornea.	1.98	1	0
Pseudarthrosis A pathologic entity characterized by deossification of a weight-bearing long bone, followed by bending and pathologic fracture, with inability to form normal BONY CALLUS leading to existence of the false joint that gives the condition its name. (Dorland, 27th ed)	1.98	1	0
Complications, Hematologic Pregnancy [description not available]	2.9	1	0
Astigmatism Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it. (Dorland, 27th ed)	1.98	1	0
Nearsightedness [description not available]	1.98	1	0
Myopia A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness.	1.98	1	0
Neoplasms, Nervous System [description not available]	2.9	1	0
Cancer of Pancreas [description not available]	3.3	2	0
Pancreatic Neoplasms Tumors or cancer of the PANCREAS. Depending on the types of ISLET CELLS present in the tumors, various hormones can be secreted: GLUCAGON from PANCREATIC ALPHA CELLS; INSULIN from PANCREATIC BETA CELLS; and SOMATOSTATIN from the SOMATOSTATIN-SECRETING CELLS. Most are malignant except the insulin-producing tumors (INSULINOMA).	3.3	2	0
Flushing A transient reddening of the face that may be due to fever, certain drugs, exertion, or stress.	1.98	1	0
Nerve Degeneration Loss of functional activity and trophic degeneration of nerve axons and their terminal arborizations following the destruction of their cells of origin or interruption of their continuity with these cells. The pathology is characteristic of neurodegenerative diseases. Often the process of nerve degeneration is studied in research on neuroanatomical localization and correlation of the neurophysiology of neural pathways.	3.36	7	0
Lymphatic Diseases Diseases of LYMPH; LYMPH NODES; or LYMPHATIC VESSELS.	3.29	2	0
Aneuploid [description not available]	1.99	1	0
Dermatitis, Irritant A non-allergic contact dermatitis caused by prolonged exposure to irritants and not explained by delayed hypersensitivity mechanisms.	1.98	1	0
Muscle Disorders [description not available]	1.99	1	0
Sensation Disorders Disorders of the special senses (i.e., VISION; HEARING; TASTE; and SMELL) or somatosensory system (i.e., afferent components of the PERIPHERAL NERVOUS SYSTEM).	1.99	1	0
Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE.	1.99	1	0
Kidney Failure A severe irreversible decline in the ability of kidneys to remove wastes, concentrate URINE, and maintain ELECTROLYTE BALANCE; BLOOD PRESSURE; and CALCIUM metabolism.	2.9	1	0
Renal Insufficiency Conditions in which the KIDNEYS perform below the normal level in the ability to remove wastes, concentrate URINE, and maintain ELECTROLYTE BALANCE; BLOOD PRESSURE; and CALCIUM metabolism. Renal insufficiency can be classified by the degree of kidney damage (as measured by the level of PROTEINURIA) and reduction in GLOMERULAR FILTRATION RATE.	2.9	1	0
Bone Diseases Diseases of BONES.	1.99	1	0
Cryptosporidium Infection [description not available]	1.99	1	0
Cryptosporidiosis Intestinal infection with organisms of the genus CRYPTOSPORIDIUM. It occurs in both animals and humans. Symptoms include severe DIARRHEA.	1.99	1	0
Radius Fractures Fractures of the RADIUS.	1.99	1	0
Fetal Death Death of the developing young in utero. BIRTH of a dead FETUS is STILLBIRTH.	2.89	4	0
Angiosarcoma [description not available]	2.91	1	0
Cancer of Larynx [description not available]	3.28	2	0
Cancer of Nasopharynx [description not available]	2.91	1	0
Hemangiosarcoma A rare malignant neoplasm characterized by rapidly proliferating, extensively infiltrating, anaplastic cells derived from blood vessels and lining irregular blood-filled or lumpy spaces. (Stedman, 25th ed)	2.91	1	0
Laryngeal Neoplasms Cancers or tumors of the LARYNX or any of its parts: the GLOTTIS; EPIGLOTTIS; LARYNGEAL CARTILAGES; LARYNGEAL MUSCLES; and VOCAL CORDS.	3.28	2	0
Nasopharyngeal Neoplasms Tumors or cancer of the NASOPHARYNX.	2.91	1	0
Breast Cancer, Male [description not available]	1.99	1	0
Breast Neoplasms, Male Any neoplasms of the male breast. These occur infrequently in males in developed countries, the incidence being about 1% of that in females.	1.99	1	0
Uremia A clinical syndrome associated with the retention of renal waste products or uremic toxins in the blood. It is usually the result of RENAL INSUFFICIENCY. Most uremic toxins are end products of protein or nitrogen CATABOLISM, such as UREA or CREATININE. Severe uremia can lead to multiple organ dysfunctions with a constellation of symptoms.	3.79	2	1
Curling Ulcer Acute stress DUODENAL ULCER, usually observed in patients with extensive third-degree burns.	1.99	1	0
Gastric Ulcer [description not available]	1.99	1	0
Duodenal Ulcer A PEPTIC ULCER located in the DUODENUM.	1.99	1	0
Stomach Ulcer Ulceration of the GASTRIC MUCOSA due to contact with GASTRIC JUICE. It is often associated with HELICOBACTER PYLORI infection or consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).	1.99	1	0
Koch's Disease [description not available]	2.36	2	0
Tuberculosis Any of the infectious diseases of man and other animals caused by species of MYCOBACTERIUM TUBERCULOSIS.	2.36	2	0
Emergencies Situations or conditions requiring immediate intervention to avoid serious adverse results.	6.96	1	0
Genetic Predisposition [description not available]	2	1	0
Carcinoma 256, Walker A transplantable carcinoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. (Stedman, 25th ed)	2	1	0
Infections, Retroviridae [description not available]	2	1	0
Fibroma, Shope [description not available]	2	1	0
Retroviridae Infections Virus diseases caused by the RETROVIRIDAE.	2	1	0
Cytomegalovirus A genus of the family HERPESVIRIDAE, subfamily BETAHERPESVIRINAE, infecting the salivary glands, liver, spleen, lungs, eyes, and other organs, in which they produce characteristically enlarged cells with intranuclear inclusions. Infection with Cytomegalovirus is also seen as an opportunistic infection in AIDS.	2	1	0
HIV Human immunodeficiency virus. A non-taxonomic and historical term referring to any of two species, specifically HIV-1 and/or HIV-2. Prior to 1986, this was called human T-lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV). From 1986-1990, it was an official species called HIV. Since 1991, HIV was no longer considered an official species name; the two species were designated HIV-1 and HIV-2.	2	1	0
Affective Disorders [description not available]	2	1	0
Acute Brain Injuries [description not available]	2	1	0
Cognition Disorders Disorders characterized by disturbances in mental processes related to learning, thinking, reasoning, and judgment.	2.9	4	0
As If Personality [description not available]	2	1	0
Anxiety Feelings or emotions of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS.	2	1	0
Brain Injuries Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits.	2	1	0
Mood Disorders Those disorders that have a disturbance in mood as their predominant feature.	2	1	0
Hepatocellular Carcinoma [description not available]	2.39	2	0
Carcinoma, Hepatocellular A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested.	2.39	2	0
Recrudescence [description not available]	2.01	1	0
Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)	2.01	1	0
Cholera Infantum [description not available]	1.95	1	0
Granulocytic Leukemia [description not available]	3.28	2	0
Familial Waldenstrom's Macroglobulinaemia [description not available]	1.95	1	0
Acute Myelogenous Leukemia [description not available]	1.95	1	0
Leukemia, Myeloid Form of leukemia characterized by an uncontrolled proliferation of the myeloid lineage and their precursors (MYELOID PROGENITOR CELLS) in the bone marrow and other sites.	3.28	2	0
Waldenstrom Macroglobulinemia A lymphoproliferative disorder characterized by pleomorphic B-LYMPHOCYTES including PLASMA CELLS, with increased levels of monoclonal serum IMMUNOGLOBULIN M. There is lymphoplasmacytic cells infiltration into bone marrow and often other tissues, also known as lymphoplasmacytic lymphoma. Clinical features include ANEMIA; HEMORRHAGES; and hyperviscosity.	1.95	1	0
Leukemia, Myeloid, Acute Clonal expansion of myeloid blasts in bone marrow, blood, and other tissue. Myeloid leukemias develop from changes in cells that normally produce NEUTROPHILS; BASOPHILS; EOSINOPHILS; and MONOCYTES.	1.95	1	0
Acne [description not available]	3.34	1	1
Acne Vulgaris A chronic disorder of the pilosebaceous apparatus associated with an increase in sebum secretion. It is characterized by open comedones (blackheads), closed comedones (whiteheads), and pustular nodules. The cause is unknown, but heredity and age are predisposing factors.	3.34	1	1
Dentin Hypersensitivity [description not available]	3.34	1	1
Cardiovascular Stroke [description not available]	1.95	1	0
Myocardial Infarction NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).	1.95	1	0
EHS Tumor [description not available]	1.95	1	0
Circulatory Collapse [description not available]	7.35	2	0
Shock A pathological condition manifested by failure to perfuse or oxygenate vital organs.	2.35	2	0
Agranulocytosis A decrease in the number of GRANULOCYTES; (BASOPHILS; EOSINOPHILS; and NEUTROPHILS).	1.95	1	0
Endotoxin Shock [description not available]	2.35	2	0
Neutropenia A decrease in the number of NEUTROPHILS found in the blood.	1.95	1	0
Shock, Septic Sepsis associated with HYPOTENSION or hypoperfusion despite adequate fluid resuscitation. Perfusion abnormalities may include but are not limited to LACTIC ACIDOSIS; OLIGURIA; or acute alteration in mental status.	2.35	2	0
Food Poisoning, Salmonella [description not available]	1.95	1	0
Salmonella Food Poisoning Poisoning caused by ingestion of food harboring species of SALMONELLA. Conditions of raising, shipping, slaughtering, and marketing of domestic animals contribute to the spread of this bacterium in the food supply.	1.95	1	0
Injuries, Mandibular [description not available]	1.95	1	0
Wounds, Gunshot Disruption of structural continuity of the body as a result of the discharge of firearms.	1.95	1	0
Urinary Tract Diseases [description not available]	1.95	1	0
Eczema, Atopic [description not available]	1.95	1	0
Dermatitis, Atopic A chronic inflammatory genetically determined disease of the skin marked by increased ability to form reagin (IgE), with increased susceptibility to allergic rhinitis and asthma, and hereditary disposition to a lowered threshold for pruritus. It is manifested by lichenification, excoriation, and crusting, mainly on the flexural surfaces of the elbow and knee. In infants it is known as infantile eczema.	1.95	1	0
Fusiform Aneurysm Elongated, spindle-shaped dilation in the wall of blood vessels, usually large ARTERIES with ATHEROSCLEROSIS.	1.95	1	0
Heart Valve Diseases Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).	3.05	5	0
Rupture, Spontaneous Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.	2.86	4	0
Cardiac Septal Defect [description not available]	2.35	2	0
Aneurysm Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.	6.95	1	0
Atherosclerotic Parkinsonism [description not available]	1.98	1	0
Parkinson Disease, Secondary Conditions which feature clinical manifestations resembling primary Parkinson disease that are caused by a known or suspected condition. Examples include parkinsonism caused by vascular injury, drugs, trauma, toxin exposure, neoplasms, infections and degenerative or hereditary conditions. Clinical features may include bradykinesia, rigidity, parkinsonian gait, and masked facies. In general, tremor is less prominent in secondary parkinsonism than in the primary form. (From Joynt, Clinical Neurology, 1998, Ch38, pp39-42)	1.98	1	0
Testicular Diseases Pathological processes of the TESTIS.	1.98	1	0
Chronic Illness [description not available]	3.98	5	0
Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2).	3.98	5	0
Anemia, Macrocytic Anemia characterized by larger than normal erythrocytes, increased mean corpuscular volume (MCV) and increased mean corpuscular hemoglobin (MCH).	2.89	4	0
Disease, Pulmonary [description not available]	2.36	2	0
Lung Diseases Pathological processes involving any part of the LUNG.	2.36	2	0
Leukemia L 1210 [description not available]	1.97	1	0
Dermal Sinus [description not available]	2.38	2	0
Mouth Diseases Diseases involving the MOUTH.	1.97	1	0
Acquired Immune Deficiency Syndrome [description not available]	2.37	2	0
Cytomegalic Inclusion Disease [description not available]	1.97	1	0
Acquired Immunodeficiency Syndrome An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (HIV), a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for AIDS as defined by the CDC in 1993.	2.37	2	0
Cytomegalovirus Infections Infection with CYTOMEGALOVIRUS, characterized by enlarged cells bearing intranuclear inclusions. Infection may be in almost any organ, but the salivary glands are the most common site in children, as are the lungs in adults.	1.97	1	0
Complications, Pregnancy [description not available]	3.29	2	0
Adipocere [description not available]	1.97	1	0
Anemia A reduction in the number of circulating ERYTHROCYTES or in the quantity of HEMOGLOBIN.	7.38	2	0
Experimental Hepatoma [description not available]	2.38	2	0
Chromosome Deletion Actual loss of portion of a chromosome.	1.97	1	0
Developmental Psychomotor Disorders [description not available]	2.38	2	0
Coronary Heart Disease [description not available]	1.97	1	0
Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.	1.97	1	0
Hypergammaglobulinemia An excess of GAMMA-GLOBULINS in the serum due to chronic infections or PARAPROTEINEMIAS.	1.97	1	0
Spinal Diseases Diseases involving the SPINE.	1.97	1	0
Cancer of Gastrointestinal Tract [description not available]	2.89	1	0
Porphyria [description not available]	1.97	1	0
Porphyrias A diverse group of metabolic diseases characterized by errors in the biosynthetic pathway of HEME in the LIVER, the BONE MARROW, or both. They are classified by the deficiency of specific enzymes, the tissue site of enzyme defect, or the clinical features that include neurological (acute) or cutaneous (skin lesions). Porphyrias can be hereditary or acquired as a result of toxicity to the hepatic or erythropoietic marrow tissues.	1.97	1	0
Atrophy Decrease in the size of a cell, tissue, organ, or multiple organs, associated with a variety of pathological conditions such as abnormal cellular changes, ischemia, malnutrition, or hormonal changes.	2.65	3	0
Palsy [description not available]	1.97	1	0
Paralysis A general term most often used to describe severe or complete loss of muscle strength due to motor system disease from the level of the cerebral cortex to the muscle fiber. This term may also occasionally refer to a loss of sensory function. (From Adams et al., Principles of Neurology, 6th ed, p45)	1.97	1	0
Leukocytopenia [description not available]	1.96	1	0
Leukopenia A decrease in the number of LEUKOCYTES in a blood sample below the normal range (LEUKOCYTE COUNT less than 4000).	1.96	1	0
Angioneurotic Edema [description not available]	2.37	2	0
Angioedema Swelling involving the deep DERMIS, subcutaneous, or submucosal tissues, representing localized EDEMA. Angioedema often occurs in the face, lips, tongue, and larynx.	2.37	2	0
Osteomyelitis INFLAMMATION of the bone as a result of infection. It may be caused by a variety of infectious agents, especially pyogenic (PUS - producing) BACTERIA.	1.97	1	0
Autosomal Hemophilia A [description not available]	1.97	1	0
Acute Hemolytic Transfusion Reaction [description not available]	1.97	1	0
Hemophilia A The classic hemophilia resulting from a deficiency of factor VIII. It is an inherited disorder of blood coagulation characterized by a permanent tendency to hemorrhage.	1.97	1	0
Transfusion Reaction Complications of BLOOD TRANSFUSION. Included adverse reactions are common allergic and febrile reactions; hemolytic (delayed and acute) reactions; and other non-hemolytic adverse reactions such as infections and adverse immune reactions related to immunocompatibility.	6.97	1	0
Measles, German [description not available]	1.97	1	0
Condition, Preneoplastic [description not available]	1.97	1	0
Precancerous Conditions Pathological conditions that tend eventually to become malignant.	1.97	1	0
Back Ache [description not available]	2.88	1	0
Precordial Catch [description not available]	2.88	1	0
Back Pain Acute or chronic pain located in the posterior regions of the THORAX; LUMBOSACRAL REGION; or the adjacent regions.	2.88	1	0
Chest Pain Pressure, burning, or numbness in the chest.	2.88	1	0
Hand Injuries General or unspecified injuries to the hand.	1.97	1	0
Hydramnios [description not available]	1.97	1	0
Cardiovascular Pregnancy Complications [description not available]	1.97	1	0
Humeral Fractures Fractures of the HUMERUS.	6.97	1	0
Alveolitis, Fibrosing [description not available]	1.97	1	0
Pulmonary Fibrosis A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death.	6.97	1	0
Bone Loss, Osteoclastic [description not available]	3.28	2	0
Electric Injuries Injuries caused by electric currents. The concept excludes electric burns (BURNS, ELECTRIC), but includes accidental electrocution and electric shock.	2.88	1	0
Experimental Leukemia [description not available]	1.97	1	0
Brown Lung [description not available]	1.97	1	0
Embryopathies [description not available]	1.97	1	0
Complications, Infectious Pregnancy [description not available]	1.97	1	0
Diseases of Nasopharynx [description not available]	1.96	1	0
Inferior Dislocation [description not available]	1.96	1	0
Incontinentia Pigmenti Achromians [description not available]	1.96	1	0
Poisoning, Mercury [description not available]	2.88	1	0
Parasite Infections [description not available]	2.88	1	0
Mercury Poisoning Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of MERCURY or MERCURY COMPOUNDS.	2.88	1	0
Diffuse Large B-Cell Lymphoma [description not available]	1.96	1	0
Lymphoma, Large B-Cell, Diffuse Malignant lymphoma composed of large B lymphoid cells whose nuclear size can exceed normal macrophage nuclei, or more than twice the size of a normal lymphocyte. The pattern is predominantly diffuse. Most of these lymphomas represent the malignant counterpart of B-lymphocytes at midstage in the process of differentiation.	1.96	1	0
Femoral Fractures Fractures of the femur.	1.96	1	0
Amyloidosis A group of sporadic, familial and/or inherited, degenerative, and infectious disease processes, linked by the common theme of abnormal protein folding and deposition of AMYLOID. As the amyloid deposits enlarge they displace normal tissue structures, causing disruption of function. Various signs and symptoms depend on the location and size of the deposits.	2.88	1	0
Cell Transformation, Viral An inheritable change in cells manifested by changes in cell division and growth and alterations in cell surface properties. It is induced by infection with a transforming virus.	1.96	1	0
Laryngitis Inflammation of the LARYNGEAL MUCOSA, including the VOCAL CORDS. Laryngitis is characterized by irritation, edema, and reduced pliability of the mucosa leading to VOICE DISORDERS such as APHONIA and HOARSENESS.	1.96	1	0
Tracheitis INFLAMMATION of the TRACHEA that is usually associated with RESPIRATORY TRACT INFECTIONS.	1.96	1	0
Calcification, Pathologic [description not available]	2.64	3	0
Calcinosis Pathologic deposition of calcium salts in tissues.	2.64	3	0
Hyperventilation A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.	1.95	1	0
Apnea A transient absence of spontaneous respiration.	1.95	1	0
Hepatitis, Infectious [description not available]	2.86	1	0
Hepatitis A INFLAMMATION of the LIVER in humans caused by a member of the HEPATOVIRUS genus, HUMAN HEPATITIS A VIRUS. It can be transmitted through fecal contamination of food or water.	2.86	1	0
Infections, Pseudomonas [description not available]	2.34	2	0
Pseudomonas Infections Infections with bacteria of the genus PSEUDOMONAS.	2.34	2	0
Anemia, Hypoplastic [description not available]	1.95	1	0
Ataxia Telangiectasia Syndrome [description not available]	1.95	1	0
47,XX,+21 [description not available]	1.95	1	0
Anemia, Aplastic A form of anemia in which the bone marrow fails to produce adequate numbers of peripheral blood elements.	1.95	1	0
Ataxia Telangiectasia An autosomal recessive inherited disorder characterized by choreoathetosis beginning in childhood, progressive CEREBELLAR ATAXIA; TELANGIECTASIS of CONJUNCTIVA and SKIN; DYSARTHRIA; B- and T-cell immunodeficiency, and RADIOSENSITIVITY to IONIZING RADIATION. Affected individuals are prone to recurrent sinobronchopulmonary infections, lymphoreticular neoplasms, and other malignancies. Serum ALPHA-FETOPROTEINS are usually elevated. (Menkes, Textbook of Child Neurology, 5th ed, p688) The gene for this disorder (ATM) encodes a cell cycle checkpoint protein kinase and has been mapped to chromosome 11 (11q22-q23).	1.95	1	0
Down Syndrome A chromosome disorder associated either with an extra chromosome 21 or an effective trisomy for chromosome 21. Clinical manifestations include hypotonia, short stature, brachycephaly, upslanting palpebral fissures, epicanthus, Brushfield spots on the iris, protruding tongue, small ears, short, broad hands, fifth finger clinodactyly, Simian crease, and moderate to severe INTELLECTUAL DISABILITY. Cardiac and gastrointestinal malformations, a marked increase in the incidence of LEUKEMIA, and the early onset of ALZHEIMER DISEASE are also associated with this condition. Pathologic features include the development of NEUROFIBRILLARY TANGLES in neurons and the deposition of AMYLOID BETA-PROTEIN, similar to the pathology of ALZHEIMER DISEASE. (Menkes, Textbook of Child Neurology, 5th ed, p213)	1.95	1	0
Metastase [description not available]	1.94	1	0
Cancer of Spleen [description not available]	1.94	1	0
Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site.	1.94	1	0
Clostridium tetani Infection [description not available]	2.35	2	0
Tetanus A disease caused by tetanospasmin, a powerful protein toxin produced by CLOSTRIDIUM TETANI. Tetanus usually occurs after an acute injury, such as a puncture wound or laceration. Generalized tetanus, the most common form, is characterized by tetanic muscular contractions and hyperreflexia. Localized tetanus presents itself as a mild condition with manifestations restricted to muscles near the wound. It may progress to the generalized form.	2.35	2	0
Tracheal Diseases Diseases involving the TRACHEA.	1.95	1	0
Ulcer A lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue.	1.95	1	0
Gas Gangrene A severe condition resulting from bacteria invading healthy muscle from adjacent traumatized muscle or soft tissue. The infection originates in a wound contaminated with bacteria of the genus CLOSTRIDIUM. C. perfringens accounts for the majority of cases (over eighty percent), while C. noyvi, C. septicum, and C. histolyticum cause most of the other cases.	2.35	2	0
Infection, Wound [description not available]	1.94	1	0
Air Embolism [description not available]	2.86	1	0
Asystole [description not available]	2.86	1	0
Hypothermia, Accidental [description not available]	2.86	1	0
Heart Arrest Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.	2.86	1	0
Hypothermia Lower than normal body temperature, especially in warm-blooded animals.	2.86	1	0
Bagassosis A diffuse parenchymal lung disease caused by inhaled dust from processing SUGARCANE (bagasse), usually in the manufacturing of wallboard.	2.86	1	0
Pneumoconiosis A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.	2.86	1	0
Arrhythmia [description not available]	1.94	1	0
Arrhythmias, Cardiac Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.	1.94	1	0
Foot Dermatoses Skin diseases of the foot, general or unspecified.	1.94	1	0
Athlete's Foot [description not available]	1.94	1	0
Tinea Pedis Dermatological pruritic lesion in the feet, caused by Trichophyton rubrum, T. mentagrophytes, or Epidermophyton floccosum.	1.94	1	0
Mitral Incompetence [description not available]	1.95	1	0
Bacterial Endocarditides [description not available]	1.95	1	0
Endocarditis, Bacterial Inflammation of the ENDOCARDIUM caused by BACTERIA that entered the bloodstream. The strains of bacteria vary with predisposing factors, such as CONGENITAL HEART DEFECTS; HEART VALVE DISEASES; HEART VALVE PROSTHESIS IMPLANTATION; or intravenous drug use.	1.95	1	0
Mitral Valve Insufficiency Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.	1.95	1	0
Thromboembolism Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.	1.95	1	0
Injuries Used with anatomic headings, animals, and sports for wounds and injuries. Excludes cell damage, for which pathology is used.	1.95	1	0
Wounds and Injuries Damage inflicted on the body as the direct or indirect result of an external force, with or without disruption of structural continuity.	1.95	1	0
Blood Pressure, Low [description not available]	2.64	3	0
Hypotension Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.	2.64	3	0
Aortic Aneurysm, Ruptured [description not available]	1.95	1	0
Mushroom Poisoning Poisoning from ingestion of mushrooms, primarily from, but not restricted to, toxic varieties.	2.85	1	0
Bacillus anthracis Infection [description not available]	1.94	1	0
Anthrax An acute infection caused by the spore-forming bacteria BACILLUS ANTHRACIS. It commonly affects hoofed animals such as sheep and goats. Infection in humans often involves the skin (cutaneous anthrax), the lungs (inhalation anthrax), or the gastrointestinal tract. Anthrax is not contagious and can be treated with antibiotics.	1.94	1	0
Acute Kidney Failure [description not available]	1.94	1	0
Urinary Tract Infections Inflammatory responses of the epithelium of the URINARY TRACT to microbial invasions. They are often bacterial infections with associated BACTERIURIA and PYURIA.	2.34	2	0
Acute Kidney Injury Abrupt reduction in kidney function. Acute kidney injury encompasses the entire spectrum of the syndrome including acute kidney failure; ACUTE KIDNEY TUBULAR NECROSIS; and other less severe conditions.	1.94	1	0
Aneurysm, Aortic [description not available]	1.94	1	0
Aortic Aneurysm An abnormal balloon- or sac-like dilatation in the wall of AORTA.	1.94	1	0
Fever of Unknown Origin Fever in which the etiology cannot be ascertained.	1.94	1	0
Facial Injuries General or unspecified injuries to the soft tissue or bony portions of the face.	2.35	2	0
Erythema Redness of the skin produced by congestion of the capillaries. This condition may result from a variety of disease processes.	1.94	1	0
Ptosis, Eyelid [description not available]	1.94	1	0
Blepharoptosis Drooping of the upper lid due to deficient development or paralysis of the levator palpebrae muscle.	1.94	1	0
Pink Eye [description not available]	1.94	1	0
Conjunctivitis INFLAMMATION of the CONJUNCTIVA.	1.94	1	0
Afibrinogenemia, Congenital [description not available]	1.94	1	0
Coagulation Disorders, Blood [description not available]	1.94	1	0
Embolus [description not available]	1.94	1	0
Thrombopenia [description not available]	1.94	1	0
Afibrinogenemia A deficiency or absence of FIBRINOGEN in the blood.	1.94	1	0
Blood Coagulation Disorders Hemorrhagic and thrombotic disorders that occur as a consequence of abnormalities in blood coagulation due to a variety of factors such as COAGULATION PROTEIN DISORDERS; BLOOD PLATELET DISORDERS; BLOOD PROTEIN DISORDERS or nutritional conditions.	1.94	1	0
Embolism Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.	1.94	1	0
Thrombocytopenia A subnormal level of BLOOD PLATELETS.	1.94	1	0
Bronchial Diseases Diseases involving the BRONCHI.	1.94	1	0
Skin Ulcer An ULCER of the skin and underlying tissues.	1.94	1	0
Classical Swine Fever An acute, highly contagious disease affecting swine of all ages and caused by the CLASSICAL SWINE FEVER VIRUS. It has a sudden onset with high morbidity and mortality.	1.94	1	0
Edema, Laryngeal [description not available]	1.94	1	0
Laryngeal Edema Abnormal accumulation of fluid in tissues of any part of the LARYNX, commonly associated with laryngeal injuries and allergic reactions.	1.94	1	0
Plasma Cell Tumor [description not available]	1.94	1	0
Plasmacytoma Any discrete, presumably solitary, mass of neoplastic PLASMA CELLS either in BONE MARROW or various extramedullary sites.	1.94	1	0
Shock, Traumatic Shock produced as a result of trauma.	1.94	1	0
Pyoderma Any purulent skin disease (Dorland, 27th ed).	6.94	1	0
Anaplastic Ependymoma [description not available]	1.94	1	0
Ependymoma Glioma derived from EPENDYMOGLIAL CELLS that tend to present as malignant intracranial tumors in children and as benign intraspinal neoplasms in adults. It may arise from any level of the ventricular system or central canal of the spinal cord. Intracranial ependymomas most frequently originate in the FOURTH VENTRICLE and histologically are densely cellular tumors which may contain ependymal tubules and perivascular pseudorosettes. Spinal ependymomas are usually benign papillary or myxopapillary tumors. (From DeVita et al., Principles and Practice of Oncology, 5th ed, p2018; Escourolle et al., Manual of Basic Neuropathology, 2nd ed, pp28-9)	1.94	1	0
Muscle Contraction A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.	1.94	1	0

ethylene oxide

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