Compounds > ytterbium
Page last updated: 2024-12-06

ytterbium

Description

Ytterbium is a rare earth element with a silvery-white metallic appearance. It is not found free in nature, but is present in various minerals like gadolinite and euxenite. Ytterbium is produced by separating it from other rare earth elements through a complex process involving ion exchange and solvent extraction. It exhibits a wide range of applications, including:

* **Laser technology:** Ytterbium-doped fibers are used in high-power lasers for industrial applications, such as cutting, welding, and marking materials.
* **Optical communication:** Ytterbium-doped fibers are also used in fiber optic amplifiers for boosting optical signals in telecommunication networks.
* **Medical imaging:** Ytterbium isotopes are employed in magnetic resonance imaging (MRI) as contrast agents to enhance image quality.
* **Metallurgy:** Ytterbium alloys find uses in various fields, such as aerospace and nuclear technology.

Ytterbium is studied extensively for its potential in diverse fields due to its unique properties, such as:

* **High melting point:** Ytterbium has a relatively high melting point, making it suitable for high-temperature applications.
* **Optical properties:** Ytterbium exhibits specific optical properties that make it valuable for lasers and fiber optics.
* **Magnetic properties:** Ytterbium exhibits magnetic properties that are being explored for applications in magnetic materials and devices.

The ongoing research on ytterbium aims to further explore its potential in areas like renewable energy, quantum computing, and advanced materials. '

Ytterbium: An element of the rare earth family of metals. It has the atomic symbol Yb, atomic number 70, and atomic weight 173. Ytterbium has been used in lasers and as a portable x-ray source. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID23992
CHEBI ID33381
MeSH IDM0023108

Synonyms (74)

Synonym
YB ,
70yb
yterbio
CHEBI:33381 ,
7440-64-4
ytterbium
ytterbium, chunks, 99.9% trace metals basis
einecs 231-173-2
yb2 ,
ytterbium (ii) ion
unii-mnq4o4wsi1
mnq4o4wsi1 ,
ytterbium, elemental
ytterbium [mi]
ytterbium [who-dd]
ytterbium [vandf]
NAWDYIZEMPQZHO-UHFFFAOYSA-N
DTXSID4046993 ,
AKOS024257647
ytterbium foil, 0.3mm (0.01in) thick
ytterbium foil, 0.64mm (0.025in) thick
ytterbium foil, 0.1mm (0.004in) thick
ytterbium ingot
ytterbium foil, 1.0mm (0.04in) thick
ytterbium powder, -200 mesh
ytterbium powder
mfcd00011286
ytterbium foil, 3n
ytterbium ingot, 3n
ytterbium chips, 3n
ytterbium, foil, thickness 0.80 mm, size 30 x 30 mm, purity 99%
ytterbium, rod, 100mm, diameter 6.35mm, cast, 99%
ytterbium, foil, 24x24mm, thickness 0.80mm, as rolled, 99%
ytterbium, lump, 100g, max. size 25mm, 99.9%
ytterbium, wire reel, 300mm, diameter 1.0mm, square section, 99.9%
ytterbium, wire reel, 50mm, diameter 1.0mm, square section, 99.9%
ytterbium, foil, thickness 0.80 mm, size 60 x 60 mm, purity 99%
ytterbium, wire reel, 100mm, diameter 1.0mm, square section, 99.9%
ytterbium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%
ytterbium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
ytterbium, rod, 100mm, diameter 10.0mm, cast, 99%
ytterbium, powder, max. particle size 500 micron, weight 10 g, purity 99.9%
ytterbium, wire, 1.0 mm diameter, length 50 mm, purity 99.9%
ytterbium, rod, 50mm, diameter 10.0mm, cast, 99%
ytterbium, foil, 50x50mm, thickness 0.125mm, as rolled, 99%
ytterbium, rod, 50mm, diameter 2.0mm, cast, 99%
ytterbium, foil, 25x25mm, thickness 0.25mm, as rolled, 99%
ytterbium, lump, 50g, max. size 25mm, 99.9%
ytterbium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%
ytterbium, lump, 25g, max. size 25mm, 99.9%
ytterbium, wire reel, 200mm, diameter 1.0mm, square section, 99.9%
ytterbium, rod, 50mm, diameter 6.35mm, cast, 99%
ytterbium, foil, 50x50mm, thickness 0.25mm, as rolled, 99%
ytterbium, powder, 500 max. part. size (micron), weight 20 g, purity 99.9%
ytterbium, wire, 1.0 mm diameter, length 100 mm, purity 99.9%
ytterbium, foil, 25x25mm, thickness 0.125mm, as rolled, 99%
ytterbium, foil, 49x49mm, thickness 0.80mm, as rolled, 99%
ytterbium(2+)
Q27115621
ytterbium sputtering target, 76.2mm dia x 3.18mm thick
ytterbium sputtering target, 76.2mm dia x 1.59mm thick
ytterbium sputtering target, 50.8mm dia x 1.59mm thick
ytterbium nanofoil
AMY22275
ultra thin ytterbium nanofoil
barium sulfide (bas) sputtering targets
ytterbium pieces, sublimed, 99.9% (reo)
ytterbium standard: yb @ 1000 microg/ml in 5% hno3
ytterbium standard: yb @ 10000 microg/ml in 5% hno3
ytterbium chunks
SY077197
ytterbium metallicum
dtxcid2026993
ytterbium - yb @ 1000 microg/ml in 5% hno3

Research Excerpts

Overview

Ytterbium-169 (169Yb) is a promising new intermediate low-energy isotope for interstitial implantation. It has a half life of 32 days and an average photon energy of 93 KeV.

ExcerptReferenceRelevance
"Ytterbium oxide proved to be a properly radiopacifying agent for calcium silicate-based cement since it did not affected the physicochemical and biological properties besides preserving the bioactive potential of this material."( Ytterbium Oxide as Radiopacifier of Calcium Silicate-Based Cements. Physicochemical and Biological Properties.
Bonetti-Filho, I; Bosso-Martelo, R; Costa, BC; Guerreiro-Tanomaru, JM; Rodrigues, EM; Tanomaru-Filho, M, )		2.3
"Ytterbium-169 (169Yb) is a promising new intermediate low-energy isotope for interstitial implantation. "( A secondary air kerma strength standard for Yb-169 interstitial brachytherapy sources.
Das, RK; Meigooni, AS; Mishra, V; Perera, H; Williamson, JF, 1995)		1.73
"Ytterbium-169 (169Yb) is a promising new isotope for brachytherapy with a half life of 32 days and an average photon energy of 93 KeV. "( Dosimetric characteristics, air-kerma strength calibration and verification of Monte Carlo simulation for a new Ytterbium-169 brachytherapy source.
Li, Z; Meigooni, AS; Mishra, V; Perera, H; Williamson, JF, 1994)		1.94
"Ytterbium169 is a radiolanthanide with a period of 32 days."( [Value of isotope study with ytterbium-169 citrate in the diagnosis of pulmonary opacities of cancerous nature].
Chatal, JF; Corroller, J; Guihard, R; Moigneteau, C; Peltier, P, 1978)		1.27

Effects

ExcerptReferenceRelevance
"Ytterbium-169 has been developed as a possible replacement for Iridium-192 and Iodine-125. "( Microdosimetric single event spectra of Ytterbium-169 compared with commonly used brachytherapy sources and teletherapy beams.
Gillin, MT; Wilson, JF; Zellmer, DL, 1992)		1.99

Toxicity

ExcerptReferenceRelevance
" In order to evaluate possible toxic effects of scandium, chromium, lanthanum, samarium, europium, dysprosium, terbium, thulium, and ytterbium oxides, and barium sulfate upon growth, general development, reproduction, and lactation, mice were fed different levels of these compounds for three generations."( Studies of nutritional safety of some heavy metals in mice.
Gray, DH; Hutcheson, DP; Luckey, TD; Venugopal, B, 1975)		0.46
" The inhibition was dependent on the actual amount of toxic Yb uptake by the cucumber plants."( Comparative toxicity of nanoparticulate/bulk Yb₂O₃ and YbCl₃ to cucumber (Cucumis sativus).
Chai, Z; Ding, Y; Guo, Z; He, X; Ma, Y; Tai, R; Zhang, P; Zhang, Z; Zhao, Y, 2012)		0.38

Pharmacokinetics

ExcerptReferenceRelevance
" Pharmacokinetic studies demonstrated that concentrations of 90Y-labeled B72."( Phase I study of 90Y-labeled B72.3 intraperitoneal administration in patients with ovarian cancer: effect of dose and EDTA coadministration on pharmacokinetics and toxicity.
Cheung, L; Gano, J; Kavanagh, JJ; Kudelka, AP; Murray, JL; Rosenblum, MG; Verschraegen, CF, 1999)		0.3

Bioavailability

ExcerptReferenceRelevance
"33 mg per meal); on day 2, identical meals (taken with a calcium supplement to reduce iron bioavailability) were given with equivalent amounts of 58Fe-labeled iron and ytterbium; on day 3, a well-absorbed reference dose of 54Fe (3 mg) was given with 1 mg Dy."( Rare earth elements as nonabsorbable fecal markers in studies of iron absorption.
Crews, HM; Eagles, J; Fairweather-Tait, SJ; Minihane, AM; Owen, L, 1997)		0.49
"0-tesla MR system in accordance with the safety limits of the specific absorption rate (SAR)."( Ytterbium-based PARACEST agent: feasibility of CEST imaging on a clinical MR scanner.
Burdinski, D; Hatakenaka, M; Honda, H; Kato, N; Keupp, J; Nakayama, T; Nishie, A; Takayama, Y; Yoshise, S; Yoshiura, T, 2012)		1.82

Dosage Studied

Ytterbium chloride (Yb) is an indicator of fecal output. We dosed 13 mature beef cows with Yb and chromic oxide (Cr2O3) daily. Rate of passage from the rumen was estimated. Four crossbred heifers were dosed with cobalt ethylenediaminetetraacetic acid.

ExcerptRelevanceReference
"Rate of passage from the rumen was estimated from samples from the rumen, duodenum, ileum, and rectum after four crossbred heifers were dosed with cobalt ethylenediaminetetraacetic acid and ytterbium-labeled alfalfa or corn grain as digesta markers."( Effects of sampling site on passage rate estimates in heifers fed alfalfa hay or a high concentrate diet.
Goetsch, AL; Owens, FN, 1985)		0.46
" Five-hr marker excretions as a percent of that originally dosed were similar (P greater than ."( Comparison of ferric oxide and ytterbium chloride as digesta markers in broiler chicks.
Sarani, S; Smith, MO; Teeter, TG, 1985)		0.56
"To assess the potential of ytterbium chloride (Yb) as an indicator of fecal output, we dosed 13 mature beef cows with Yb and chromic oxide (Cr2O3) either once (0800) or twice (0800 and 1600 hr) daily."( Comparison of ytterbium chloride and chromium sesquioxide as fecal indicators.
Prigge, EC; Reid, RL; Varga, GA; Vicini, JL, 1981)		0.92
"79% of Cr dosed intraruminally was secreted or excreted in milk and urine in the 48-h period following marker administration."( Short communication: Comparison of 3 solid digesta passage markers in dairy cows.
Hristov, AN; Lee, C, 2014)		0.4
" In addition to high-contrast imaging and consequently high sensitivity detection of bladder cancer cells, highly selective optoporation-assisted chemotherapy was accomplished using a dosage of chemotherapy agent significantly lower than any previous reports, within a clinically relevant incubation time window."( Multifunctional nanoclusters of NaYF
Cho, SK; Flaig, TW; Mao, C; Park, W; Su, LJ; Wolenski, CD, 2019)		0.51
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Occurs in Manufacturing (1 Product(s))

Product Categories

Product CategoryProducts
Vitamins & Supplements1

Products

ProductBrandCategoryCompounds Matched from IngredientsDate Retrieved
Heaven Sent Wellgenix Balanced Essentials + Plus Liquid Vitamins Berry -- 32 fl ozHeaven SentVitamins & Supplementscitric acid, Antimony, Arginine, Vitamin C, Aspartic Acid, Kelp, Barium, Beryllium, Biotin, Bismuth, Boron, Bromide, Omega 3, Cerium, Cesium, Chromium, citric acid, Cobalt, Cystine, Vitamin E, fructose, Dysprosium, Erbium, Europium, Fluoride, Folate, Gadolinium, Gallium, Vitamin E, Glycine, Gold, Hafnium, Histidine, Holmium, Inositol, Iodine, Iodine, Isoleucine, Lanthanum, Leucine, Calcium Carbonate, Lithium, Lutetium, Lysine, Manganese, Methionine, Molybdenum, Neodymium, Niacin, Nickel, Niobium, Pantothenic Acid, Phenylalanine, Phosphorus, Praseodymium, Proline, Vitamin B6, Vitamin A, Rhenium, Riboflavin, Rubidium, Samarium, Scandium, Selenium, Serine, Silicon, Silver, Strontium, Tantalum, Tellurium, Terbium, Thallium, Thiamin, Thorium, Threonine, Thulium, Tin, Titanium, Tryptophan, Tungsten, Tyrosine, Valine, Vanadium, Vitamin B12, Vitamin B6, Vitamin K, Ytterbium, Yttrium, Zirconium2024-11-29 10:47:42

Drug Classes (2)

ClassDescription
lanthanoid atom
f-block element atom
[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]

Research

Studies (1,340)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990302 (22.54)18.7374
1990's72 (5.37)18.2507
2000's300 (22.39)29.6817
2010's581 (43.36)24.3611
2020's85 (6.34)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 84.40

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be very strong demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index84.40 (24.57)
Research Supply Index7.24 (2.92)
Research Growth Index4.95 (4.65)
Search Engine Demand Index151.58 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (84.40)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials11 (0.79%)5.53%
Reviews18 (1.30%)6.00%
Case Studies14 (1.01%)4.05%
Observational1 (0.07%)0.25%
Other1,341 (96.82%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]
SubstanceRelationship StrengthStudiesTrialsClassesRoles
acetamide
acetimidic acid : A carboximidic acid that is acetic acid in which the carbonyl oxygen is replaced by an imino group.		7.0410acetamides;
carboximidic acid;
monocarboxylic acid amide;
N-acylammonia
adipic acid
adipic acid : An alpha,omega-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane.		2.0510alpha,omega-dicarboxylic acid;
dicarboxylic fatty acid		food acidity regulator;
human xenobiotic metabolite
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2.		2.9340azane;
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
benzaldehyde
[no description available]		2.4320benzaldehydesEC 3.1.1.3 (triacylglycerol lipase) inhibitor;
EC 3.5.5.1 (nitrilase) inhibitor;
flavouring agent;
fragrance;
odorant receptor agonist;
plant metabolite
benzene
[no description available]		2.0410aromatic annulene;
benzenes;
volatile organic compound		carcinogenic agent;
environmental contaminant;
non-polar 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)		2.110halide anion;
monoatomic bromine
butyric acid
Butyric Acid: A four carbon acid, CH3CH2CH2COOH, with an unpleasant odor that occurs in butter and animal fat as the glycerol ester.. butyrate : A short-chain fatty acid anion that is the conjugate base of butyric acid, obtained by deprotonation of the carboxy group.. butyric acid : A straight-chain saturated fatty acid that is butane in which one of the terminal methyl groups has been oxidised to a carboxy group.		3.5611fatty acid 4:0;
straight-chain saturated fatty acid		human urinary metabolite;
Mycoplasma genitalium metabolite
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.		2.3110carbon 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
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).		2.9440alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound		bacterial metabolite;
fossil fuel;
greenhouse gas
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.		3.2560tricarboxylic acidantimicrobial agent;
chelator;
food acidity regulator;
fundamental metabolite
chlorine
chloride : A halide anion formed when chlorine picks up an electron to form an an anion.		6.33212halide 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.		1.9710chlorine molecular entity;
gas molecular entity;
hydrogen halide;
mononuclear parent hydride		mouse metabolite
coumarin
2H-chromen-2-one: coumarin derivative		2.0310coumarinsfluorescent 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).		2.4620monohydroxybenzoic acidalgal metabolite;
antifungal agent;
antiinfective agent;
EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor;
keratolytic drug;
plant hormone;
plant metabolite
gallic acid
gallate : A trihydroxybenzoate that is the conjugate base of gallic acid.		2.0410trihydroxybenzoic acidantineoplastic agent;
antioxidant;
apoptosis inducer;
astringent;
cyclooxygenase 2 inhibitor;
EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
geroprotector;
human xenobiotic metabolite;
plant metabolite
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.		2.1110gas molecular entity;
hydracid;
mononuclear parent hydride;
sulfur hydride		Escherichia coli metabolite;
genotoxin;
metabolite;
signalling molecule;
toxin;
vasodilator agent
4-aminoimidazole
4-aminoimidazole: structure in first source. 4-aminoimidazole : An aminoimidazole that is 1H-imidazole substituted by an amino group at position 4.		2.610aminoimidazole
malic acid
malic acid : A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.. 2-hydroxydicarboxylic acid : Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group.		2.45202-hydroxydicarboxylic acid;
C4-dicarboxylic acid		food acidity regulator;
fundamental metabolite
creatine
[no description available]		1.9410glycine derivative;
guanidines;
zwitterion		geroprotector;
human metabolite;
mouse metabolite;
neuroprotective agent;
nutraceutical
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.		2.01102-hydroxy monocarboxylic acidalgal 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.		2.4110sulfoxide;
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		4.1131aldehyde;
one-carbon compound		allergen;
carcinogenic agent;
disinfectant;
EC 3.5.1.4 (amidase) inhibitor;
environmental contaminant;
Escherichia coli metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite
glyoxylic acid
glyoxylic acid: RN given refers to parent cpd. glyoxylic acid : A 2-oxo monocarboxylic acid that is acetic acid bearing an oxo group at the alpha carbon atom.		2102-oxo monocarboxylic acid;
aldehydic acid		Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite
histamine
[no description available]		1.9610aralkylamino compound;
imidazoles		human metabolite;
mouse metabolite;
neurotransmitter
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.		2.7230elemental hydrogen;
elemental molecule;
gas molecular entity		antioxidant;
electron donor;
food packaging gas;
fuel;
human metabolite
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..		8.69100diatomic iodinenutrient
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.		2.4620alkyl alcohol;
one-carbon compound;
primary alcohol;
volatile organic compound		amphiprotic solvent;
Escherichia coli metabolite;
fuel;
human metabolite;
mouse metabolite;
Mycoplasma genitalium metabolite
phytic acid
Phytic Acid: Complexing agent for removal of traces of heavy metal ions. It acts also as a hypocalcemic agent.. myo-inositol hexakisphosphate : A myo-inositol hexakisphosphate in which each hydroxy group of myo-inositol is monophosphorylated.		1.9610inositol phosphate
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.		3.0750metal 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.		2.1310pyridine 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
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.		2.3720monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species
4-aminobenzoic acid
4-Aminobenzoic Acid: An aminobenzoic acid isomer that combines with pteridine and GLUTAMIC ACID to form FOLIC ACID. The fact that 4-aminobenzoic acid absorbs light throughout the UVB range has also resulted in its use as an ingredient in SUNSCREENS.. 4-ammoniobenzoate : A zwitterion obtained by transfer of a proton from the carboxy to the amino group of 4-aminobenzoic acid.. 4-aminobenzoic acid : An aminobenzoic acid in which the amino group is para to the carboxy group.		2.0510aminobenzoic acid;
aromatic amino-acid zwitterion		allergen;
Escherichia coli metabolite;
plant metabolite
phenol
[no description available]		2.0510phenolsantiseptic drug;
disinfectant;
human xenobiotic metabolite;
mouse metabolite
picolinic acid
picolinic acid: iron-chelating agent that inhibits DNA synthesis; may interfere with iron-dependent production of stable free organic radical which is essential for ribonucleotide reductase formation of deoxyribonucleotides; RN given refers to parent cpd; structure in Merck Index, 9th ed, #7206. picolinic acid : A pyridinemonocarboxylic acid in which the carboxy group is located at position 2. It is an intermediate in the metabolism of tryptophan.		2.0410pyridinemonocarboxylic acidhuman metabolite;
MALDI matrix material
pyridoxal
[no description available]		1.9510hydroxymethylpyridine;
methylpyridines;
monohydroxypyridine;
pyridinecarbaldehyde;
vitamin B6		cofactor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite
quinolinic acid
Quinolinic Acid: A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated CSF levels of quinolinic acid are correlated with the severity of neuropsychological deficits in patients who have AIDS.. pyridinedicarboxylic acid : Any member of the class of pyridines carrying two carboxy groups.. quinolinic acid : A pyridinedicarboxylic acid that is pyridine substituted by carboxy groups at positions 2 and 3. It is a metabolite of tryptophan.		2.0510pyridinedicarboxylic acidEscherichia coli metabolite;
human metabolite;
mouse metabolite;
NMDA receptor agonist
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.		2.3520divalent 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).		2.0210divalent 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.		2.1110alpha,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.		2.110sulfur oxoacidcatalyst
taurine
[no description available]		2.0510amino sulfonic acid;
zwitterion		antioxidant;
Escherichia coli metabolite;
glycine receptor agonist;
human metabolite;
mouse metabolite;
nutrient;
radical scavenger;
Saccharomyces cerevisiae metabolite
toluene
methylbenzene : Any alkylbenzene that is benzene substituted with one or more methyl groups.		2.4110methylbenzene;
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.		2.8630uric acidEscherichia 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.		3.6130isourea;
monocarboxylic acid amide;
one-carbon compound		Daphnia magna metabolite;
Escherichia coli metabolite;
fertilizer;
flour treatment agent;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite
vanillin
Vanilla: A plant genus of the family ORCHIDACEAE that is the source of the familiar flavoring used in foods and medicines (FLAVORING AGENTS).		2.0510benzaldehydes;
monomethoxybenzene;
phenols		anti-inflammatory agent;
anticonvulsant;
antioxidant;
flavouring agent;
plant metabolite
menthol
Menthol: A monoterpene cyclohexanol produced from mint oils.		2.0410p-menthane monoterpenoid;
secondary alcohol		volatile oil component
1,10-phenanthroline
1,10-phenanthroline: RN given refers to parent cpd; inhibits Zn-dependent metalloproteinases		7.7930phenanthrolineEC 2.7.1.1 (hexokinase) inhibitor;
EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor
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.		210aminonaphthalene;
naphthalenesulfonic acid		fluorescent probe
2,2'-dipyridyl
2,2'-Dipyridyl: A reagent used for the determination of iron.. 2,2'-bipyridine : A bipyridine in which the two pyridine moieties are linked by a bond between positions C-2 and C-2'.		2.7630bipyridinechelator;
ferroptosis inhibitor
3-methylcholanthrene
Methylcholanthrene: A carcinogen that is often used in experimental cancer studies.. 3-methylcholanthrene : A pentacyclic ortho- and peri-fused polycyclic arene consisting of a dihydrocyclopenta[ij]tetraphene ring system with a methyl substituent at the 3-position.		1.9510ortho- and peri-fused polycyclic arenearyl hydrocarbon receptor agonist;
carcinogenic agent
oxyquinoline
Oxyquinoline: An antiseptic with mild fungistatic, bacteriostatic, anthelmintic, and amebicidal action. It is also used as a reagent and metal chelator, as a carrier for radio-indium for diagnostic purposes, and its halogenated derivatives are used in addition as topical anti-infective agents and oral antiamebics.. quinolin-8-ol : A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes.		8.1550monohydroxyquinolineantibacterial agent;
antifungal agrochemical;
antiseptic drug;
iron chelator
acetaminophen
Acetaminophen: Analgesic antipyretic derivative of acetanilide. It has weak anti-inflammatory properties and is used as a common analgesic, but may cause liver, blood cell, and kidney damage.. paracetamol : A member of the class of phenols that is 4-aminophenol in which one of the hydrogens attached to the amino group has been replaced by an acetyl group.		2.2110acetamides;
phenols		antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
cyclooxygenase 3 inhibitor;
environmental contaminant;
ferroptosis inducer;
geroprotector;
hepatotoxic agent;
human blood serum metabolite;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
salophen
salophen: structure given in first source		2.1110carbonyl compound
acetazolamide
Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)		1.9510monocarboxylic acid amide;
sulfonamide;
thiadiazoles		anticonvulsant;
diuretic;
EC 4.2.1.1 (carbonic anhydrase) inhibitor
aluminum fluoride
[no description available]		2.0210aluminium coordination entity
diatrizoic acid
Diatrizoate: A commonly used x-ray contrast medium. As DIATRIZOATE MEGLUMINE and as Diatrizoate sodium, it is used for gastrointestinal studies, angiography, and urography.. amidotrizoic acid : A member of the class of benzoic acids that is benzoic acid having iodo substituents at the 2-, 4- and 6-positions and acetamido substituents at the 3- and 5-positions. It is used, mainly as its N-methylglucamine and sodium salts, as an X-ray contrast medium in gastrointestinal studies, angiography, and urography.		3.0410acetamides;
benzoic acids;
organoiodine compound		environmental contaminant;
radioopaque medium;
xenobiotic
camphor, (+-)-isomer
[no description available]		2.4720bornane monoterpenoid;
cyclic monoterpene ketone		plant metabolite
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.		2.0610organochlorine compound;
phenothiazines;
tertiary amine		anticoronaviral agent;
antiemetic;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
phenothiazine antipsychotic drug
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.		2.1710aminoquinoline;
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
clenbuterol
Clenbuterol: A substituted phenylaminoethanol that has beta-2 adrenomimetic properties at very low doses. It is used as a bronchodilator in asthma.. clenbuterol : A substituted aniline that is 2,6-dichloroaniline in which the hydrogen at position 4 has been replaced by a 2-(tert-butylamino)-1-hydroxyethyl group.		2.1110amino alcohol;
dichlorobenzene;
ethanolamines;
primary arylamine;
secondary amino compound;
substituted aniline		beta-adrenergic agonist;
bronchodilator agent;
sympathomimetic agent
diclofenac
Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.. diclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position.		3.5611amino acid;
aromatic amine;
dichlorobenzene;
monocarboxylic acid;
secondary amino compound		antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
pentetic acid
Pentetic Acid: An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium.		10.3931pentacarboxylic acidcopper chelator
enoxacin
Enoxacin: A broad-spectrum 6-fluoronaphthyridinone antibacterial agent that is structurally related to NALIDIXIC ACID.. enoxacin : A 1,8-naphthyridine derivative that is 1,4-dihydro-1,8-naphthyridine with an ethyl group at the 1 position, a carboxy group at the 3-position, an oxo sustituent at the 4-position, a fluoro substituent at the 5-position and a piperazin-1-yl group at the 7 position. An antibacterial, it is used in the treatment of urinary-tract infections and gonorrhoea.		2.17101,8-naphthyridine derivative;
amino acid;
fluoroquinolone antibiotic;
monocarboxylic acid;
N-arylpiperazine;
quinolone antibiotic		antibacterial drug;
DNA synthesis inhibitor
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.		2.1710
fleroxacin
Fleroxacin: A broad-spectrum antimicrobial fluoroquinolone. The drug strongly inhibits the DNA-supercoiling activity of DNA GYRASE.. fleroxacin : A fluoroquinolone antibiotic that is 4-oxo-1,4-dihydroquinoline which is substituted at positions 1, 3, 6, 7 and 8 by 2-fluoroethyl, carboxy, fluoro, 4-methylpiperazin-1-yl and fluoro groups, respectively. It is active against many Gram-positive and Gram-negative bacteria.		2.1710difluorobenzene;
fluoroquinolone antibiotic;
monocarboxylic acid;
N-alkylpiperazine;
quinolines		antibacterial drug;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
topoisomerase IV inhibitor
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.		2.0810nucleobase analogue;
organofluorine compound		antimetabolite;
antineoplastic agent;
environmental contaminant;
immunosuppressive agent;
radiosensitizing agent;
xenobiotic
furazolidone
Furazolidone: A nitrofuran derivative with antiprotozoal and antibacterial activity. Furazolidone acts by gradual inhibition of monoamine oxidase. (From Martindale, The Extra Pharmacopoeia, 30th ed, p514). furazolidone : A member of the class of oxazolidines that is 1,3-oxazolidin-2-one in which the hydrogen attached to the nitrogen is replaced by an N-{[(5-nitro-2-furyl)methylene]amino} group. It has antibacterial and antiprotozoal properties, and is used in the treatment of giardiasis and cholera.		2.2110nitrofuran antibiotic;
oxazolidines		antibacterial drug;
antiinfective agent;
antitrichomonal drug;
EC 1.4.3.4 (monoamine oxidase) inhibitor
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.		3.3711dialdehydecross-linking reagent;
disinfectant;
fixative
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.		4.131aromatic ketone;
hydroxypiperidine;
monochlorobenzenes;
organofluorine compound;
tertiary alcohol		antidyskinesia agent;
antiemetic;
dopaminergic antagonist;
first generation antipsychotic;
serotonergic antagonist
ibuprofen
Midol: combination of cinnamedrine, phenacetin, aspirin & caffeine		2.0310monocarboxylic acidantipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
radical scavenger;
xenobiotic
iothalamic acid
Iothalamic Acid: A contrast medium in diagnostic radiology with properties similar to those of diatrizoic acid. It is used primarily as its sodium and meglumine (IOTHALAMATE MEGLUMINE) salts.		4.3820organic molecular entity
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.		2.3520secondary alcohol;
secondary fatty alcohol		protic solvent
letrozole
[no description available]		3.5611nitrile;
triazoles		antineoplastic agent;
EC 1.14.14.14 (aromatase) inhibitor
mesalamine
Mesalamine: An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed). mesalamine : A monohydroxybenzoic acid that is salicylic acid substituted by an amino group at the 5-position.		2.1710amino acid;
aromatic amine;
monocarboxylic acid;
monohydroxybenzoic acid;
phenols		non-steroidal anti-inflammatory drug
o(6)-benzylguanine
O(6)-benzylguanine: a suicide inhibitor of O(6)-methylguanine-DNA methyltransferase activity		3.5611
quinone
benzoquinone : The simplest members of the class of benzoquinones, consisting of cyclohexadiene which is substituted by two oxo groups.. 1,4-benzoquinone : The simplest member of the class of 1,4-benzoquinones, obtained by the formal oxidation of hydroquinone to the corresponding diketone. It is a metabolite of benzene.. quinone : Compounds having a fully conjugated cyclic dione structure, such as that of benzoquinones, derived from aromatic compounds by conversion of an even number of -CH= groups into -C(=O)- groups with any necessary rearrangement of double bonds (polycyclic and heterocyclic analogues are included).		2.25101,4-benzoquinonescofactor;
human xenobiotic metabolite;
mouse metabolite
pentobarbital
Pentobarbital: A short-acting barbiturate that is effective as a sedative and hypnotic (but not as an anti-anxiety) agent and is usually given orally. It is prescribed more frequently for sleep induction than for sedation but, like similar agents, may lose its effectiveness by the second week of continued administration. (From AMA Drug Evaluations Annual, 1994, p236). pentobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and sec-pentyl groups.		1.9410barbituratesGABAA receptor agonist
phenoxybenzamine
Phenoxybenzamine: An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator.		1.9510aromatic amine
phenylbutazone
Phenylbutazone: A butyl-diphenyl-pyrazolidinedione that has anti-inflammatory, antipyretic, and analgesic activities. It has been used in ANKYLOSING SPONDYLITIS; RHEUMATOID ARTHRITIS; and REACTIVE ARTHRITIS.. phenylbutazone : A member of the class of pyrazolidines that is 1,2-diphenylpyrazolidine-3,5-dione carrying a butyl group at the 4-position.		1.9610pyrazolidinesantirheumatic drug;
EC 1.1.1.184 [carbonyl reductase (NADPH)] inhibitor;
metabolite;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
peripheral nervous system drug
potassium chloride
Potassium Chloride: A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.. potassium chloride : A metal chloride salt with a K(+) counterion.		1.9410inorganic chloride;
inorganic potassium salt;
potassium salt		fertilizer
4-aminobenzoic acid
para-Aminobenzoates: Benzoic acids, salts, or esters that contain an amino group attached to carbon number 4 of the benzene ring structure.. 4-aminobenzoate : An aromatic amino-acid anion that is the conjugate base of 4-aminobenzoic acid.		2.0510aminobenzoate;
aromatic amino-acid anion		Escherichia coli metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite
propidium
Propidium: Quaternary ammonium analog of ethidium; an intercalating dye with a specific affinity to certain forms of DNA and, used as diiodide, to separate them in density gradients; also forms fluorescent complexes with cholinesterase which it inhibits.		2.0610phenanthridines;
quaternary ammonium ion		fluorochrome;
intercalator
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.		1.9510naphthalenes;
propanolamine;
secondary amine		anti-arrhythmia drug;
antihypertensive agent;
anxiolytic drug;
beta-adrenergic antagonist;
environmental contaminant;
human blood serum metabolite;
vasodilator agent;
xenobiotic
sodium fluoride
[no description available]		2.0310fluoride saltmutagen
sulfasalazine
Sulfasalazine: A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907). sulfasalazine : An azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position.		2.2110
tetraethylammonium
Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)		2.0110quaternary ammonium ion
thalidomide
Thalidomide: A piperidinyl isoindole originally introduced as a non-barbiturate hypnotic, but withdrawn from the market due to teratogenic effects. It has been reintroduced and used for a number of immunological and inflammatory disorders. Thalidomide displays immunosuppressive and anti-angiogenic activity. It inhibits release of TUMOR NECROSIS FACTOR-ALPHA from monocytes, and modulates other cytokine action.. thalidomide : A racemate comprising equimolar amounts of R- and S-thalidomide.. 2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dione : A dicarboximide that is isoindole-1,3(2H)-dione in which the hydrogen attached to the nitrogen is substituted by a 2,6-dioxopiperidin-3-yl group.		3.5611phthalimides;
piperidones
thiram
Thiram: A dithiocarbamate chemical, used commercially in the rubber processing industry and as a fungicide. In vivo studies indicate that it inactivates the enzyme GLUTATHIONE REDUCTASE. It has mutagenic activity and may induce chromosomal aberrations.. thiram : An organic disulfide that results from the formal oxidative dimerisation of N,N-dimethyldithiocarbamic acid. It is widely used as a fungicidal seed treatment.		2.1310organic disulfideantibacterial drug;
antifungal agrochemical;
antiseptic drug
trientine
Trientine: An ethylenediamine derivative used as stabilizer for EPOXY RESINS, as ampholyte for ISOELECTRIC FOCUSING and as chelating agent for copper in HEPATOLENTICULAR DEGENERATION.. TETA : An azamacrocyle in which four nitrogen atoms at positions 1, 4, 8 and 11 of a fouteen-membered ring are each substituted with a carboxymethyl group.. 2,2,2-tetramine : A polyazaalkane that is decane in which the carbon atoms at positions 1, 4, 7 and 10 are replaced by nitrogens.		2.0410polyazaalkane;
tetramine		copper chelator
tyramine
[no description available]		2.2110monoamine molecular messenger;
primary amino compound;
tyramines		EC 3.1.1.8 (cholinesterase) inhibitor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter
zinc chloride
zinc chloride: RN given refers to parent cpd. zinc dichloride : A compound of zinc and chloride ions in the ratio 1:2. It exists in four crystalline forms, in each of which the Zn(2+) ions are trigonal planar coordinated to four chloride ions.		3.8921inorganic chloride;
zinc molecular entity		astringent;
disinfectant;
EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor;
Lewis acid
estriol
hormonin: estrogen replacement; each tablet contains 600 ug micronized 17beta-estradiol, 270 ug estriol and 1.4 mg estrone. chlorapatite : A phosphate mineral with the formula Ca5(PO4)3Cl.		2.111016alpha-hydroxy steroid;
17beta-hydroxy steroid;
3-hydroxy steroid		estrogen;
human metabolite;
human xenobiotic metabolite;
mouse metabolite
thymidine
[no description available]		1.9510pyrimidine 2'-deoxyribonucleosideEscherichia coli metabolite;
human metabolite;
metabolite;
mouse metabolite
benzimidazole
1H-benzimidazole : The 1H-tautomer of benzimidazole.		2.110benzimidazole;
polycyclic heteroarene
prednisone
Prednisone: A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.. prednisone : A synthetic glucocorticoid drug that is particularly effective as an immunosuppressant, and affects virtually all of the immune system. Prednisone is a prodrug that is converted by the liver into prednisolone (a beta-hydroxy group instead of the oxo group at position 11), which is the active drug and also a steroid.		2.131011-oxo 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;
immunosuppressive agent;
prodrug
idoxuridine
[no description available]		210organoiodine compound;
pyrimidine 2'-deoxyribonucleoside		antiviral drug;
DNA synthesis inhibitor
amifampridine
Amifampridine: 4-Aminopyridine derivative that acts as a POTASSIUM CHANNEL blocker to increase release of ACETYLCHOLINE from nerve terminals. It is used in the treatment of CONGENITAL MYASTHENIC SYNDROMES.		2.2110aminopyridine
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.		210amino 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
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.		2.7730pseudohalide anionEC 1.9.3.1 (cytochrome c oxidase) inhibitor
sucrose
Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.		3.5611glycosyl glycosidealgal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
osmolyte;
Saccharomyces cerevisiae metabolite;
sweetening agent
uridine
[no description available]		1.9710uridinesdrug 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.		1.9710pyrimidine ribonucleoside 5'-monophosphate;
uridine 5'-phosphate		Escherichia coli metabolite;
human metabolite;
mouse metabolite
carbostyril
Quinolones: A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID.. quinolin-2(1H)-one : A quinolone that is 1,2-dihydroquinoline substituted by an oxo group at position 2.		2.1710monohydroxyquinoline;
quinolone		bacterial xenobiotic metabolite
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.		7.86342ethylenediamine 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.		1.9510amino 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
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.		7.6730amino 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
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.		2.3520aspartate 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.		2.4420
cytidine
[no description available]		1.9710cytidinesEscherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite
sodium citrate, anhydrous
Sodium Citrate: Sodium salts of citric acid that are used as buffers and food preservatives. They are used medically as anticoagulants in stored blood, and for urine alkalization in the prevention of KIDNEY STONES.. sodium citrate : The trisodium salt of citric acid.		2.110organic sodium saltanticoagulant;
flavouring agent
mannitol
[no description available]		1.9410mannitolallergen;
antiglaucoma drug;
compatible osmolytes;
Escherichia coli metabolite;
food anticaking agent;
food bulking agent;
food humectant;
food stabiliser;
food thickening agent;
hapten;
metabolite;
osmotic diuretic;
sweetening agent
asparagine
Asparagine: A non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). asparagine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group.		210amino acid zwitterion;
asparagine;
aspartate family amino acid;
L-alpha-amino acid;
proteinogenic amino acid		Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite
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.		1.9410amino 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
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.		2.6120arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid		biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical
ethane
Ethane: A two carbon alkane with the formula H3C-CH3.. ethane : An alkane comprising of two carbon atoms.		2.2110alkane;
gas molecular entity		plant metabolite;
refrigerant
acetylene
[no description available]		7.0710alkyne;
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.		3.5611boranes;
mononuclear parent hydride
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.		7.0310aliphatic nitrile;
volatile organic compound		EC 3.5.1.4 (amidase) inhibitor;
NMR chemical shift reference compound;
polar aprotic solvent
iodoform
[no description available]		2.110iodomethanes
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.		2.0310fluoroalkanoic acidhuman xenobiotic metabolite;
NMR chemical shift reference compound;
reagent
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)		2.5320primary amino compound;
triol		buffer
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.		7.0810alkadiene;
hemiterpene;
volatile organic compound		plant metabolite
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.		3.83100alpha,beta-unsaturated monocarboxylic acidmetabolite
bisphenol a
4,4'-isopropylidene diphenol: stimulates proliferative responses and cytokine productions of murine spleen cells and thymus cells in vitro. bisphenol : By usage, the methylenediphenols, HOC6H4CH2C6H4OH, commonly p,p-methylenediphenol, and their substitution products (generally derived from condensation of two equivalent amounts of a phenol with an aldehyde or ketone). The term also includes analogues in the the methylene (or substituted methylene) group has been replaced by a heteroatom.. bisphenol A : A bisphenol that is 4,4'-methanediyldiphenol in which the methylene hydrogens are replaced by two methyl groups.		2.1310bisphenolendocrine disruptor;
environmental contaminant;
xenobiotic;
xenoestrogen
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.		2.520organic chloride salt;
xanthene dye		fluorescent probe;
fluorochrome;
histological dye
8-hydroxyquinoline-5-sulfonic acid
8-hydroxyquinoline-5-sulfonic acid: RN given refers to parent cpd		2.0610
n-vinyl-2-pyrrolidinone
N-vinyl-2-pyrrolidinone: monomer of POVIDONE; structure given in first source		2.4820pyrrolidin-2-ones
1,2,3,4-tetrahydroisoquinoline
1,2,3,4-tetrahydroisoquinoline: RN given refers to cpd with locants as specified		2.0610isoquinolines
isatin
tribulin: endogenous MONOAMINE OXIDASE inhibitory activity extractable into ethyl acetate found in brain and many mammalian tissues and fluids; ISATIN is a major component; produced in excess following alcohol withdrawal;		7.4820indoledioneEC 1.4.3.4 (monoamine oxidase) inhibitor;
plant metabolite
xanthenes
Xanthenes: Compounds with three aromatic rings in linear arrangement with an OXYGEN in the center ring.		2.1110xanthene
1,2-diaminobenzene
1,2-diaminobenzene: RN given refers to parent cpd. 1,2-phenylenediamine : A phenylenediamine in which the two amino groups are ortho to each other.		2.7620phenylenediaminehydrogen donor
dilactide
dilactide: structure given in first source		2.7630dioxanes
furaldehyde
Furaldehyde: A heterocyclic compound consisting of a furan where the hydrogen at position 2 is substituted by a formyl group.. furfural : An aldehyde that is furan with the hydrogen at position 2 substituted by a formyl group.		3.5611aldehyde;
furans		Maillard reaction product;
metabolite
3,5-dinitrobenzoic acid
3,5-dinitrobenzoic acid : A member of the class of benzoic acids that is benzoic acid in which the hydrogens at positions 3 and 5 are replaced by nitro groups.		2.110benzoic acids;
C-nitro compound
methylaniline
methylaniline: RN given refers to parent cpd. methylaniline : A substituted aniline carrying one or more methyl groups at unspecified positions.		2.0610methylaniline;
phenylalkylamine;
secondary amine
butane
butane : A straight chain alkane composed of 4 carbon atoms.		2.110alkane;
gas molecular entity		food propellant;
refrigerant
1,3-butadiene
buta-1,3-diene : A butadiene with unsaturation at positions 1 and 3.		2.0510butadienecarcinogenic agent;
mutagen
acrolein
[no description available]		2.1110enalherbicide;
human xenobiotic metabolite;
toxin
acrylonitrile
[no description available]		2.0710aliphatic 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.		2.0510propynol;
terminal acetylenic compound;
volatile organic compound		antifungal agent;
Saccharomyces cerevisiae metabolite
maleic anhydride
Maleic Anhydrides: Used in copolymerization reactions, in the Diels-Alder(diene)synthesis, in the preparation of resins, pharmaceuticals and agricultural chemicals. It is a powerful irritant and causes burns.. maleic anhydride : A cyclic dicarboxylic anhydride that is the cyclic anhydride of maleic acid.		2.3110cyclic dicarboxylic anhydride;
furans		allergen
melamine
melamine: RN given refers to parent cpd; structure. melamine : A trimer of cyanamide, with a 1,3,5-triazine skeleton.		2.110triamino-1,3,5-triazinexenobiotic metabolite
triethylene glycol dimethacrylate
[no description available]		2.9640
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.		2.0810alkane;
volatile organic compound		non-polar solvent;
refrigerant
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.		7.610pyrrole;
secondary amine
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.		7.1110furans;
mancude organic heteromonocyclic parent;
monocyclic heteroarene		carcinogenic agent;
hepatotoxic agent;
Maillard reaction product
piperidine
[no description available]		2.0510azacycloalkane;
piperidines;
saturated organic heteromonocyclic parent;
secondary amine		base;
catalyst;
human metabolite;
non-polar solvent;
plant metabolite;
protic solvent;
reagent
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.		2.0510hydroxyether
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).		2.1310alkaneplant metabolite
iodohippuric acid
Iodohippuric Acid: An iodine-containing compound used in pyelography as a radiopaque medium. If labeled with radioiodine, it can be used for studies of renal function.. 2-iodohippuric acid : A member of the class of benzamides resulting from the formal condensation of the carboxy group of 2-iodobenzoic acid with the amino group of glycine.		5.65260benzamides;
N-acylglycine;
organoiodine compound
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.		2.0210naphtholantinematodal drug;
genotoxin;
human urinary metabolite;
human xenobiotic metabolite;
mouse metabolite;
radical scavenger
nitrilotriacetic acid
Nitrilotriacetic Acid: A derivative of acetic acid, N(CH2COOH)3. It is a complexing (sequestering) agent that forms stable complexes with Zn2+. (From Miall's Dictionary of Chemistry, 5th ed.)		1.9810NTA;
tricarboxylic acid		carcinogenic agent;
nephrotoxic agent
n-(hydroxyethyl)ethylenediaminetriacetic acid
N-(hydroxyethyl)ethylenediaminetriacetic acid: RN given refers to parent cpd		1.9810
ethyl acetoacetate
ethyl acetoacetate: RN given refers to unlabeled parent cpd. ethyl acetoacetate : An ethyl ester resulting from the formal condensation of the carboxy group of acetoacetic acid with ethanol.		210ethyl esterantibacterial agent;
flavouring agent;
plant metabolite
benzoxazoles
1,3-benzoxazole : A benzoxazole in which the benzene ring is fused to a 1,3-oxazole ring across positions 4 and 5.. benzoxazole : Compounds based on a fused 1,2- or 1,3-oxazole and benzene bicyclic ring skeleton.		7.05101,3-benzoxazoles;
mancude organic heterobicyclic parent
triethylenediamine
triethylenediamine: RN given refers to parent cpd. triethylenediamine : An organic heterobicylic compound that is piperazine with an ethane-1,2-diyl group forming a bridge between N1 and N4. It is typically used as a catalyst in polymerization reactions.		2.110bridged compound;
diamine;
saturated organic heterobicyclic parent;
tertiary amino compound		antioxidant;
catalyst;
reagent
adamantane
Adamantane: A tricyclo bridged hydrocarbon.		2.6320adamantanes;
polycyclic alkane
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.		2.73301,3-oxazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene
di-2-(ethylhexyl)phosphoric acid
di-2-(ethylhexyl)phosphoric acid: RN given refers to parent cpd		210
calcium gluconate
[no description available]		1.9810calcium saltnutraceutical
perfluorobutane
perfluorobutane: component of the echo contrast agent, BR14, which consists of perfluorobutane gas microbubbles. perflubutane : A fluorocarbon that is butane in which all of the hydrogens have been replaced by fluorines. Microbubbles of preflubutane are used in the ultrasound contrast agent BR14.		2.0510fluoroalkane;
fluorocarbon;
gas molecular entity		ultrasound contrast agent
silicon carbide
silicon carbide: fibers used for reinforcement of porcelain crowns; a feldspathic body (gingival) porcelain; used to coat titanium hip prostheses		1.9710organosilicon compound
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.		2.1110calcium salt;
carbonate salt;
inorganic calcium salt;
one-carbon compound		antacid;
fertilizer;
food colouring;
food firming agent
dipicolinic acid
dipicolinic acid : A pyridinedicarboxylic acid carrying two carboxy groups at positions 2 and 6.		2.4920pyridinedicarboxylic acidbacterial metabolite
caprolactone
hexano-6-lactone : A epsilon-lactone that is oxepane substituted by an oxo group at position 2.		2.0510epsilon-lactone
podophyllotoxin
Podophyllum: A genus of poisonous American herbs, family BERBERIDACEAE. The roots yield PODOPHYLLOTOXIN and other pharmacologically important agents. The plant was formerly used as a cholagogue and cathartic. It is different from the European mandrake, MANDRAGORA.		2.0610furonaphthodioxole;
lignan;
organic heterotetracyclic compound		antimitotic;
antineoplastic agent;
keratolytic drug;
microtubule-destabilising agent;
plant metabolite;
tubulin modulator
tropolone
Tropolone: A seven-membered aromatic ring compound. It is structurally related to a number of naturally occurring antifungal compounds (ANTIFUNGAL AGENTS).. tropolone : A cyclic ketone that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2. It is a toxin produced by the agricultural pathogen Burkholderia plantarii.		2.4420alpha-hydroxy ketone;
cyclic ketone;
enol		bacterial metabolite;
fungicide;
toxin
methamphetamine
Methamphetamine: A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed.. methamphetamine : A member of the class of amphetamines in which the amino group of (S)-amphetamine carries a methyl substituent.		2.1110amphetamines;
secondary amine		central nervous system stimulant;
environmental contaminant;
neurotoxin;
psychotropic drug;
xenobiotic
dicyclohexylcarbodiimide
1,3-dicyclohexylcarbodiimide : A carbodiimide compound having a cyclohexyl substituent on both nitrogen atoms.		210carbodiimideATP synthase inhibitor;
cross-linking reagent;
peptide coupling reagent
uranyl acetate
uranyl acetate: used after fixation in uranaffin procedure; RN given refers to parent cpd		2.5720
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.		2.0610
lithium carbonate
Lithium Carbonate: A lithium salt, classified as a mood-stabilizing agent. Lithium ion alters the metabolism of BIOGENIC MONOAMINES in the CENTRAL NERVOUS SYSTEM, and affects multiple neurotransmission systems.		1.9710carbonate salt;
lithium salt		antimanic drug
congo red
Congo Red: An acid dye used in testing for hydrochloric acid in gastric contents. It is also used histologically to test for AMYLOIDOSIS.. Congo Red : An indicator dye that is blue-violet at pH 3.0 and red at pH 5.0.		2.110bis(azo) compound
3-hydroxyflavone
3-hydroxyflavone: structure given in first source. flavonol : A monohydroxyflavone that is the 3-hydroxy derivative of flavone.		2.0210flavonols;
monohydroxyflavone
1,4-cyclohexadiene
[no description available]		2.1310cyclohexadiene
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.		2.2110
adamantanecarboxylic acid
[no description available]		2.1710
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.		2.4720enoate esterallergen;
polymerisation monomer
rhodamine 6g
rhodamine 6G: RN given refers to HCl		2.1310
carmine
Carmine: Coloring matter from the insect Coccus cacti L. It is used in foods, pharmaceuticals, toiletries, etc., as a dye, and also has use as a microscopic stain and biological marker.		2.1110
beryllium oxide
beryllium oxide : A beryllium molecular entity consisting of beryllium (+2 oxidation state) and oxide in the ratio 1:1. In the solid state, BeO adopts the hexagonal wurtzite structure form while in the vapour phase, it is present as discrete diatomic covalent molecules.		1.9610beryllium molecular entity;
metal oxide		carcinogenic agent
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).		2.4420
cadmium oxide
cadmium oxide: causes severe lung damage; RN given refers to parent cpd		1.9610
germanium oxide
germanium oxide: has antimutagenic effects; RN given refers to cpd with MF GeO2		3.1950
zinc oxide
Zinc Oxide: A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock.		5.05120zinc molecular entity
vanadium pentoxide
[no description available]		2.0810vanadium oxide
molybdenum disulfide
[no description available]		2.1510sulfide salt
arsenic trioxide
Arsenic Trioxide: An inorganic compound with the chemical formula As2O3 that is used for the treatment of ACUTE PROMYELOCYTIC LEUKEMIA in patients who have relapsed from, or are resistant to, conventional drug therapy.		1.9610
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.		2.1110alpha-tocopherolalgal metabolite;
antiatherogenic agent;
anticoagulant;
antioxidant;
antiviral agent;
EC 2.7.11.13 (protein kinase C) inhibitor;
immunomodulator;
micronutrient;
nutraceutical;
plant metabolite
(ethylenedinitrilo)-tetramethylenephosphonic acid
(ethylenedinitrilo)-tetramethylenephosphonic acid: structure; RN given refers to parent cpd		2.4220
selenomethionine
[no description available]		1.9510selenoamino acid;
selenomethionines		plant metabolite
9,10-diphenylanthracene
[no description available]		2.1710anthracenesfluorochrome;
photosensitizing agent
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.		4.3241diarylmethane
stearylamine
stearylamine: RN given refers to parent cpd. octadecan-1-amine : An 18-carbon primary aliphatic amine.		2.1110primary aliphatic aminefilm-forming compound
paraquat
Paraquat: A poisonous dipyridilium compound used as contact herbicide. Contact with concentrated solutions causes irritation of the skin, cracking and shedding of the nails, and delayed healing of cuts and wounds.. paraquat : An organic cation that consists of 4,4'-bipyridine bearing two N-methyl substituents loctated at the 1- and 1'-positions.		2.2510organic cationgeroprotector;
herbicide
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.		2.07102-benzofurans;
gamma-lactone;
organic heteropentacyclic compound;
oxaspiro compound;
polyphenol;
xanthene dye		fluorescent dye;
radioopaque medium
3-(trimethoxysilyl)propyl methacrylate
3-(trimethoxysilyl)propyl methacrylate: structure in first source		2.0510
fluorescein-5-isothiocyanate
Fluorescein-5-isothiocyanate: Fluorescent probe capable of being conjugated to tissue and proteins. It is used as a label in fluorescent antibody staining procedures as well as protein- and amino acid-binding techniques.. fluorescein 5-isothiocyanate : The 5-isomer of fluorescein isothiocyanate. Acts as a fluorescent probe capable of being conjugated to tissue and proteins; used as a label in fluorescent antibody staining procedures as well as protein- and amino acid-binding techniques.		2.110fluorescein isothiocyanate
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.		2.4920carbon oxoanion
ammonium nitrate
ammonium nitrate: structure. ammonium nitrate : The ammonium salt of nitric acid.		2.0810ammonium salt;
inorganic molecular entity;
inorganic nitrate salt		explosive;
fertilizer;
oxidising agent
dysprosium
Dysprosium: An element of the rare earth family that has the atomic symbol Dy, atomic number 66, and atomic weight 162.50. Dysprosium is a silvery metal used primarily in the form of various salts.		9.41220f-block element atom;
lanthanoid atom
iridium
Iridium: A metallic element with the atomic symbol Ir, atomic number 77, and atomic weight 192.22.		8.2560cobalt group element atom;
platinum group metal atom
lanthanum
[no description available]		11.39540f-block element atom;
lanthanoid atom;
scandium group element atom
lutetium
Lutetium: An element of the rare earth family of metals. It has the atomic symbol Lu, atomic number 71, and atomic weight 175.		6.66410d-block element atom;
lanthanoid atom
manganese
Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035). manganese(4+) : A manganese cation that is monoatomic and has a formal charge of +4.		3.6490elemental manganese;
manganese group element atom		Escherichia coli metabolite;
micronutrient
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.		8.680elemental 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.		3.570chromium group element atommicronutrient
neptunium
Neptunium: A radioactive element of the actinide metals family. It has the atomic symbol Np, and atomic number 93.		1.9510actinoid atom;
f-block element atom
neodymium
Neodymium: An element of the rare earth family of metals. It has the atomic symbol Nd, atomic number 60, and atomic weight 144.24, and is used in industrial applications.		5.49640f-block element atom;
lanthanoid atom
niobium
Niobium: A metal element atomic number 41, atomic weight 92.906, symbol Nb.		3.83110vanadium group element atom
osmium
Osmium: A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os.		2.0310iron group element atom;
platinum group metal 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.		4.4870metal 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.		2.4820elemental platinum;
nickel group element atom;
platinum group metal atom
plutonium
Plutonium: A naturally radioactive element of the actinide metals series. It has the atomic symbol Pu, and atomic number 94. Plutonium is used as a nuclear fuel, to produce radioisotopes for research, in radionuclide batteries for pacemakers, and as the agent of fission in nuclear weapons.		2.6430actinoid atom;
f-block element atom
praseodymium
Praseodymium: An element of the rare earth family of metals. It has the atomic symbol Pr, atomic number 59, and atomic weight 140.91.		9.57260f-block element atom;
lanthanoid atom
promethium
Promethium: A radioactive element of the rare earth family of metals. It has the atomic symbol Pm, and atomic number 61. It has been used in the construction of atomic batteries, in the preparation of self-luminous compounds, and as a beta-particle source for thickness gauges.		2.6330f-block element atom;
lanthanoid atom
rhenium
Rhenium: A metal, atomic number 75, atomic weight 186.207, symbol Re.		2.4720manganese group element atom
rhodium
Rhodium: A hard and rare metal of the platinum group, atomic number 45, atomic weight 102.905, symbol Rh.. rhodium atom : A cobalt group element atom of atomic number 45.		2.0210cobalt group element 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.		2.7430iron group element atom;
platinum group metal atom
samarium
Samarium: An element of the rare earth family of metals. It has the atomic symbol Sm, atomic number 62, and atomic weight 150.36. The oxide is used in the control rods of some nuclear reactors.		4.83340f-block element atom;
lanthanoid 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.		4.26190d-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.		3.5980copper group element atom;
elemental silver		Escherichia coli metabolite
tantalum
Tantalum: A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices.		3.1750vanadium group element atom
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.		7.59500manganese group element atom
terbium
Terbium: An element of the rare earth family of metals. It has the atomic symbol Tb, atomic number 65, and atomic weight 158.92.		4.87350f-block element atom;
lanthanoid atom
thorium
Thorium: A radioactive element of the actinide series of metals. It has an atomic symbol Th, atomic number 90, and atomic weight 232.04. It is used as fuel in nuclear reactors to produce fissionable uranium isotopes. Because of its radioopacity, various thorium compounds are used to facilitate visualization in roentgenography.		2.4220actinoid atom;
f-block element atom
thulium
Thulium: An element of the rare earth family of metals. It has the atomic symbol Tm, atomic number 69, and atomic weight 168.93.		7.131080f-block element atom;
lanthanoid 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.		6.74292titanium 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.		3.72100chromium group element atommicronutrient
americium
Americium: A completely man-made radioactive actinide with atomic symbol Am, and atomic number 95. Its valence can range from +3 to +6. Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysis and as a radiation source for radiotherapy.		2.8940actinoid atom;
f-block element atom
cadmium
Cadmium: An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.. elemental cadmium : An element in the zinc group of the periodic table with atomic number 48, atomic mass 112, M.P. 321degreeC, and B.P. 765degreeC). An odourless, tasteless, and highly poisonous soft, ductile, lustrous metal with electropositive properties. It has eight stable isotopes: (106)Cd, (108)Cd,(110)Cd, (111)Cd, (112)Cd, (113)Cd, (114)Cd and (116)Cd, with (112)Cd and (114)Cd being the most common.		3.78110cadmium molecular entity;
zinc group element atom
cerium
Cerium: An element of the rare earth family of metals. It has the atomic symbol Ce, atomic number 58, and atomic weight 140.12. Cerium is a malleable metal used in industrial applications.		4.63270f-block element atom;
lanthanoid atom
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.		6.19182chromium group element atom;
metal allergen		micronutrient
erbium
Erbium: Erbium. An element of the rare earth family of metals. It has the atomic symbol Er, atomic number 68, and atomic weight 167.26.		10.542722f-block element atom;
lanthanoid atom
europium
Europium: An element of the rare earth family of metals. It has the atomic symbol Eu, atomic number 63, and atomic weight 152. Europium is used in the form of its salts as coatings for cathode ray tubes and in the form of its organic derivatives as shift reagents in NMR spectroscopy.		5.62730f-block element atom;
lanthanoid atom
gadolinium
Gadolinium: An element of the rare earth family of metals. It has the atomic symbol Gd, atomic number 64, and atomic weight 157.25. Its oxide is used in the control rods of some nuclear reactors.		5.87930f-block element atom;
lanthanoid atom
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.		9.86300copper group element atom;
elemental gold
hafnium
Hafnium: A metal element of atomic number 72 and atomic weight 178.49, symbol Hf.		2.7330titanium group element atom
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.		2.4620monoatomic helium;
noble gas atom;
s-block element atom		food packaging gas
holmium
Holmium: An element of the rare earth family of metals. It has the atomic symbol Ho, atomic number 67, and atomic weight 164.93.		10.18460f-block element atom;
lanthanoid atom
uranium
Uranium: A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors.		1.9510actinoid atom;
f-block element atom;
monoatomic uranium
vanadium
Vanadium: A metallic element with the atomic symbol V, atomic number 23, and atomic weight 50.94. It is used in the manufacture of vanadium steel. Prolonged exposure can lead to chronic intoxication caused by absorption usually via the lungs.		7.9140elemental vanadium;
vanadium group element atom		micronutrient
xenon
Xenon: A noble gas with the atomic symbol Xe, atomic number 54, and atomic weight 131.30. It is found in the earth's atmosphere and has been used as an anesthetic.		2.8740monoatomic xenon;
noble gas atom;
p-block element atom
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.		8.172171d-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.		4.36190titanium group element atom
cesium chloride
cesium chloride: RN given refers to unlabeled cpd. caesium chloride : The inorganic chloride salt of caesium; each caesium ion is coordinated by eight chlorine ions.		2.0810inorganic caesium salt;
inorganic chloride		phase-transfer catalyst;
vasoconstrictor agent
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.		2.2510chlorine 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		7.3110delta-lactone;
pyranoindolizinoquinoline;
quinoline alkaloid;
tertiary alcohol		antineoplastic agent;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
genotoxin;
plant metabolite
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.		2.3820diatomic bromine
barium sulfate
Barium Sulfate: A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.. barium sulfate : A metal sulfate with formula BaO4S. Virtually insoluble in water at room temperature, it is mostly used as a component in oil well drilling fluid it occurs naturally as the mineral barite.		3.1150barium salt;
inorganic barium salt;
metal sulfate		radioopaque medium
tricalcium phosphate
tricalcium phosphate: a form of tricalcium phosphate used as bioceramic bone replacement material; see also records for alpha-tricalcium phosphate, beta-tricalcium phosphate, calcium phosphate; apatitic tricalcium phosphate Ca9(HPO4)(PO4)5(OH) is the calcium orthophosphate leading to beta tricalcium phosphate Ca3(PO4)2 (b-TCP). calcium phosphate : A calcium salt composed of calcium and phosphate/diphosphate ions; present in milk and used for the mineralisation of calcified tissues.		3.0240calcium phosphate
lead chloride
lead chloride: RN in 9th CI Form Index for cotunnite: 14639-87-3; RN given refers to cpd with MF of Pb-Cl2. lead(II) chloride : An inorganic chloride consisting of two chlorine atoms covalently bound to a central lead atom.		2.0210inorganic chloride;
lead coordination entity
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.		2.0710calcium salt;
inorganic calcium salt
potassium sulfate
potassium sulfate: RN given refers to cpd with MF of K2-H2SO4		2.0210inorganic potassium salt;
potassium salt
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.		2.420dihydrogen
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.		4.49220diatomic fluorine;
gas molecular entity		NMR chemical shift reference compound
fluorine monoxide
[no description available]		4.05140oxygen halide
lead fluoride
lead fluoride: RN given refers to cpd with unknown MF		2.4320
zinc fluoride
[no description available]		2.7530
silver chloride
[no description available]		2.0610inorganic chloride;
silver salt
deuterium oxide
Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.		2.3920deuterated compound;
water		NMR solvent
fluorosulfonic acid
perfluorosulfonic acid: sulfonated tetrafluoroethylene-based fluoropolymer–copolymer		2.3110sulfur oxoacidNMR solvent
molybdate ion
molybdate : A divalent inorganic anion obtained by removal of both protons from molybdic acid		2.830divalent inorganic anion;
molybdenum oxoanion		Escherichia coli metabolite
calcium pyrophosphate
Calcium Pyrophosphate: An inorganic pyrophosphate which affects calcium metabolism in mammals. Abnormalities in its metabolism occur in some human diseases, notably HYPOPHOSPHATASIA and pseudogout (CHONDROCALCINOSIS).		1.9510calcium phosphate
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.		2.0510elemental molecule;
gas molecular entity;
reactive oxygen species;
triatomic oxygen		antiseptic drug;
disinfectant;
electrophilic reagent;
greenhouse gas;
mutagen;
oxidising agent;
tracer
tellurous acid
tellurous acid: tellurite anion inhibits oxidation of NAD-linked substrates in kidney & liver mitochondria; RN given refers to parent cpd		4.12150tellurium oxoacid
ethyl 4-dimethylaminobenzoate
ethyl 4-dimethylaminobenzoate: slow-acting amine polymerization accelerator. parbenate : A benzoate ester that is ethyl benzoate substituted by a dimethylamino group at position 4.		2.0510benzoate ester;
ethyl ester;
tertiary amino compound
camphoroquinone
camphoroquinone: a natural monoterpene, non-aromatic quinone; structure given in first source. bornane-2,3-dione : A bornane monoterpenoid that is bicyclo[2.2.1]heptane substituted by methyl groups at positions 1, 7 and 7 and oxo groups at positions 2 and 3.		2.4620bornane monoterpenoid;
carbobicyclic compound
chlormerodrin
Chlormerodrin: A mercurial compound that has been used as a diuretic but is now superseded by more potent and less toxic drugs. The radiolabeled form has been used as a diagnostic and research tool.. chlormerodrin : Urea in which one of the hydrogens is substituted by a 3-chloromercury-2-methoxyprop-1-yl group. It was formerly used as a diuretic, but more potent and less toxic drugs are now available. Its radiolabelled ((197)Hg, (203)Hg) forms were used in diagnostic aids in renal imaging and brain scans.		9.4351organomercury compound;
ureas		diagnostic agent;
diuretic
trolamine salicylate
Arthritis: Acute or chronic inflammation of JOINTS.		2.3620
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.		3.6890titanium oxidesfood colouring
menthone
menthone : The trans-stereoisomer of p-menthan-3-one.. (-)-menthone : A menthone that is cyclohexanone substituted by a methyl and an isopropyl group at positions 5 and 2 respectively (the 2S,5R-stereoisomer).		2.0410menthone
salen
disalicylaldehyde ethylenediamine: reagents for determination of iron		2.0810
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.		2.0410
carbamothioic acid, s,s'-(2-(dimethylamino)-1,3-propanediyl) ester
carbamothioic acid, S,S'-(2-(dimethylamino)-1,3-propanediyl) ester: RN given refers to parent cpd; Padan refers to mono-HCl		2.0810nereistoxin analogue insecticide
fluorides
[no description available]		9.132253halide anion;
monoatomic fluorine
chromium
chromium hexavalent ion: a human respiratory carcinogen		3.5611chromium cation;
monoatomic hexacation
iodine
[no description available]		2.0310halide anion;
monoatomic iodine		human metabolite
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.		3.0850benzenes;
phenyl acetates
triamcinolone
Triamcinolone: A glucocorticoid given, as the free alcohol or in esterified form, orally, intramuscularly, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. (From Martindale, The Extra Pharmacopoeia, 30th ed, p739). triamcinolone : A C21-steroid hormone that is 1,4-pregnadiene-3,20-dione carrying four hydroxy substituents at positions 11beta, 16alpha, 17alpha and 21 as well as a fluoro substituent at position 9. Used in the form of its 16,17-acetonide to treat various skin infections.		1.951011beta-hydroxy steroid;
16alpha-hydroxy steroid;
17alpha-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid hormone;
fluorinated steroid;
glucocorticoid;
primary alpha-hydroxy ketone;
tertiary alpha-hydroxy ketone		anti-allergic agent;
anti-inflammatory drug
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.		7.7130
alkenes
[no description available]		3.2860
azides
Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3.		210pseudohalide anionmitochondrial respiratory-chain inhibitor
amoxicillin
Amoxicillin: A broad-spectrum semisynthetic antibiotic similar to AMPICILLIN except that its resistance to gastric acid permits higher serum levels with oral administration.. amoxicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-(4-hydroxyphenyl)acetamido group.		2.1710penicillin allergen;
penicillin		antibacterial drug
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).		2.3110taxane diterpenoid;
tetracyclic diterpenoid		antineoplastic agent;
human metabolite;
metabolite;
microtubule-stabilising agent
n,n'-bis(2-hydroxybenzyl)ethylenediamine-n,n'-diacetic acid
[no description available]		2.0210
adenosine
quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit		1.9710adenosines;
purines D-ribonucleoside		analgesic;
anti-arrhythmia drug;
fundamental metabolite;
human metabolite;
vasodilator agent
gadolinium chloride
gadolinium chloride: a macrophage inhibitor; reduces pulmonary injury and inflammatory mediator production induced by inhaled ozone		2.420gadolinium coordination entityTRP channel blocker
vanadates
Vanadates: Oxyvanadium ions in various states of oxidation. They act primarily as ion transport inhibitors due to their inhibition of Na(+)-, K(+)-, and Ca(+)-ATPase transport systems. They also have insulin-like action, positive inotropic action on cardiac ventricular muscle, and other metabolic effects.. vanadate(3-) : A vanadium oxoanion that is a trianion with formula VO4 in which the vanadium is in the +5 oxidation state and is attached to four oxygen atoms.		2.1110trivalent inorganic anion;
vanadium oxoanion		EC 3.1.3.1 (alkaline phosphatase) inhibitor;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor;
EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor
trifluoromethanesulfonic acid
trifluoromethanesulfonic acid: deblocking reagent for peptide synthesis; RN given refers to parent cpd. triflic acid : A one-carbon compound that is methanesulfonic acid in which the hydrogens attached to the methyl carbon have been replaced by fluorines.		210one-carbon compound;
perfluoroalkanesulfonic acid
tellurium dioxide
[no description available]		2.7330
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.		2.0310inorganic phosphate salt;
inorganic potassium salt
barium fluoride
barium fluoride: detector material used in position emission tomography (PET) cameras		2.4920
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.		2.4520hydrochlorideadrenergic 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.		1.9510D-glucopyranoseepitope;
mouse metabolite
cyclen
cyclen: macrocyclic polyamine metal-complexing agent. 1,4,7,10-tetraazacyclododecane : An azacycloalkane that is cyclododecane in which the carbon atoms at positions 1, 4, 7 and 10 are replaced by nitrogen atoms.		8.1650azacycloalkane;
crown amine;
saturated organic heteromonocyclic parent
chlorin
chlorin: RN given refers to parent cpd; structure. chlorin : A tetrapyrrole fundamental parent that is obtained by formal hydrogenation across the 2,3-double bond of porphyrin.		2.0710
fluorophosphate
fluorophosphate: inhibits Phosphorylas phosphatase irreversibly; RN given refers to parent cpd		2.7330fluorine molecular entity;
phosphoric acid derivative
erbium chloride
[no description available]		2.0810
iridium radioisotopes
Iridium Radioisotopes: Unstable isotopes of iridium that decay or disintegrate emitting radiation. Ir atoms with atomic weights 182-190, 192, and 194-198 are radioactive iridium isotopes.		5.77270
xenon radioisotopes
Xenon Radioisotopes: Unstable isotopes of xenon that decay or disintegrate emitting radiation. Xe atoms with atomic weights 121-123, 125, 127, 133, 135, 137-145 are radioactive xenon isotopes.		1.9610
pyrocatechol violet
[no description available]		7.7330
1,7-phenanthroline
[no description available]		3.1750phenanthroline
rubrene
[no description available]		2.2510
fluorodeoxyglucose f18
Fluorodeoxyglucose F18: The compound is given by intravenous injection to do POSITRON-EMISSION TOMOGRAPHY for the assessment of cerebral and myocardial glucose metabolism in various physiological or pathological states including stroke and myocardial ischemia. It is also employed for the detection of malignant tumors including those of the brain, liver, and thyroid gland. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1162)		3.56112-deoxy-2-((18)F)fluoro-D-glucose;
2-deoxy-2-fluoro-aldehydo-D-glucose
enrofloxacin
Enrofloxacin: A fluoroquinolone antibacterial and antimycoplasma agent that is used in veterinary practice.. enrofloxacin : A quinolinemonocarboxylic acid that is 1,4-dihydroquinoline-3-carboxylic acid substituted by an oxo group at position 4, a fluoro group at position 6, a cyclopropyl group at position 1 and a 4-ethylpiperazin-1-yl group at position 7. It is a veterinary antibacterial agent used for the treatment of pets.		2.6120cyclopropanes;
N-alkylpiperazine;
N-arylpiperazine;
organofluorine compound;
quinolinemonocarboxylic acid;
quinolone		antibacterial agent;
antimicrobial agent;
antineoplastic agent
tocophersolan
tocophersolan: RN given refers to parent cpd		2.1110tocol
indenolol
indenolol: RN given refers to parent cpd without isomeric designation; structure		2.0510
ubenimex
ubenimex: growth inhibitor		210
5-nitro-1,10-phenanthroline
5-nitro-1,10-phenanthroline: structure in first source		7.0810
ceric oxide
ceric oxide: RN given refers to cpd with MF CeO2. ceric oxide : A metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis.		2.9940cerium molecular entity;
metal oxide
sodium oxide
[no description available]		2.0310
triphenylmethylphosphonium
triphenylmethylphosphonium: RN given refers to parent cpd		1.9710
2-aminoethylmethacrylate
aminoethyl methacrylate: cell-adhesive dextran hydrogel		2.1110enoate ester
azidotrimethylsilane
azidotrimethylsilane: structure in first source		210
n-hydroxysuccinimide
N-hydroxysuccinimide: structure		2.1110
n,n-diisopropylethylamine
N,N-diisopropylethylamine: RN given refers to parent cpd		2.610tertiary amino compound
strontium titanium oxide
[no description available]		2.1110
lanthanum trifluoride
lanthanum trifluoride: sputtered LaF3 film is used as a new MOS-type glucose sensor; RN given refers to cpd LaF3		2.7530
ytterbium fluoride
[no description available]		6.2172
cobalt-ethylenediamine tetraacetic acid chelate
cobalt-ethylenediamine tetraacetic acid chelate: RN given refers to parent cpd; synonym dicobalt edetate refers to di-Na salt		4.2941
1-methyl-3-hydroxypyridine-2-one
[no description available]		2.0510
aluminum nitride
[no description available]		1.9710nitride
cadmium telluride
cadmium telluride: used in radiation monitoring device		2.1110
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.		8.5990cobalt group element atom;
metal allergen		micronutrient
yttrium radioisotopes
Yttrium Radioisotopes: Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.		3.8321
arginyl-glycyl-aspartic acid
arginyl-glycyl-aspartic acid: amino acid sequence of basic unit of widespread cellular recognition system		2.0810oligopeptide
dimyristoylphosphatidylglycerol
[no description available]		2.4220
1,4,7-tris(carboxymethyl)-1,4,7,10-tetraazacyclododecane
1,4,7-tris(carboxymethyl)-1,4,7,10-tetraazacyclododecane: structure in first source		2.110
aluminum phthalocyanine
aluminum phthalocyanine: the aluminum phthalocyanine can be sulfonated to different degrees; see also record for aluminum tetrasulfophthalocyanine		2.1110organic molecular entity
1,2-dimyristoylphosphatidylethanolamine
[no description available]		1.9910
gallium nitride
[no description available]		2.0710
1,4,7,10-tetraazacyclododecane- 1,4,7,10-tetraacetic acid
1,4,7,10-tetraazacyclododecane- 1,4,7,10-tetraacetic acid: structure given in first source. DOTA : An azamacrocyle in which four nitrogen atoms at positions 1, 4, 7 and 10 of a twelve-membered ring are each substituted with a carboxymethyl group.		2.9440azamacrocyclechelator;
copper chelator
dysprosium dtpa
dysprosium DTPA: RN given refers to di-Na salt; RN for parent cpd not available 6/88		1.9910
stannane
[no description available]		2.0610mononuclear parent hydride;
tin hydride
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.		2.2110chlorine oxoanion;
monovalent inorganic anion
1,2-hexanoylphosphatidylcholine
1,2-hexanoylphosphatidylcholine: RN given refers to cpd without isomeric designation		2.0510
1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylenephosphonic acid)
1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylenephosphonic acid): a bone-seeking radiopharmaceutical; has been complexed with gadolinium (see Gd-DOTP) and holmium		2.4420
methotrexate
[no description available]		1.9510dicarboxylic 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
lanthanum hydroxide
lanthanum hydroxide: RN given refers to unspecified lanthanum hydroxide		2.1110
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.		2.0510beta-lactam antibiotic allergen;
beta-lactam
sperm motility inhibitor 2
[no description available]		2.0310
proline
Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2.		2.110amino acid zwitterion;
glutamine family amino acid;
L-alpha-amino acid;
proline;
proteinogenic amino acid		algal metabolite;
compatible osmolytes;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite
levofloxacin
Levofloxacin: The L-isomer of Ofloxacin.. levofloxacin : An optically active form of ofloxacin having (S)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase.		2.17109-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;
fluoroquinolone antibiotic;
quinolone antibiotic		antibacterial drug;
DNA synthesis inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
topoisomerase IV inhibitor
hydroxyl radical
Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent.		2.1110oxygen hydride;
oxygen radical;
reactive oxygen species
gallium oxide
gallium oxide: RN given refers to unlabeled cpd		2.0310
edotreotide
Edotreotide: DOTA - 1,4,7,10-tetraazacyclododecanetetracetic acid; structure given in first source; may be labelled with various radioisotopes		3.3811
yttria
yttria: molecular formula Y2-O3		3.87110
gadolinium oxide
gadolinium oxide: RN given refers to cpd with MF of Gd2-O3		3.3560
gadolinium sulfoxylate
gadolinium sulfoxylate: used in radiation-protective screen; structure		2.0710
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.		3.0540chalcogen;
monoatomic oxygen;
nonmetal atom		macronutrient
fenton's reagent
Fenton's reagent: used for oxidizing sugars & alcohols		2.1710
carbazomycin b
carbazomycin B: from Streptomyces Strain H 1051-MY 10; structure not given in first source, but MF given as C15-H15-N-O2; structure contains hydroxy-methoxy-dimethylcarbazole		2.1710
technetium tc 99m pentetate
Technetium Tc 99m Pentetate: A technetium imaging agent used in renal scintigraphy, computed tomography, lung ventilation imaging, gastrointestinal scintigraphy, and many other procedures which employ radionuclide imaging agents.		3.9850
diethylenetriaminetetraacetic acid
diethylenetriaminetetraacetic acid: structure given in first source		2.0110
ytterbium dtpa
ytterbium DTPA: used in computer tomography; has higher K-edge than iodine		2.6830
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.		2.7330biotins;
vitamin B7		coenzyme;
cofactor;
Escherichia coli metabolite;
fundamental metabolite;
human metabolite;
mouse metabolite;
nutraceutical;
prosthetic group;
Saccharomyces cerevisiae metabolite
angiotensin ii
Giapreza: injectable form of angiotensin II used to increase blood pressure in adult patients with septic or other distributive shock. Ile(5)-angiotensin II : An angiotensin II that acts on the central nervous system (PDB entry: 1N9V).		2.6630amino acid zwitterion;
angiotensin II		human metabolite
carbazomycin a
carbazomycin A: from Streptomyces Strain H 1051-MY 10; structure not given in first source, but MF given as C16-H17-N-O2; structure contains dimethoxy-dimethylcarbazole moiety		2.1710
organophosphonates
hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid.		2.7330divalent inorganic anion;
phosphite ion
sodium percarbonate
[no description available]		2.0710
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.		2.1310aflatoxin;
aromatic ether;
aromatic ketone		carcinogenic agent;
human metabolite
prizes
acetamiprid: structure in first source. (E)-acetamiprid : The (E)-stereoisomer of acetamiprid.. acetamiprid : A carboxamidine that is acetamidine in which the amino hydrogens are substituted by a (6-chloropyridin-3-yl)methyl and a methyl group while the hydrogen attached to the imino nitrogen is replaced by a cyano group.		2.1310carboxamidine;
monochloropyridine;
nitrile		environmental contaminant;
neonicotinoid insectide;
xenobiotic
sorafenib
[no description available]		2.1310(trifluoromethyl)benzenes;
aromatic ether;
monochlorobenzenes;
phenylureas;
pyridinecarboxamide		angiogenesis inhibitor;
anticoronaviral agent;
antineoplastic agent;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
ferroptosis inducer;
tyrosine kinase inhibitor
lithium fluoride
lithium fluoride: RN given refers to cpd with MF of Li-F; GR200-A is LiF activated by Mg, Cu, and P		2.110
5-hydroxymethylfurfural
5-hydroxymethylfurfural: has antisickling activity; HMF is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo. 5-hydroxymethylfurfural : A member of the class of furans that is furan which is substituted at positions 2 and 5 by formyl and hydroxymethyl substituents, respectively. Virtually absent from fresh foods, it is naturally generated in sugar-containing foods during storage, and especially by drying or cooking. It is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo.		3.5611arenecarbaldehyde;
furans;
primary alcohol		indicator;
Maillard reaction product
2-oxindole
2-oxindole: RN given refers to parent cpd; structure. indolin-2-one : An indolinone carrying an oxo group at position 2.		2.0710gamma-lactam;
indolinone
6-hydroxyquinolinic acid
6-hydroxyquinolinic acid: structure in first source		2.0510
arabinose
[no description available]		210L-arabinoseEscherichia coli metabolite;
mouse metabolite
fructans
(2->6)-beta-D-fructan : A fructan compound consisting of repeating (2->6)-beta-linked fructofuranose units.		1.9610
metrizamide
Metrizamide: A solute for density gradient centrifugation offering higher maximum solution density without the problems of increased viscosity. It is also used as a resorbable, non-ionic contrast medium.		1.9510amino sugar
betadex
beta-Cyclodextrins: Cyclic GLUCANS consisting of seven (7) glucopyranose units linked by 1,4-glycosidic bonds.		3.930cyclodextrin
alpha-cyclodextrin
alpha-cyclodextrin : A cycloamylose composed of six alpha-(1->4) linked D-glucopyranose units.		2.5220cyclodextrin
cyanoginosin lr
cyanoginosin LR: cyclic heptapeptide from cyanobacterium Microcystis aeruginosa. microcystin-LR : A microcystin consisting of D-alanyl, L-leucyl, (3S)-3-methyl-D-beta-aspartyl,L-arginyl, 2S,3S,4E,6E,8S,9S)-3-amino-4,5,6,7-tetradehydro-9-methoxy-2,6,8-trimethyl-10-phenyldecanoyl, D-gamma-glutamyl, and 2,3-didehydro-N-methylalanyl residues joined into a 25-membered macrocycle. Produced by the cyanobacterium Microcystis aeruginosa, it is the most studied of the microcystins.		2.1510microcystinbacterial metabolite;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
environmental contaminant;
xenobiotic
oleic acid
Oleic Acid: An unsaturated fatty acid that is the most widely distributed and abundant fatty acid in nature. It is used commercially in the preparation of oleates and lotions, and as a pharmaceutical solvent. (Stedman, 26th ed). oleic acid : An octadec-9-enoic acid in which the double bond at C-9 has Z (cis) stereochemistry.		3.3460octadec-9-enoic acidantioxidant;
Daphnia galeata metabolite;
EC 3.1.1.1 (carboxylesterase) inhibitor;
Escherichia coli metabolite;
mouse metabolite;
plant metabolite;
solvent
sodium bicarbonate
Sodium Bicarbonate: A white, crystalline powder that is commonly used as a pH buffering agent, an electrolyte replenisher, systemic alkalizer and in topical cleansing solutions.		2.0410one-carbon compound;
organic sodium salt		antacid;
food anticaking agent
zn(ii)-phthalocyanine
[no description available]		2.5520metallophthalocyanine;
zinc tetrapyrrole		fluorochrome
oxazolidine
oxazolidine: structure given in first source		2.0610oxazolidine
calix(4)arene
calix(4)arene: a cyclophane consisting of four phenolic units linked by methylene groups; structure in first source		2.0310
glycosides
[no description available]		2.0210
stilbenes
Stilbenes: Organic compounds that contain 1,2-diphenylethylene as a functional group.. trans-stilbene : The trans-isomer of stilbene.		2.0710stilbene
pyrophosphate
Diphosphates: Inorganic salts of phosphoric acid that contain two phosphate groups.		1.9510diphosphate ion
D-fructopyranose
[no description available]		2.4110cyclic hemiketal;
D-fructose;
fructopyranose		sweetening agent
ferric ferrocyanide
ferric ferrocyanide: antidote to thallium poisoning; RN given refers to Fe(+3)[3:4] salt; structure		2.3110
meso-1,2-diphenylethylenediamine, (r-(r*,s*))-isomer
diphenylethylenediamine: structure in first source		3.5611
ytterbium(iii) triflate
[no description available]		7.610
fumonisin b1
fumonisin B1: isolated from Fusarium moniliforme MRC 826; structure given in first source; has cancer-promoting activity; inhibits ceramide synthase. fumonisin B1 : A diester that results from the condensation of the 1-carboxy groups of two molecules of propane-1,2,3-tricarboxylic acid with hydroxy groups at positions 14 and 15 of (2S,3S,5R,10R,12S,14S,15R,16R)-2-amino-12,16-dimethylicosane-3,5,10,14,15-pentol.		2.0810diester;
fumonisin;
primary amino compound;
triol		carcinogenic agent;
metabolite
monastrol
monastrol: stops mitosis by fostering formation of monopolar spindles; structure in first source. (S)-monastrol : An ethyl 4-(3-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate that has S configuration.. monastrol : A racemate comprising equimolar amounts of R- and S-monastrol.. ethyl 4-(3-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate : A member of the class of thioureas that is 3,4-dihydropyrimidine-2(1)-thione substituted by a 3-hydroxyphenyl group at position 4, an ethoxycarbonyl group at position 5, and a methyl group at position 6.		2.0210enoate ester;
ethyl ester;
phenols;
racemate;
thioureas		antileishmanial agent;
antimitotic;
antineoplastic agent;
EC 3.5.1.5 (urease) inhibitor
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.		4.13150alkali metal atom
cyclic 3',5'-uridine monophosphate
3',5'-cyclic UMP : A 3',5'-cyclic pyrimidine nucleotide having uridine as the nucleobase.		1.97103',5'-cyclic pyrimidine nucleotidebacterial metabolite;
mammalian metabolite;
signalling molecule
calixarenes
Calixarenes: Phenolic metacyclophanes derived from condensation of PHENOLS and ALDEHYDES. The name derives from the vase-like molecular structures. A bracketed [n] indicates the number of aromatic rings.. calixarenes : Originally macrocyclic compounds capable of assuming a basket (or "calix") shaped conformation. They are formed from p-hydrocarbyl phenols and formaldehyde. The term now applies to a variety of derivatives by substitution of the hydrocarbon cyclo{oligo[(1,3-phenylene)methylene]}.. calixarene : A macrocycle composed of 1,3-phenylene groups linked by methylene groups. The number of 1,3-phenylene units in the macrocycle is denoted by the "n" in calix[n]arene name.		2.4820
metanil yellow
metanil yellow: RN given refers to parent cpd; structure. metanil yellow : An organic sodium salt having 3-[(4-anilinophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used in one variant of Masson's trichrome to stain collagen yellow in contrast to the red muscle, but is not in common used.		2.1110organic sodium salthistological dye
4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione
4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione: a GSK3beta inhibitor. TDZD-8 : A member of the class of thiadiazolidines that is 1,2,4-thiadiazolidine-3,5-dione which is substituted by a methyl group at position 2 and by a benzyl group at position 4. It is a non-ATP competitive inhibitor of glycogen synthase kinase 3beta (GSK3beta). An experimental compound which was being developed for the potential treatment of Alzheimer's disease.		3.5611benzenes;
thiadiazolidine		anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.26 (tau-protein kinase) inhibitor;
neuroprotective agent
erbium oxide
[no description available]		2.0410
leukotriene a4
Leukotriene A4: (2S-(2 alpha,3 beta(1E,3E,5Z,8Z)))-3-(1,3,5,8-Tetradecatetraenyl)oxiranebutanoic acid. An unstable allylic epoxide, formed from the immediate precursor 5-HPETE via the stereospecific removal of a proton at C-10 and dehydration. Its biological actions are determined primarily by its metabolites, i.e., LEUKOTRIENE B4 and cysteinyl-leukotrienes. Alternatively, leukotriene A4 is converted into LEUKOTRIENE C4 by glutathione-S-transferase or into 5,6-di-HETE by the epoxide-hydrolase. (From Dictionary of Prostaglandins and Related Compounds, 1990). leukotriene A4 : A leukotriene that is the (5S,6S)-epoxy derivative of (7E,9E,11Z,14Z)-icosa-7,9,11,14-tetraenoic acid.		210epoxy fatty acid;
leukotriene;
long-chain fatty acid;
oxylipin;
polyunsaturated fatty acid		human metabolite;
mouse metabolite;
plant 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.		1.9510antibiotic antifungal drug;
macrolide antibiotic;
polyene antibiotic		antiamoebic agent;
antiprotozoal drug;
bacterial metabolite
7-hydroxycoumarin
7-oxycoumarin: derivatives have anti-oxidant properties. umbelliferone : A hydroxycoumarin that is coumarin substituted by a hydroxy group ay position 7.		2.0410hydroxycoumarinfluorescent probe;
food component;
plant metabolite
coenzyme q10
coenzyme Q10: Ubiquinone ring with a chain of 10 isoprene units; redox equilibrium with ubiqunol serving in mitochondrial inner membrane to transfer electrons; presence during reconstitution of acetylcholine receptor into phospholipid vesicles yields vesicles active in catalyzing carbamylcholine-sensitive Na+ flux; coenzyme Q10 depletion has been noted with use of statins. coenzyme Q10 : A ubiquinone having a side chain of 10 isoprenoid units. In the naturally occurring isomer, all isoprenyl double bonds are in the E- configuration.		3.5611ubiquinonesantioxidant;
ferroptosis inhibitor;
human metabolite
ubiquinone 8
[no description available]		3.5611ubiquinonesbiomarker
menaquinone 6
menaquinone 6: RN given refers to (all-E)-isomer		3.5611
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.		1.9510hydrochloride
iodopyracet
Iodopyracet: An ionic monomeric contrast medium that was formerly used for a variety of diagnostic procedures. (From Martindale, The Extra Pharmacopoeia, 30th ed, p706). diodone : A 4-pyridone in which the pyridone is iodo-substituted at C-3 and -5 and has a carboxymethyl substituent on nitrogen; used as a radiocontrast agent urography.		3.0410
menaquinone 7
menaquinone-7 : A menaquinone whose side-chain contains seven isoprene units in an all-trans-configutation.		3.5611menaquinonebone density conservation agent;
cofactor;
Escherichia coli metabolite;
human blood serum metabolite;
Mycoplasma genitalium metabolite
lysophosphatidylcholines
lysophosphatidylcholine : An acylglycerophosphocholine resulting from partial hydrolysis of a phosphatidylcholine, which removes one of the fatty acyl groups. The structure is depicted in the image where R1 = acyl, R2 = H or where R1 = H, R2 = acyl.		1.96101-O-acyl-sn-glycero-3-phosphocholine
globo-h
alpha-L-Fucp-(1->2)-beta-D-Galp-(1->3)-beta-D-GlcpNAc : An amino trisaccharide consisting of alpha-L-fucose, beta-D-galactose and N-acetyl-beta-D-glucosamine residues joined by sequential (1->2)- and (1->3)-linkages.		2.0210alpha-L-Fucp-(1->2)-beta-D-Galp-(1->3)-D-GlcpNAcepitope
fosbretabulin
fosbretabulin: a microtubule destabilizing agent isolated from Combretum caffrum; structure in first source		2.0710
lead
Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.		3.88120carbon group element atom;
elemental lead;
metal atom		neurotoxin
tin
[no description available]		3.0750carbon group element atom;
elemental tin;
metal atom		micronutrient
cesium
Cesium: A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency.		3.1250alkali metal atom
barium
Barium: An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.		5.36131alkaline earth metal atom;
elemental barium
rubidium
Rubidium: An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.		3.2260alkali metal atom
aluminum
Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98.		4.5230boron 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.		5.13101alkaline earth metal atom
bismuth
Bismuth: A metallic element that has the atomic symbol Bi, and atomic number 83. Its principal isotope is Bismuth 209.		9.53230metal atom;
pnictogen
thallium
Thallium: A heavy, bluish white metal, atomic number 81, atomic weight [204.382; 204.385], symbol Tl.. thallium : A metallic element first identified and named from the brilliant green line in its flame spectrum (from Greek thetaalphalambdalambdaomicronsigma, a green shoot).		1.9610boron group element 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)		8.9840metalloid atom;
pnictogen		micronutrient
indium
Indium: A metallic element, atomic number 49, atomic weight 114.818, symbol In. It is named from its blue line in the spectrum.. indium atom : A metallic element first identified and named from the brilliant indigo (Latin indicum) blue line in its flame spectrum.		7.63440boron group element atom
lasalocid
Lasalocid: Cationic ionophore antibiotic obtained from Streptomyces lasaliensis that, among other effects, dissociates the calcium fluxes in muscle fibers. It is used as a coccidiostat, especially in poultry.. lasalocid : A polyether antibiotic used for prevention and treatment of coccidiosis in poultry.		1.9610beta-hydroxy ketone;
monocarboxylic acid;
monohydroxybenzoic acid;
oxanes;
oxolanes;
polyether antibiotic;
secondary alcohol;
tertiary alcohol		bacterial metabolite;
coccidiostat;
ionophore
gallium
Gallium: A rare, metallic element designated by the symbol, Ga, atomic number 31, and atomic weight 69.72.. gallium atom : A metallic element predicted as eka-aluminium by Mendeleev in 1870 and discovered by Paul-Emile Lecoq de Boisbaudran in 1875. Named in honour of France (Latin Gallia) and perhaps also from the Latin gallus cock, a translation of Lecoq.		5.33180boron group element atom
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.		2.0510chalcogen;
nonmetal atom		macronutrient
dimyristoylphosphatidylcholine
1,2-di-O-myristoyl-sn-glycero-3-phosphocholine : A 1,2-diacyl-sn-glycero-3-phosphocholine where the two phosphatidyl acyl groups are specified as tetradecanoyl (myristoyl).. dimyristoyl phosphatidylcholine : A phosphatidylcholine where the phosphatidyl acyl groups are specified as tetradecanoyl (myristoyl).		2.93401,2-diacyl-sn-glycero-3-phosphocholine;
phosphatidylcholine 28:0;
tetradecanoate ester		antigen;
mouse metabolite
beryllium
Beryllium: An element with the atomic symbol Be, atomic number 4, and atomic weight 9.01218. Short exposure to this element can lead to a type of poisoning known as BERYLLIOSIS.. beryllium atom : Alkaline earth metal atom with atomic number 4.		7.6830alkaline earth metal atom;
elemental beryllium;
metal allergen		adjuvant;
carcinogenic agent;
epitope
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.		2.8330cysteiniumfundamental 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].		4.3241carbon group element atom;
metalloid atom;
nonmetal atom
phosphorus
Phosphorus: A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.		3.1550monoatomic phosphorus;
nonmetal atom;
pnictogen		macronutrient
phytochlorin
phytochlorin: RN given refers to (2S-trans)-isomer; structure given in the first source		2.2510
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.		3.67100
caesium-137
[no description available]		2.2110caesium atom
triolein
Triolein: (Z)-9-Octadecenoic acid 1,2,3-propanetriyl ester.. triolein : A triglyceride formed by esterification of the three hydroxy groups of glycerol with oleic acid. Triolein is one of the two components of Lorenzo's oil.		1.9510triglycerideCaenorhabditis elegans metabolite;
plant metabolite
barium titanate(iv)
barium titanate(IV): RN given refers to parent cpd		2.7930
germanium
Germanium: A rare metal element with a blue-gray appearance and atomic symbol Ge, atomic number 32, and atomic weight 72.63.		4.31180carbon group element atom;
metalloid atom;
nonmetal atom
selenium
Selenium: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE.		3.2260chalcogen;
nonmetal atom		micronutrient
tellurium
Tellurium: An element that is a member of the chalcogen family. It has the atomic symbol Te, atomic number 52, and atomic weight 127.60. It has been used as a coloring agent and in the manufacture of electrical equipment. Exposure may cause nausea, vomiting, and CNS depression.		4.85320chalcogen;
metalloid atom
bismuth germanium oxide
bismuth germanium oxide: used in positron emission tomography; RN given refers to cpd with MF Bi4-Ge3-O12		2.4620
gadolinium dtpa
Gadolinium DTPA: A complex of gadolinium with a chelating agent, diethylenetriamine penta-acetic acid (DTPA see PENTETIC ACID), that is given to enhance the image in cranial and spinal MRIs. (From Martindale, The Extra Pharmacopoeia, 30th ed, p706)		2.9140gadolinium coordination entityMRI contrast agent
carboxyl radical
[no description available]		2.0210carbon oxide;
organic radical anion		xenobiotic metabolite
ytterbium trichloride
ytterbium trichloride: RN given refers to unlabeled cpd. ytterbium(III) chloride : The trichloride salt of ytterbium(III).		5.26121inorganic chlorideNMR shift reagent
zeolites
[no description available]		2.2510
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.		4.01130
fluorapatite
fluorapatite: RN refers to fluorapatite [Ca5F(PO4)3]). apatite : A phosphate mineral with the general formula Ca5(PO4)3X where X = OH, F or Cl.. fluorapatite : A phosphate mineral with the formula Ca5(PO4)3F.		2.5120
apremilast
[no description available]		3.5611aromatic ether;
N-acetylarylamine;
phthalimides;
sulfone		non-steroidal anti-inflammatory drug;
phosphodiesterase IV inhibitor
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.		3.5611
n-acetylmannosamine
N-acetylmannosamine: RN given refers to cpd without isomeric designation. N-acetylmannosamine : Any mannosamine carrying an N-acetyl substituent		3.5611
indocyanine green
Indocyanine Green: A tricarbocyanine dye that is used diagnostically in liver function tests and to determine blood volume and cardiac output.		1.95101,1-diunsubstituted alkanesulfonate;
benzoindole;
cyanine dye
nad
NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety.		2.110organophosphate oxoanioncofactor;
human metabolite;
hydrogen acceptor;
Saccharomyces cerevisiae metabolite
cytochrome c-t
Cytochromes c: Cytochromes of the c type that are found in eukaryotic MITOCHONDRIA. They serve as redox intermediates that accept electrons from MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III and transfer them to MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV.		2.1110
glucagon
Glucagon: A 29-amino acid pancreatic peptide derived from proglucagon which is also the precursor of intestinal GLUCAGON-LIKE PEPTIDES. Glucagon is secreted by PANCREATIC ALPHA CELLS and plays an important role in regulation of BLOOD GLUCOSE concentration, ketone metabolism, and several other biochemical and physiological processes. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1511). glucagon : A 29-amino acid peptide hormone consisting of His, Ser, Gln, Gly, Thr, Phe, Thr, Ser, Asp, Tyr, Ser, Lys, Tyr, Leu, Asp, Ser, Arg, Arg, Ala, Gln, Asp, Phe, Val, Gln, Trp, Leu, Met, Asn and Thr residues joined in sequence.		1.9510peptide hormone
cucurbit(8)uril
cucurbit(8)uril: a macrocyclic polymer compound comprising 8 GLYCOLURIL units with methylene bridges		2.2510
tannins
Tannins: Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing.		3.5611
oligonucleotides
[no description available]		2.1310
cellulose
DEAE-Cellulose: Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications.		2.7430glycoside
perovskite
calcium titanate : A calcium salt with the formula CaTiO3, generally obtained in the form of the mineral perovskite.		2.4920
phosphatidylcholines
Phosphatidylcholines: Derivatives of PHOSPHATIDIC ACIDS in which the phosphoric acid is bound in ester linkage to a CHOLINE moiety.		2.88401,2-diacyl-sn-glycero-3-phosphocholine
ubiquinone
Ubiquinone: A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals.		3.5611
chitosan
[no description available]		2.8130
lithium niobate
[no description available]		8.2960
ethyl cellulose
[no description available]		2.0610glycoside
4,4-difluoro-4-bora-3a,4a-diaza-s-indacene
[no description available]		2.4820BODIPY compound
glycolipids
[no description available]		3.5611
beta-sultam
beta-sultam: structure in first source		2.0510
piperidines
Piperidines: A family of hexahydropyridines.		2.0510
chondroitin
Chondroitin: A mucopolysaccharide constituent of chondrin. (Grant & Hackh's Chemical Dictionary, 5th ed)		6.9610
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.		2.940ascorbic acid;
vitamin C		coenzyme;
cofactor;
flour treatment agent;
food antioxidant;
food colour retention agent;
geroprotector;
plant metabolite;
skin lightening agent
oxytetracycline, anhydrous
Oxytetracycline: A TETRACYCLINE analog isolated from the actinomycete STREPTOMYCES RIMOSUS and used in a wide variety of clinical conditions.. oxytetracycline : A tetracycline used for treatment of infections caused by a variety of Gram positive and Gram negative microorganisms including Mycoplasma pneumoniae, Pasteurella pestis, Escherichia coli, Haemophilus influenzae (respiratory infections), and Diplococcus pneumoniae.		2.1110
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.		2.1110monohydroxybenzoateplant metabolite
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.		2.0310benzenes;
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.		1.9710
gluma
Gluma: bonding agent; aqueous solution of hydroxyethylmethacrylate & glutaral		3.3711
sybr green i
SYBR Green I: binds to double stranded DNA of less than 20 pg following agarose or polyacrylamide gel electrophoresis; excited at 497 nm and emits at 520 nm. SYBR Green I : A benzothiazolium ion resulting from the methylation of the nitrogen of the benzothiazole group of N-[4-(1,3-benzothiazol-2-ylmethylene)-1-phenyl-1,4-dihydroquinolin-2-yl]-N',N'-dimethyl-N-propylpropane-1,3-diamine. A cationic unsymmetrical cyanine dye that binds to double-stranded DNA and is used as a nucleic acid stain in molecular biology.		2.1110benzothiazolium ion;
cyanine dye;
quinolines;
tertiary amine		fluorescent dye
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.		3.4920
roussin's black salt
Roussin's Black Salt: structure given in first source; a nitric oxide generator		2.0710
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.		2.7230
lutetium lu 177 dotatate
177Lu-DOTA-octreotate: an somatostatin receptor agonist		2.0510
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.		1.9610
exudates
Malaysia: A parliamentary democracy with a constitutional monarch in southeast Asia, consisting of 11 states (West Malaysia) on the Malay Peninsula and two states (East Malaysia) on the island of BORNEO. It is also called the Federation of Malaysia. Its capital is Kuala Lumpur. Before 1963 it was the Union of Malaya. It reorganized in 1948 as the Federation of Malaya, becoming independent from British Malaya in 1957 and becoming Malaysia in 1963 as a federation of Malaya, Sabah, Sarawak, and Singapore (which seceded in 1965). The form Malay- probably derives from the Tamil malay, mountain, with reference to its geography. (From Webster's New Geographical Dictionary, 1988, p715 & Room, Brewer's Dictionary of Names, 1992, p329)		2.1310
guanine
[no description available]		3.56112-aminopurines;
oxopurine;
purine nucleobase		algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae 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.		3.0740folic acids;
N-acyl-amino acid		human metabolite;
mouse metabolite;
nutrient
trypan blue
Trypan Blue: A diazo-naphthalene sulfonate that is widely used as a stain.. trypan blue : An organosulfonate salt that is the tetrasodium salt of 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonic acid).		2.0610
8-hydroxy-2'-deoxyguanosine
8-Hydroxy-2'-Deoxyguanosine: Common oxidized form of deoxyguanosine in which C-8 position of guanine base has a carbonyl group.. 8-hydroxy-2'-deoxyguanosine : Guanosine substituted at the purine 8-position by a hydroxy group. It is used as a biomarker of oxidative DNA damage.		2.2510guanosinesbiomarker
eye
[no description available]		9.2941
chaetomanone
chaetomanone: antimycobacterial anthraquinone-chromanone compound from the fungus Chaetomium globosum KMITL-N0802; structure in first source		2.0310
concanavalin a
Concanavalin A: A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures.		1.9510
phosphorus radioisotopes
Phosphorus Radioisotopes: Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes.		2.4120
thrombin aptamer
thrombin aptamer: nucleotide sequence given in first source; a synthetic polynucleotide		2.0810
pyrimidinones
Pyrimidinones: Heterocyclic compounds known as 2-pyrimidones (or 2-hydroxypyrimidines) and 4-pyrimidones (or 4-hydroxypyrimidines) with the general formula C4H4N2O.		210
ConditionIndicatedRelationship StrengthStudiesTrials
Encephalopathy, Toxic
[description not available]		02.3110
Bacillus anthracis Infection
[description not available]		02.3110
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.		02.3110
Benign Neoplasms
[description not available]		04.78310
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.		04.78310
2019 Novel Coronavirus Disease
[description not available]		02.3110
Experimental Neoplasms
[description not available]		03.76110
Acute Liver Injury, Drug-Induced
[description not available]		02.3820
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.		02.3820
Delayed Effects, Prenatal Exposure
[description not available]		02.4920
Pregnancy
The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.		07.58189
Cancer of Prostate
[description not available]		04.1860
Prostatic Neoplasms
Tumors or cancer of the PROSTATE.		04.1860
ER-Negative PR-Negative HER2-Negative Breast Cancer
[description not available]		02.2510
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.		02.2510
Cancer of Cervix
[description not available]		02.9340
Uterine Cervical Neoplasms
Tumors or cancer of the UTERINE CERVIX.		02.9340
Experimental Mammary Neoplasms
[description not available]		03.3870
Infections, Staphylococcal
[description not available]		02.2510
Staphylococcal Infections
Infections with bacteria of the genus STAPHYLOCOCCUS.		02.2510
Breast Cancer
[description not available]		03.6290
Breast Neoplasms
Tumors or cancer of the human BREAST.		03.6290
Animal Mammary Carcinoma
[description not available]		02.2510
Acute Confusional Senile Dementia
[description not available]		02.3920
Alzheimer Disease
A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57)		02.3920
Chronic Illness
[description not available]		05.14111
Adult Periodontitis
[description not available]		03.5611
Familial Nonmedullary Thyroid Cancer
[description not available]		03.5611
Affective Psychosis, Bipolar
[description not available]		03.5611
Arteriosclerosis, Coronary
[description not available]		03.5611
Health Care Associated Infection
[description not available]		03.5611
Diabetes Mellitus, Adult-Onset
[description not available]		03.8121
Intertrochanteric Fractures
[description not available]		03.5611
Hypercapnia
A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.		03.5611
Blood Pressure, High
[description not available]		06.0684
Insulin Sensitivity
[description not available]		03.5611
Disease, Pulmonary
[description not available]		04.2741
Cells, Neoplasm Circulating
[description not available]		03.5611
Polycystic Ovarian Syndrome
[description not available]		03.5611
Palmoplantaris Pustulosis
[description not available]		03.5611
Ankylosing Spondylarthritis
[description not available]		03.5611
Cancer of the Thyroid
[description not available]		03.7821
Alveolar Bone Atrophy
[description not available]		03.5611
Diabetes Mellitus, Gestational
[description not available]		03.5611
Bacterial Infections, Gram-Negative
[description not available]		03.5611
Local Neoplasm Recurrence
[description not available]		03.5611
Acute Disease
Disease having a short and relatively severe course.		04.0631
Anovulation
Suspension or cessation of OVULATION in animals or humans with follicle-containing ovaries (OVARIAN FOLLICLE). Depending on the etiology, OVULATION may be induced with appropriate therapy.		03.5611
Bipolar Disorder
A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.		03.5611
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).		05.14111
Coronary Artery Disease
Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.		03.5611
Cross Infection
Any infection which a patient contracts in a health-care institution.		03.5611
Diabetes Mellitus
A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.		03.7721
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.		03.8121
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)		04.2841
Hip Fractures
Fractures of the FEMUR HEAD; the FEMUR NECK; (FEMORAL NECK FRACTURES); the trochanters; or the inter- or subtrochanteric region. Excludes fractures of the acetabulum and fractures of the femoral shaft below the subtrochanteric region (FEMORAL FRACTURES).		03.5611
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.		06.0684
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.		03.5611
Lung Diseases
Pathological processes involving any part of the LUNG.		04.2741
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).		03.5611
Polycystic Ovary Syndrome
A complex disorder characterized by infertility, HIRSUTISM; OBESITY; and various menstrual disturbances such as OLIGOMENORRHEA; AMENORRHEA; ANOVULATION. Polycystic ovary syndrome is usually associated with bilateral enlarged ovaries studded with atretic follicles, not with cysts. The term, polycystic ovary, is misleading.		03.5611
Psoriasis
A common genetically determined, chronic, inflammatory skin disease characterized by rounded erythematous, dry, scaling patches. The lesions have a predilection for nails, scalp, genitalia, extensor surfaces, and the lumbosacral region. Accelerated epidermopoiesis is considered to be the fundamental pathologic feature in psoriasis.		03.5611
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)		06.1281
Spondylitis, Ankylosing
A chronic inflammatory condition affecting the axial joints, such as the SACROILIAC JOINT and other intervertebral or costovertebral joints. It occurs predominantly in young males and is characterized by pain and stiffness of joints (ANKYLOSIS) with inflammation at tendon insertions.		03.5611
Thyroid Neoplasms
Tumors or cancer of the THYROID GLAND.		03.7821
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.		03.7821
Diabetes, Gestational
Diabetes mellitus induced by PREGNANCY but resolved at the end of pregnancy. It does not include previously diagnosed diabetics who become pregnant (PREGNANCY IN DIABETICS). Gestational diabetes usually develops in late pregnancy when insulin antagonistic hormones peaks leading to INSULIN RESISTANCE; GLUCOSE INTOLERANCE; and HYPERGLYCEMIA.		03.5611
Gram-Negative Bacterial Infections
Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method.		03.5611
Bladder Cancer
[description not available]		02.2110
Urinary Bladder Neoplasms
Tumors or cancer of the URINARY BLADDER.		02.2110
EHS Tumor
[description not available]		03.2260
Cancer of Rectum
[description not available]		02.2110
Rectal Neoplasms
Tumors or cancer of the RECTUM.		02.2110
Disease Models, Animal
Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.		02.6730
Cancer of Stomach
[description not available]		02.7330
Stomach Neoplasms
Tumors or cancer of the STOMACH.		02.7330
Malignant Melanoma
[description not available]		02.6930
Melanoma
A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445)		02.6930
Carcinoma, Non-Small Cell Lung
[description not available]		02.0810
Cancer of Lung
[description not available]		04.09160
Carcinoma, Non-Small-Cell Lung
A heterogeneous aggregate of at least three distinct histological types of lung cancer, including SQUAMOUS CELL CARCINOMA; ADENOCARCINOMA; and LARGE CELL CARCINOMA. They are dealt with collectively because of their shared treatment strategy.		02.0810
Lung Neoplasms
Tumors or cancer of the LUNG.		04.09160
Injuries, Spinal Cord
[description not available]		02.3920
Spinal Cord Injuries
Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.).		02.3920
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.		02.1110
Lymph Node Metastasis
[description not available]		02.1110
Lichen Ruber Planus
[description not available]		02.1110
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.		07.1110
Lichen Planus
An inflammatory, pruritic disease of the skin and mucous membranes, which can be either generalized or localized. It is characterized by distinctive purplish, flat-topped papules having a predilection for the trunk and flexor surfaces. The lesions may be discrete or coalesce to form plaques. Histologically, there is a saw-tooth pattern of epidermal hyperplasia and vacuolar alteration of the basal layer of the epidermis along with an intense upper dermal inflammatory infiltrate composed predominantly of T-cells. Etiology is unknown.		02.1110
Cancer of Colon
[description not available]		02.3920
Colorectal Cancer
[description not available]		02.4220
Colonic Neoplasms
Tumors or cancer of the COLON.		02.3920
Colorectal Neoplasms
Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.		02.4220
Ebola Hemorrhagic Fever
[description not available]		02.1310
Hemorrhagic Fever, Ebola
A highly fatal, acute hemorrhagic fever caused by EBOLAVIRUS.		02.1310
Chronic Lung Injury
[description not available]		02.1310
Breathlessness
[description not available]		02.1310
Hepatocellular Carcinoma
[description not available]		02.940
Cirrhosis, Liver
[description not available]		02.1310
Cancer of Liver
[description not available]		03.3570
Dyspnea
Difficult or labored breathing.		02.1310
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.		02.940
Liver Cirrhosis
Liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules.		02.1310
Liver Neoplasms
Tumors or cancer of the LIVER.		03.3570
Bone Cancer
[description not available]		03.3570
Ache
[description not available]		02.4620
Bone Neoplasms
Tumors or cancer located in bone tissue or specific BONES.		03.3570
Pain
An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS.		02.4620
Auricular Fibrillation
[description not available]		02.0510
Atrial Fibrillation
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.		02.0510
Emergencies
Situations or conditions requiring immediate intervention to avoid serious adverse results.		02.0610
Jaw, Edentulous
The total absence of teeth from either the mandible or the maxilla, but not both. Total absence of teeth from both is MOUTH, EDENTULOUS. Partial absence of teeth in either is JAW, EDENTULOUS, PARTIALLY.		03.4611
Demineralization, Tooth
[description not available]		02.0710
Astrocytoma, Grade IV
[description not available]		03.8221
Angiogenesis, Pathologic
[description not available]		02.0810
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.		03.8221
Extravasation of Contrast Media
[description not available]		02.0110
Carcinoma, Epidermoid
[description not available]		03.3470
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)		03.3470
Hepatitis, Infectious
[description not available]		01.9310
Hepatitis
INFLAMMATION of the LIVER.		01.9310
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.		01.9310
Metastase
[description not available]		04.7271
Neoplasm Metastasis
The transfer of a neoplasm from one organ or part of the body to another remote from the primary site.		04.7271
B-Cell Lymphoma
[description not available]		02.0310
Lymphoma, B-Cell
A group of heterogeneous lymphoid tumors generally expressing one or more B-cell antigens or representing malignant transformations of B-lymphocytes.		02.0310
Osteoarthritis of Knee
[description not available]		02.0310
Osteoarthritis, Knee
Noninflammatory degenerative disease of the knee joint consisting of three large categories: conditions that block normal synchronous movement, conditions that produce abnormal pathways of motion, and conditions that cause stress concentration resulting in changes to articular cartilage. (Crenshaw, Campbell's Operative Orthopaedics, 8th ed, p2019)		02.0310
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.		03.4680
Experimental Hepatoma
[description not available]		02.6530
Reticulum Cell-Like Sarcoma, Yoshida
[description not available]		03.66100
Brain Swelling
[description not available]		03.7721
Acute Brain Injuries
[description not available]		01.9610
Brain Edema
Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see HYPOXIA, BRAIN). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of CSF flow (e.g., obstructive HYDROCEPHALUS). (From Childs Nerv Syst 1992 Sep; 8(6):301-6)		03.7721
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.		01.9610
Disc, Herniated
[description not available]		02.3620
Conus Medullaris Syndrome
[description not available]		02.3620
Intervertebral Disc Displacement
An INTERVERTEBRAL DISC in which the NUCLEUS PULPOSUS has protruded through surrounding ANNULUS FIBROSUS. This occurs most frequently in the lower lumbar region.		02.3620
Spinal Stenosis
Narrowing of the spinal canal.		01.9610
Polyarthritis
[description not available]		02.3620
Anasarca
[description not available]		01.9610
Granulomas
[description not available]		01.9610
Arthritis
Acute or chronic inflammation of JOINTS.		02.3620
Edema
Abnormal fluid accumulation in TISSUES or body cavities. Most cases of edema are present under the SKIN in SUBCUTANEOUS TISSUE.		01.9610
Granuloma
A relatively small nodular inflammatory lesion containing grouped mononuclear phagocytes, caused by infectious and noninfectious agents.		01.9610
Craniocerebral Injuries
[description not available]		03.5730
Aqueductal Stenosis
[description not available]		06.3380
Craniocerebral Trauma
Traumatic injuries involving the cranium and intracranial structures (i.e., BRAIN; CRANIAL NERVES; MENINGES; and other structures). Injuries may be classified by whether or not the skull is penetrated (i.e., penetrating vs. nonpenetrating) or whether there is an associated hemorrhage.		03.5730
Arboviral Encephalitis
[description not available]		01.9610
Cerebromeningitis
[description not available]		01.9610
Coronary Heart Disease
[description not available]		02.3720
Edema, Pulmonary
[description not available]		02.3620
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.		02.3720
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.		02.3620
Enlarged Liver
[description not available]		01.9610
Ascites
Accumulation or retention of free fluid within the peritoneal cavity.		03.7621
Leucocythaemia
[description not available]		01.9510
Germinoblastoma
[description not available]		02.3720
Benign Meningeal Neoplasms
[description not available]		02.3620
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)		01.9510
Lymphoma
A general term for various neoplastic diseases of the lymphoid tissue.		02.3720
Meningeal Neoplasms
Benign and malignant neoplastic processes that arise from or secondarily involve the meningeal coverings of the brain and spinal cord.		02.3620
Circulatory Collapse
[description not available]		01.9510
Shock
A pathological condition manifested by failure to perfuse or oxygenate vital organs.		01.9510
Cancer of Head
[description not available]		02.3720
Granuloma, Hodgkin
[description not available]		02.3720
Diffuse Mixed Small and Large Cell Lymphoma
[description not available]		02.3620
Cancer of Pelvis
[description not available]		01.9810
Abdominal Neoplasms
New abnormal growth of tissue in the ABDOMEN.		02.3720
Head and Neck Neoplasms
Soft tissue tumors or cancer arising from the mucosal surfaces of the LIP; oral cavity; PHARYNX; LARYNX; and cervical esophagus. Other sites included are the NOSE and PARANASAL SINUSES; SALIVARY GLANDS; THYROID GLAND and PARATHYROID GLANDS; and MELANOMA and non-melanoma skin cancers of the head and neck. (from Holland et al., Cancer Medicine, 4th ed, p1651)		02.3720
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.		02.3720
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.		02.3620
Thoracic Neoplasms
New abnormal growth of tissue in the THORAX.		01.9810
Poisoning, Fluoride
[description not available]		01.9810
Fluoride Poisoning
Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of FLUORIDE compounds.		01.9810
Cancer of Kidney
[description not available]		02.3620
Kidney Neoplasms
Tumors or cancers of the KIDNEY.		02.3620
B16 Melanoma
[description not available]		01.9810
Cicatrization
The formation of fibrous tissue in the place of normal tissue during the process of WOUND HEALING. It includes scar tissue formation occurring in healing internal organs as well as in the skin after surface injuries.		0210
Facial Dermatoses
Skin diseases involving the FACE.		0210
Facial Injuries
General or unspecified injuries to the soft tissue or bony portions of the face.		0210
Cicatrix
The fibrous tissue that replaces normal tissue during the process of WOUND HEALING.		0210
Skin Aging
The process of aging due to changes in the structure and elasticity of the skin over time. It may be a part of physiological aging or it may be due to the effects of ultraviolet radiation, usually through exposure to sunlight.		0210
Minimal Disease, Residual
[description not available]		03.3811
Bone Marrow Diseases
Diseases involving the BONE MARROW.		03.7621
Carcinoma, Anaplastic
[description not available]		03.7621
Cancer of Ovary
[description not available]		03.3811
Peritoneal Carcinomatosis
[description not available]		03.3811
Injuries, Radiation
[description not available]		03.7521
Cancer of the Fallopian Tube
[description not available]		03.3811
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.		03.7621
Fallopian Tube Neoplasms
Benign or malignant neoplasms of the FALLOPIAN TUBES. They are uncommon. If they develop, they may be located in the wall or within the lumen as a growth attached to the wall by a stalk.		03.3811
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.		03.3811
Peritoneal Neoplasms
Tumors or cancer of the PERITONEUM.		03.3811
Disease Exacerbation
[description not available]		03.3811
Anaplastic Astrocytoma
[description not available]		03.7521
Benign Neoplasms, Brain
[description not available]		07.06182
Glial Cell Tumors
[description not available]		03.3811
Anaplastic Oligodendroglioma
[description not available]		03.3811
Astrocytoma
Neoplasms of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors. Fibrillary astrocytomas are the most common type and may be classified in order of increasing malignancy (grades I through IV). In the first two decades of life, astrocytomas tend to originate in the cerebellar hemispheres; in adults, they most frequently arise in the cerebrum and frequently undergo malignant transformation. (From Devita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2013-7; Holland et al., Cancer Medicine, 3d ed, p1082)		03.7521
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.		07.06182
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)		03.3811
Oligodendroglioma
A relatively slow-growing glioma that is derived from oligodendrocytes and tends to occur in the cerebral hemispheres, thalamus, or lateral ventricle. They may present at any age, but are most frequent in the third to fifth decades, with an earlier incidence peak in the first decade. Histologically, these tumors are encapsulated, relatively avascular, and tend to form cysts and microcalcifications. Neoplastic cells tend to have small round nuclei surrounded by unstained nuclei. The tumors may vary from well-differentiated to highly anaplastic forms. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2052; Adams et al., Principles of Neurology, 6th ed, p655)		03.3811
Innate Inflammatory Response
[description not available]		0210
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.		0210
Diffuse Parenchymal Lung Disease
[description not available]		0210
Diseases, Occupational
[description not available]		0210
Lung Diseases, Interstitial
A diverse group of lung diseases that affect the lung parenchyma. They are characterized by an initial inflammation of PULMONARY ALVEOLI that extends to the interstitium and beyond leading to diffuse PULMONARY FIBROSIS. Interstitial lung diseases are classified by their etiology (known or unknown causes), and radiological-pathological features.		0210
HPV Infection
[description not available]		0210
Fibroma, Shope
[description not available]		0210
Papillomavirus Infections
Neoplasms of the skin and mucous membranes caused by papillomaviruses. They are usually benign but some have a high risk for malignant progression.		0210
Bone Diseases
Diseases of BONES.		02.3520
Sarcoma 180
An experimental sarcoma of mice.		01.9510
Myelopathy
[description not available]		03.3370
Spinal Cord Diseases
Pathologic conditions which feature SPINAL CORD damage or dysfunction, including disorders involving the meninges and perimeningeal spaces surrounding the spinal cord. Traumatic injuries, vascular diseases, infections, and inflammatory/autoimmune processes may affect the spinal cord.		03.3370
Angioblastic Meningioma
[description not available]		01.9510
Spinal Diseases
Diseases involving the SPINE.		01.9510
Arachnoid Membrane Inflammation
[description not available]		02.3520
Meningioma
A relatively common neoplasm of the CENTRAL NERVOUS SYSTEM that arises from arachnoidal cells. The majority are well differentiated vascular tumors which grow slowly and have a low potential to be invasive, although malignant subtypes occur. Meningiomas have a predilection to arise from the parasagittal region, cerebral convexity, sphenoidal ridge, olfactory groove, and SPINAL CANAL. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2056-7)		01.9510
Bright Disease
A historical classification which is no longer used. It described acute glomerulonephritis, acute nephritic syndrome, or acute nephritis. Named for Richard Bright.		02.6430
Necrotizing Pyelonephritis
[description not available]		03.260
Glomerulonephritis
Inflammation of the renal glomeruli (KIDNEY GLOMERULUS) that can be classified by the type of glomerular injuries including antibody deposition, complement activation, cellular proliferation, and glomerulosclerosis. These structural and functional abnormalities usually lead to HEMATURIA; PROTEINURIA; HYPERTENSION; and RENAL INSUFFICIENCY.		02.6430
Pyelonephritis
Inflammation of the KIDNEY involving the renal parenchyma (the NEPHRONS); KIDNEY PELVIS; and KIDNEY CALICES. It is characterized by ABDOMINAL PAIN; FEVER; NAUSEA; VOMITING; and occasionally DIARRHEA.		03.260
Hydronephrosis
Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.		02.3520
Urinary Tract Diseases
[description not available]		01.9510
Ureteral Diseases
Pathological processes involving the URETERS.		01.9510
Kidney Diseases
Pathological processes of the KIDNEY or its component tissues.		04.15170
Hemorrhagic Shock
[description not available]		02.8640
Female Genital Diseases
[description not available]		01.9510
Genital Diseases, Female
Pathological processes involving the female reproductive tract (GENITALIA, FEMALE).		01.9510
Brain Disorders
[description not available]		06.97181
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.		06.97181
Cerebrospinal Fluid Rhinorrhea
Discharge of cerebrospinal fluid through the nose. Common etiologies include trauma, neoplasms, and prior surgery, although the condition may occur spontaneously. (Otolaryngol Head Neck Surg 1997 Apr;116(4):442-9)		04.9590
Necrosis
The death of cells in an organ or tissue due to disease, injury or failure of the blood supply.		01.9510
Central Nervous System Disease
[description not available]		02.3520
Central Nervous System Diseases
Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord.		02.3520
Brain Hemorrhage, Cerebral
[description not available]		02.3520
Cerebral Hemorrhage
Bleeding into one or both CEREBRAL HEMISPHERES including the BASAL GANGLIA and the CEREBRAL CORTEX. It is often associated with HYPERTENSION and CRANIOCEREBRAL TRAUMA.		02.3520
Hematoma
A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.		01.9510
Aneurysm, Anterior Cerebral Artery
[description not available]		02.6430
Hakim Syndrome
[description not available]		03.74110
Rupture, Spontaneous
Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.		01.9510
Intracranial Aneurysm
Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (		02.6430
Hydrocephalus, Normal Pressure
A form of compensated hydrocephalus characterized clinically by a slowly progressive gait disorder (see GAIT DISORDERS, NEUROLOGIC), progressive intellectual decline, and URINARY INCONTINENCE. Spinal fluid pressure tends to be in the high normal range. This condition may result from processes which interfere with the absorption of CSF including SUBARACHNOID HEMORRHAGE, chronic MENINGITIS, and other conditions. (From Adams et al., Principles of Neurology, 6th ed, pp631-3)		03.74110
Pachymeningitis
[description not available]		04.2570
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)		04.2570
Cerebrospinal Fluid Otorrhea
Discharge of cerebrospinal fluid through the external auditory meatus or through the eustachian tube into the nasopharynx. This is usually associated with CRANIOCEREBRAL TRAUMA (e.g., SKULL FRACTURE involving the TEMPORAL BONE;), NEUROSURGICAL PROCEDURES; or other conditions, but may rarely occur spontaneously. (From Am J Otol 1995 Nov;16(6):765-71)		03.7420
Hypothermia, Accidental
[description not available]		01.9510
Kidney Stones
[description not available]		01.9510
Hypothermia
Lower than normal body temperature, especially in warm-blooded animals.		01.9510
Ischemia
A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.		02.3520
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.		01.9510
Edema-Proteinuria-Hypertension Gestosis
[description not available]		01.9510
Pre-Eclampsia
A complication of PREGNANCY, characterized by a complex of symptoms including maternal HYPERTENSION and PROTEINURIA with or without pathological EDEMA. Symptoms may range between mild and severe. Pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease.		01.9510
Carcinoma, Bronchial
[description not available]		02.3520
Carcinoma, Bronchogenic
Malignant neoplasm arising from the epithelium of the BRONCHI. It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA.		02.3520
Chronic Kidney Failure
[description not available]		03.5630
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.		03.5630
Tuberculosis, Renal
Infection of the KIDNEY with species of MYCOBACTERIUM.		02.3520
Fistula
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.		02.8740
Complication, Postoperative
[description not available]		02.8740
Cranial Airocele
[description not available]		01.9510
Bronchial Fistula
An abnormal passage or communication between a bronchus and another part of the body.		01.9510
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.		02.8740
Diseases of Pharynx
[description not available]		01.9510
Endothelioma, Lymphatic
[description not available]		01.9510
Lymphangioma
A benign tumor resulting from a congenital malformation of the lymphatic system. Lymphangioendothelioma is a type of lymphangioma in which endothelial cells are the dominant component.		01.9510
Arteriovenous Malformations
Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.		03.2720
Intradural-Extramedullary Spinal Cord Neoplasms
[description not available]		01.9510
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)		01.9510
Spinal Cord Neoplasms
Benign and malignant neoplasms which occur within the substance of the spinal cord (intramedullary neoplasms) or in the space between the dura and spinal cord (intradural extramedullary neoplasms). The majority of intramedullary spinal tumors are primary CNS neoplasms including ASTROCYTOMA; EPENDYMOMA; and LIPOMA. Intramedullary neoplasms are often associated with SYRINGOMYELIA. The most frequent histologic types of intradural-extramedullary tumors are MENINGIOMA and NEUROFIBROMA.		01.9510
Brain Embolism and Thrombosis
[description not available]		02.3520
Synovial Cyst
Non-neoplastic tumor-like lesions at joints, developed from the SYNOVIAL MEMBRANE of a joint through the JOINT CAPSULE into the periarticular tissues. They are filled with SYNOVIAL FLUID with a smooth and translucent appearance. A synovial cyst can develop from any joint, but most commonly at the back of the knee, where it is known as POPLITEAL CYST.		01.9510
Achondroplasia, Severe, With Developmental Delay And Acanthosis Nigricans
[description not available]		02.3520
Achondroplasia
An autosomal dominant disorder that is the most frequent form of short-limb dwarfism. Affected individuals exhibit short stature caused by rhizomelic shortening of the limbs, characteristic facies with frontal bossing and mid-face hypoplasia, exaggerated lumbar lordosis, limitation of elbow extension, GENU VARUM, and trident hand. (Online Mendelian Inheritance in Man, http://www.ncbi.nlm.nih.gov/Omim, MIM#100800, April 20, 2001)		02.3520
Amentia
[description not available]		01.9510
Dementia
An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.		01.9510
Cardiovascular Stroke
[description not available]		02.6430
Myocardial Infarction
NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).		02.6430
Body Weight
The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.		02.3520
Adenocarcinoma, Basal Cell
[description not available]		02.3520
Adenocarcinoma
A malignant epithelial tumor with a glandular organization.		02.3520
Neoplasms, Bronchial
[description not available]		02.3520
Bronchial Neoplasms
Tumors or cancer of the BRONCHI.		02.3520
Hemorrhage, Subarachnoid
[description not available]		02.8640
Subarachnoid Hemorrhage
Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.		02.8640
Autoimmune Diabetes
[description not available]		01.9710
Albuminuria
The presence of albumin in the urine, an indicator of KIDNEY DISEASES.		01.9710
Diabetes Mellitus, Type 1
A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.		01.9710
Fibroid
[description not available]		01.9710
Cancer of the Uterus
[description not available]		02.3620
Leiomyoma
A benign tumor derived from smooth muscle tissue, also known as a fibroid tumor. They rarely occur outside of the UTERUS and the GASTROINTESTINAL TRACT but can occur in the SKIN and SUBCUTANEOUS TISSUE, probably arising from the smooth muscle of small blood vessels in these tissues.		01.9710
Uterine Neoplasms
Tumors or cancer of the UTERUS.		02.3620
Diabetic Glomerulosclerosis
[description not available]		02.6430
Diabetic Nephropathies
KIDNEY injuries associated with diabetes mellitus and affecting KIDNEY GLOMERULUS; ARTERIOLES; KIDNEY TUBULES; and the interstitium. Clinical signs include persistent PROTEINURIA, from microalbuminuria progressing to ALBUMINURIA of greater than 300 mg/24 h, leading to reduced GLOMERULAR FILTRATION RATE and END-STAGE RENAL DISEASE.		02.6430
Cystic Kidney Diseases
[description not available]		02.3520
Acute Kidney Failure
[description not available]		01.9510
Kidney Diseases, Cystic
A heterogeneous group of hereditary and acquired disorders in which the KIDNEY contains one or more CYSTS unilaterally or bilaterally (KIDNEY, CYSTIC).		02.3520
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.		01.9510
Ventricular Fibrillation
A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.		01.9510
Abscess, Pulmonary
[description not available]		01.9510
Experimental Lung Inflammation
Inflammation of any part, segment or lobe, of the lung parenchyma.		01.9510
Sarcoma, Epithelioid
[description not available]		01.9510
Pulmonary Consumption
[description not available]		01.9510
Lung Abscess
Solitary or multiple collections of PUS within the lung parenchyma as a result of infection by bacteria, protozoa, or other agents.		01.9510
Pneumonia
Infection of the lung often accompanied by inflammation.		01.9510
Sarcoma
A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant.		01.9510
Tuberculosis, Pulmonary
MYCOBACTERIUM infections of the lung.		01.9510
Microcephaly
A congenital abnormality in which the CEREBRUM is underdeveloped, the fontanels close prematurely, and, as a result, the head is small. (Desk Reference for Neuroscience, 2nd ed.)		01.9510
Aging
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.		01.9510
Asphyxia Neonatorum
Respiratory failure in the newborn. (Dorland, 27th ed)		01.9510
Haemophilus influenzae Meningitis Type B
[description not available]		01.9410
Arterial Diseases, Cerebral
[description not available]		01.9410
Cerebral Arterial Diseases
Pathological conditions of intracranial ARTERIES supplying the CEREBRUM. These diseases often are due to abnormalities or pathological processes in the ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; and POSTERIOR CEREBRAL ARTERY.		01.9410
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.		01.9410
Arteriovenous Malformations, Cerebral
[description not available]		01.9510
Intracranial Arteriovenous Malformations
Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.		01.9510
Intraocular Pressure
The pressure of the fluids in the eye.		01.9410
Injuries, Mandibular
[description not available]		02.8610
Bone Fractures
[description not available]		02.8610
Aneurysm, Aortic
[description not available]		02.8610
Hematoma, Subdural
Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.		03.5530
Chylopericardium
[description not available]		02.8610
Chest Injuries
[description not available]		02.8610
Abdominal Injuries
General or unspecified injuries involving organs in the abdominal cavity.		02.8610
Cranial Epidural Hematoma
[description not available]		02.8610
Splenic Rupture
Rupture of the SPLEEN due to trauma or disease.		02.8610
Diaphragmatic Hernia, Traumatic
[description not available]		02.8610
Aortic Aneurysm
An abnormal balloon- or sac-like dilatation in the wall of AORTA.		02.8610
Pericardial Effusion
Fluid accumulation within the PERICARDIUM. Serous effusions are associated with pericardial diseases. Hemopericardium is associated with trauma. Lipid-containing effusion (chylopericardium) results from leakage of THORACIC DUCT. Severe cases can lead to CARDIAC TAMPONADE.		02.8610
Fractures, Bone
Breaks in bones.		02.8610
Complications of Diabetes Mellitus
[description not available]		02.3520
Arteriosclerosis
Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.		01.9410
Urinary Fistula
An abnormal passage in any part of the URINARY TRACT between itself or with other organs.		01.9510
Mixed Pineocytoma-Pineoblastoma
[description not available]		01.9510
Pinealoma
Neoplasms which originate from pineal parenchymal cells that tend to enlarge the gland and be locally invasive. The two major forms are pineocytoma and the more malignant pineoblastoma. Pineocytomas have moderate cellularity and tend to form rosette patterns. Pineoblastomas are highly cellular tumors containing small, poorly differentiated cells. These tumors occasionally seed the neuroaxis or cause obstructive HYDROCEPHALUS or Parinaud's syndrome. GERMINOMA; CARCINOMA, EMBRYONAL; GLIOMA; and other neoplasms may arise in the pineal region with germinoma being the most common pineal region tumor. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2064; Adams et al., Principles of Neurology, 6th ed, p670)		01.9510
Spinal Neoplasms
New abnormal growth of tissue in the SPINE.		01.9510
Leiomyosarcoma, Epithelioid
[description not available]		01.9510
Cancer of Mediastinum
[description not available]		01.9510
Leiomyosarcoma
A sarcoma containing large spindle cells of smooth muscle. Although it rarely occurs in soft tissue, it is common in the viscera. It is the most common soft tissue sarcoma of the gastrointestinal tract and uterus. The median age of patients is 60 years. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1865)		01.9510
Mediastinal Neoplasms
Tumors or cancer of the MEDIASTINUM.		01.9510
Nephritis
Inflammation of any part of the KIDNEY.		01.9510
Cyst
[description not available]		02.6430
Bleeding
[description not available]		01.9510
Blood Pressure, Low
[description not available]		01.9510
Hemorrhage
Bleeding or escape of blood from a vessel.		01.9510
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.		01.9510
C gattii Infection
[description not available]		01.9510
Cryptococcosis
Fungal infection caused by genus CRYPTOCOCCUS.		01.9510
Benign Cerebellar Neoplasms
[description not available]		01.9510
Arachnoidal Cerebellar Sarcoma, Circumscribed
[description not available]		01.9510
Medulloblastoma
A malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood (see NEUROECTODERMAL TUMOR, PRIMITIVE). The tumor occurs most frequently in the first decade of life with the most typical location being the cerebellar vermis. Histologic features include a high degree of cellularity, frequent mitotic figures, and a tendency for the cells to organize into sheets or form rosettes. Medulloblastoma have a high propensity to spread throughout the craniospinal intradural axis. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2060-1)		01.9510
Liver Dysfunction
[description not available]		01.9510
Acute Edematous Pancreatitis
[description not available]		01.9510
Cancer of Parathyroid
[description not available]		01.9510
Centriacinar Emphysema
[description not available]		01.9510
Splenic Diseases
Diseases involving the SPLEEN.		01.9510
Cancer of Parotid
[description not available]		01.9510
Liver Diseases
Pathological processes of the LIVER.		01.9510
Pancreatitis
INFLAMMATION of the PANCREAS. Pancreatitis is classified as acute unless there are computed tomographic or endoscopic retrograde cholangiopancreatographic findings of CHRONIC PANCREATITIS (International Symposium on Acute Pancreatitis, Atlanta, 1992). The two most common forms of acute pancreatitis are ALCOHOLIC PANCREATITIS and gallstone pancreatitis.		01.9510
Parathyroid Neoplasms
Tumors or cancer of the PARATHYROID GLANDS.		01.9510
Parotid Neoplasms
Tumors or cancer of the PAROTID GLAND.		01.9510
Thyroid Diseases
Pathological processes involving the THYROID GLAND.		01.9510
Diffuse Large B-Cell Lymphoma
[description not available]		01.9410
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.		01.9410
Brain Vascular Disorders
[description not available]		02.8610
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.		02.8610
Cerebellar Diseases
Diseases that affect the structure or function of the cerebellum. Cardinal manifestations of cerebellar dysfunction include dysmetria, GAIT ATAXIA, and MUSCLE HYPOTONIA.		02.3520
Dandy-Walker Complex
[description not available]		01.9410
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.		01.9410
Nervous System Disorders
[description not available]		01.9410
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.		01.9410
Experimental Pneumococcal Meningitis
[description not available]		01.9410
Meningitis, Pneumococcal
An acute purulent infection of the meninges and subarachnoid space caused by Streptococcus pneumoniae, most prevalent in children and adults over the age of 60. This illness may be associated with OTITIS MEDIA; MASTOIDITIS; SINUSITIS; RESPIRATORY TRACT INFECTIONS; sickle cell disease (ANEMIA, SICKLE CELL); skull fractures; and other disorders. Clinical manifestations include FEVER; HEADACHE; neck stiffness; and somnolence followed by SEIZURES; focal neurologic deficits (notably DEAFNESS); and COMA. (From Miller et al., Merritt's Textbook of Neurology, 9th ed, p111)		01.9410
Acquired Meningocele
[description not available]		01.9410
Anaplastic Ependymoma
[description not available]		02.3520
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)		02.3520
Cancer of Skin
[description not available]		01.9410
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)		01.9410
Skin Neoplasms
Tumors or cancer of the SKIN.		01.9410
Anoxemia
[description not available]		01.9410
Fetal Death
Death of the developing young in utero. BIRTH of a dead FETUS is STILLBIRTH.		01.9410
Hypoxia
Sub-optimal OXYGEN levels in the ambient air of living organisms.		01.9410
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