Manganese dioxide (MnO2) is a naturally occurring mineral commonly found in the environment. It is a black or brown solid with a variety of applications.
**Synthesis:**
Manganese dioxide can be synthesized through various methods, including:
- **Electrochemical deposition:** This involves the reduction of manganese ions in solution to form MnO2 on an electrode surface.
- **Thermal decomposition:** Heating manganese salts or other manganese oxides can yield MnO2.
- **Chemical precipitation:** Reacting soluble manganese salts with oxidizing agents like potassium permanganate can precipitate MnO2.
**Effects:**
Manganese dioxide is generally considered non-toxic and is used in various applications. However, prolonged exposure to high concentrations of manganese dioxide dust can cause respiratory irritation.
**Importance:**
- **Battery applications:** MnO2 is a key component in alkaline batteries, serving as the cathode material.
- **Catalyst:** It acts as a catalyst in various chemical reactions, including the oxidation of organic compounds.
- **Pigment:** Manganese dioxide is used as a black pigment in paints and inks.
- **Water treatment:** It can be used to remove pollutants from water, such as iron and arsenic.
**Research Interest:**
MnO2 is extensively studied due to its diverse properties and applications:
- **Electrochemical properties:** Researchers explore its potential in energy storage devices like batteries and supercapacitors.
- **Catalytic activity:** Its catalytic properties in various organic and inorganic reactions are being investigated.
- **Environmental applications:** Its ability to remove pollutants and act as a sorbent for heavy metals is studied for environmental remediation.
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| ID Source | ID |
|---|---|
| PubMed CID | 14801 |
| CHEBI ID | 136511 |
| MeSH ID | M0066648 |
| Synonym |
|---|
| mangaandioxyde |
| manganese (biossido di) |
| ec 215-202-6 |
| mangaanbioxyde |
| unii-tf219gu161 |
| manganese (dioxyde de) |
| manganese (diossido di) |
| tf219gu161 , |
| braunstein |
| manganese (bioxyd de) |
| bruinsteen |
| mnivo2 |
| mangandioxid [german] |
| einecs 215-202-6 |
| braunstein [german] |
| cement black |
| manganese binoxide |
| manganese (bioxyd de) [french] |
| black manganese oxide |
| manganese dioxide, ore of chapter 26 |
| mangaandioxyde [dutch] |
| ai3-52833 |
| bog manganese |
| manganese superoxide |
| manganese peroxide |
| manganese (diossido di) [italian] |
| manganese (dioxyde de) [french] |
| c.i. 77728 |
| manganese black |
| pyrolusite brown |
| bruinsteen [dutch] |
| manganese (biossido di) [italian] |
| mangaanbioxyde [dutch] |
| manganese dioxide , |
| manganese(iv) oxide |
| manganese(iv) oxide, >=99.99% trace metals basis |
| manganese(iv) oxide, 99.99% trace metals basis |
| mno2 |
| CHEBI:136511 , |
| mangandioxid |
| manganese(iv) dioxide |
| bis(oxido)manganese |
| dioxomanganese |
| manganese(iv) oxide, -325 mesh < 3 microns average by microtrac |
| FT-0628153 |
| AKOS015904163 |
| BP-21373 |
| manganese(iv) oxide 60-230 mesh (suitable for organic oxidations) |
| NUJOXMJBOLGQSY-UHFFFAOYSA-N |
| mfcd00003463 |
| manganese(iv) oxide, 99.997% (metals basis) |
| manganese(iv) oxide, nanorod, diam. x l 5-30 nm x 80-100 nm, 99% trace metals basis (excludes potassium content) |
| manganese(iv) oxide, 10 mum, reagent grade, >=90% |
| manganese(iv) oxide, reagentplus(r), >=99% |
| manganese(iv) oxide, cp |
| manganese(iv) oxide, p.a., 90.0% |
| Q407674 |
| methyl?5-(2-hydroxyethyl)thiophene-2-carboxylate |
| C21744 |
| mn(iv)o2 |
| manganese(iv) oxide nanorods |
| manganese oxide nanorods |
| manganese oxide nanowires |
| manganese oxide (mn2o4) |
| 197667-28-0 |
| DTXSID501314019 |
| dtxcid4022109 |
| Excerpt | Reference | Relevance |
|---|---|---|
| " There is limited information available on the feasibility of obtaining fingermarks, fibres, hair and DNA samples following an explosive incident, or a situation whereby an IED has been rendered safe following the utilisation of an appropriate defeat or render-safe tool." | ( Recovery of DNA and fingermarks following deployment of render-safe tools for vehicle-borne improvised explosive devices (VBIED). Houspian, A; Knott, F; Ramasamy, S, 2011) | 0.37 |
| " In the case of Pseudokirchneriella subcapitata, manganese dioxide powder should be used as an alternative quenching agent to catalase, since this enzyme exhibited a highly toxic effect towards these microalgae." | ( Investigation of the toxicity of common oxidants used in advanced oxidation processes and their quenching agents. Arslan-Alaton, I; Dursun, D; Olmez-Hanci, T, 2014) | 0.66 |
| Excerpt | Reference | Relevance |
|---|---|---|
| " Based on multiple linear regression slopes for liver, kidney and bone Mn concentrations, relative bioavailability of Mn from MnO, MnO2 and MnCO3 averaged 57." | ( Estimation of the relative bioavailability of manganese sources for sheep. Ammerman, CB; Henry, PR; Rao, PV; Wong-Valle, J, 1989) | 0.28 |
| "In the present work, the impact of speciation on the bioavailability of cadmium in sediments was investigated." | ( [Influence of speciation on the bioavailability of particle-bound cadmium in sediments]. Jia, YF; Wang, H; Wu, X; Zhu, HJ, 2010) | 0.36 |
| "Sediment particulates can be ingested by benthic animals, and the bioavailability of associated metals strongly depends on their speciation in the sediments." | ( Effects of sediment composition on cadmium bioaccumulation in the clam Meretrix meretrix Linnaeus. Jia, Y; Wang, S; Wu, X; Xie, L; Xu, L, 2013) | 0.39 |
| "Photodynamic nanotheranostics has shown great promise for cancer therapy; however, its therapeutic efficacy is limited due to the hypoxia of tumor microenvironment and the unfavorable bioavailability of existing photodynamic agents." | ( Oxygenic Hybrid Semiconducting Nanoparticles for Enhanced Photodynamic Therapy. Chen, P; Li, J; Pu, K; Qi, X; Zhu, H, 2018) | 0.48 |
| "Multifunctional nanoplatforms featuring promising properties including excellent loading efficiency, real-time monitoring, and improved cargo bioavailability and bioselectivity are in great demand by the biomedical research community." | ( Versatile Octapod-Shaped Hollow Porous Manganese(II) Oxide Nanoplatform for Real-Time Visualization of Cargo Delivery. Chen, X; Gao, J; Gong, X; Li, A; Lin, H; Liu, K; Shan, H; Wei, R; Zhang, K, 2019) | 0.51 |
| " Investigations of various antioxidant supplements, reactive oxidative species (ROS) pathway mediators, and free radical scavengers for treating osteoarthritis have demonstrated common disadvantages including poor bioavailability and stability, as well as rapid joint clearance or release profiles from delivery vehicles." | ( Manganese dioxide nanoparticles protect cartilage from inflammation-induced oxidative stress. Adjei, IM; Brown, SB; Kumar, S; Liseth, O; Sharma, B, 2019) | 1.96 |
| Excerpt | Relevance | Reference |
|---|---|---|
| "5 mL saline), twice a week for 3 months, for a total dosage of 11." | ( Maganese retention in rat brain. Knotková, J; Paduanová, Z; Svandová, E; Svihálková, J; Vojtísek, M, ) | 0.13 |
| "The degradation of PCB77 in diatomite by microwave-induced catalytic oxidation was studied in a sealed vial, including four effects such as microwave (MV) radiating time, addition of different nano-particle metal oxides, concentration and type of acids and dosage of MnO2." | ( [Catalytic degradation of PCB77 by microwave-induced nano-particle metal oxides in diatomite]. Dong, YH; Huang, GY; Zhao, L, 2009) | 0.35 |
| "2, the dosage of chlorine dioxide is 1,200 mg/L, the dosage of activated carbon-MnO(2) catalyst is 4 g by reacting 50 min." | ( Catalytic oxidation and spectroscopic analysis of simulated wastewater containing acid chrome blue K by using chlorine dioxide as oxidant. Shi, L; Yu, F, 2010) | 0.36 |
| " While KMnO(4) is too soluble to be used in reactive barriers, MCP could be introduced into the aquifer by filling of trenches or boreholes; this would allow a prolonged passive dosing of permanganate into the flowing groundwater." | ( Stabilization of potassium permanganate particles with manganese dioxide. Georgi, A; Kopinke, FD; Rusevova, K, 2012) | 0.63 |
| " The effects of factors including the form of MnO₂, dosage, pH, dosing sequence of in situ MnO₂on the enhanced coagulation were systematically evaluated." | ( Enhanced coagulation with in situ manganese dioxide on removal of humic acid in micro-polluted water. Wang, J; Zeng, Y; Zeng, Z, 2015) | 0.7 |
| Class | Description |
|---|---|
| manganese molecular entity | |
| metal oxide | An inorganic oxide that is an oxide of any metal. |
| [compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res] | |
| Pathway | Proteins | Compounds |
|---|---|---|
| manganese oxidation I | 1 | 7 |
| manganese oxidation II | 2 | 6 |
| Timeframe | Studies, This Drug (%) | All Drugs % |
|---|---|---|
| pre-1990 | 38 (5.76) | 18.7374 |
| 1990's | 19 (2.88) | 18.2507 |
| 2000's | 103 (15.61) | 29.6817 |
| 2010's | 352 (53.33) | 24.3611 |
| 2020's | 148 (22.42) | 2.80 |
| [information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] | ||
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.
| This Compound (81.38) All Compounds (24.57) |
| Publication Type | This drug (%) | All Drugs (%) |
|---|---|---|
| Trials | 1 (0.15%) | 5.53% |
| Reviews | 13 (1.93%) | 6.00% |
| Case Studies | 1 (0.15%) | 4.05% |
| Observational | 2 (0.30%) | 0.25% |
| Other | 658 (97.48%) | 84.16% |
| [information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] | ||
| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|---|---|---|---|---|
| 1,2,4-trichlorobenzene 1,2,4-trichlorobenzene : A trichlorobenzene with chloro substituents at positions 1, 2 and 4. | 1.99 | 1 | 0 | trichlorobenzene | |
| adenine [no description available] | 2.08 | 1 | 0 | 6-aminopurines; purine nucleobase | Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| ammonium hydroxide azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 2.47 | 2 | 0 | azane; gas molecular entity; mononuclear parent hydride | EC 3.5.1.4 (amidase) inhibitor; metabolite; mouse metabolite; neurotoxin; NMR chemical shift reference compound; nucleophilic reagent; refrigerant |
| benzene [no description available] | 10.66 | 5 | 1 | aromatic annulene; benzenes; volatile organic compound | carcinogenic agent; environmental contaminant; non-polar solvent |
| benzyl alcohol Benzyl Alcohol: A colorless liquid with a sharp burning taste and slight odor. It is used as a local anesthetic and to reduce pain associated with LIDOCAINE injection. Also, it is used in the manufacture of other benzyl compounds, as a pharmaceutic aid, and in perfumery and flavoring.. hydroxytoluene : Any member of the class of toluenes carrying one or more hydroxy substituents.. benzyl alcohol : An aromatic alcohol that consists of benzene bearing a single hydroxymethyl substituent.. aromatic alcohol : Any alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring.. aromatic primary alcohol : Any primary alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring. | 2.05 | 1 | 0 | benzyl alcohols | antioxidant; fragrance; metabolite; solvent |
| cadaverine [no description available] | 1.97 | 1 | 0 | alkane-alpha,omega-diamine | Daphnia magna metabolite; Escherichia coli metabolite; mouse metabolite; plant metabolite |
| carbamates [no description available] | 2.31 | 1 | 0 | amino-acid anion | |
| carbon monoxide Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas. | 7.97 | 4 | 0 | carbon oxide; gas molecular entity; one-carbon compound | biomarker; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; human metabolite; ligand; metabolite; mitochondrial respiratory-chain inhibitor; mouse metabolite; neurotoxin; neurotransmitter; P450 inhibitor; probe; signalling molecule; vasodilator agent |
| formic acid formic acid: RN given refers to parent cpd. formic acid : The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects. | 1.97 | 1 | 0 | monocarboxylic acid | antibacterial agent; astringent; metabolite; protic solvent; solvent |
| catechol [no description available] | 2 | 1 | 0 | catechols | allelochemical; genotoxin; plant metabolite |
| methane Methane: The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed). methane : A one-carbon compound in which the carbon is attached by single bonds to four hydrogen atoms. It is a colourless, odourless, non-toxic but flammable gas (b.p. -161degreeC). | 4.63 | 24 | 0 | alkane; gas molecular entity; mononuclear parent hydride; one-carbon compound | bacterial metabolite; fossil fuel; greenhouse gas |
| choline [no description available] | 7.13 | 1 | 0 | cholines | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite |
| citric acid, anhydrous Citric Acid: A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability.. citric acid : A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. | 2 | 1 | 0 | tricarboxylic acid | antimicrobial agent; chelator; food acidity regulator; fundamental metabolite |
| chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 3.5 | 8 | 0 | halide anion; monoatomic chlorine | cofactor; Escherichia coli metabolite; human metabolite |
| 2-cresol 2-cresol: RN given refers to parent cpd. o-cresol : A cresol that is phenol substituted by a methyl group at position 2. It is a minor urinary metabolite of toluene. | 2.01 | 1 | 0 | cresol | human xenobiotic metabolite |
| gallic acid gallate : A trihydroxybenzoate that is the conjugate base of gallic acid. | 2.21 | 1 | 0 | trihydroxybenzoic acid | antineoplastic agent; antioxidant; apoptosis inducer; astringent; cyclooxygenase 2 inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; geroprotector; human xenobiotic metabolite; plant metabolite |
| 4-nitrophenylphosphate nitrophenylphosphate: RN given refers to mono(4-nitrophenyl) ester of phosphoric acid. 4-nitrophenyl phosphate : An aryl phosphate resulting from the mono-esterification of phosphoric acid with 4-nitrophenol. | 2 | 1 | 0 | aryl phosphate | mouse metabolite |
| 3-chlorobenzoic acid [no description available] | 1.97 | 1 | 0 | monochlorobenzoic acid | drug metabolite |
| lactic acid Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. | 3 | 4 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite; Daphnia magna metabolite |
| dimethylamine [no description available] | 7.06 | 1 | 0 | methylamines; secondary aliphatic amine | metabolite |
| formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy | 8.21 | 5 | 0 | aldehyde; one-carbon compound | allergen; carcinogenic agent; disinfectant; EC 3.5.1.4 (amidase) inhibitor; environmental contaminant; Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| glycine [no description available] | 3.27 | 1 | 0 | alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical |
| 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. | 2.11 | 1 | 0 | 2-oxo monocarboxylic acid; aldehydic acid | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| hydrogen Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.. dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond. | 2.85 | 4 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
| dihydroxyphenylalanine Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring. | 2.55 | 2 | 0 | hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative | human metabolite |
| malonic acid malonic acid : An alpha,omega-dicarboxylic acid in which the two carboxy groups are separated by a single methylene group.. dicarboxylic acid : Any carboxylic acid containing two carboxy groups. | 7.25 | 1 | 0 | alpha,omega-dicarboxylic acid | human 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. | 7.6 | 1 | 0 | inositol phosphate | |
| melatonin [no description available] | 2.15 | 1 | 0 | acetamides; tryptamines | anticonvulsant; central nervous system depressant; geroprotector; hormone; human metabolite; immunological adjuvant; mouse metabolite; radical scavenger |
| 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. | 5.89 | 6 | 1 | metal allergen; nickel group element atom | epitope; micronutrient |
| nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 3.14 | 5 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
| nitric acid Nitric Acid: Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed). nitric acid : A nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. | 2.08 | 1 | 0 | nitrogen oxoacid | protic solvent; reagent |
| nitroxyl nitroxyl: hydroxamic acid oxidized to nitroxyl free radical. nitroxyl : A nitrogen oxoacid consisting of an oxygen atom double-bonded to an NH group. | 4.8 | 1 | 1 | nitrogen oxoacid | |
| nitrites Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed) | 2.72 | 3 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | human metabolite |
| n,n-dimethylaniline N,N-dimethylaniline: RN given refers to parent cpd; structure. dimethylaniline : A methylaniline carrying at least two methyl groups.. N,N-dimethylaniline : A tertiary amine that is aniline in which the amino hydrogens are replaced by two methyl groups. | 2.07 | 1 | 0 | dimethylaniline; tertiary amine | |
| hydroxide ion [no description available] | 2.01 | 1 | 0 | oxygen hydride | mouse metabolite |
| oxalic acid Oxalic Acid: A strong dicarboxylic acid occurring in many plants and vegetables. It is produced in the body by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine. It is used as an analytical reagent and general reducing agent.. oxalic acid : An alpha,omega-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. | 2.73 | 3 | 0 | alpha,omega-dicarboxylic acid | algal metabolite; human metabolite; plant metabolite |
| 4-nitrophenol 4-nitrophenol: RN given refers to parent cpd. mononitrophenol : A nitrophenol that is phenol carrying a single nitro substituent at unspecified position.. 4-nitrophenol : A member of the class of 4-nitrophenols that is phenol in which the hydrogen that is para to the hydroxy group has been replaced by a nitro group. | 2.51 | 2 | 0 | 4-nitrophenols | human xenobiotic metabolite; mouse metabolite |
| triphosphoric acid triphosphoric acid: used as water softener, peptizing agent, emulsifier & dispersing agent; ingredient of cleansers; meat preservative; RN given refers to parent cpd; structure | 2 | 1 | 0 | acyclic phosphorus acid anhydride; phosphorus oxoacid | |
| pentachlorophenol PENTA: structure given in first source | 2.72 | 3 | 0 | aromatic fungicide; chlorophenol; organochlorine pesticide; pentachlorobenzenes | human xenobiotic metabolite |
| phenol [no description available] | 3.45 | 7 | 0 | phenols | antiseptic drug; disinfectant; human xenobiotic metabolite; mouse metabolite |
| phosphoric acid phosphoric acid: concise etchant is 37% H3PO4. phosphoric acid : A phosphorus oxoacid that consists of one oxo and three hydroxy groups joined covalently to a central phosphorus atom. | 2.08 | 1 | 0 | phosphoric acids | algal metabolite; fertilizer; human metabolite; NMR chemical shift reference compound; solvent |
| diphosphoric acid diphosphoric acid : An acyclic phosphorus acid anhydride obtained by condensation of two molecules of phosphoric acid. | 2.5 | 2 | 0 | acyclic phosphorus acid anhydride; phosphorus oxoacid | Escherichia coli metabolite |
| 1-propanol 1-Propanol: A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.. propan-1-ol : The parent member of the class of propan-1-ols that is propane in which a hydrogen of one of the methyl groups is replaced by a hydroxy group. | 2.47 | 2 | 0 | propan-1-ols; short-chain primary fatty alcohol | metabolite; protic solvent |
| propionic acid propionic acid : A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | 2.08 | 1 | 0 | saturated fatty acid; short-chain fatty acid | antifungal drug |
| pyridine azine : An organonitrogen compound of general structure RCH=N-N=CHR or RR'C=N-N=CRR'. | 2.01 | 1 | 0 | azaarene; mancude organic heteromonocyclic parent; monocyclic heteroarene; pyridines | environmental contaminant; NMR chemical shift reference compound |
| pyruvic acid Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed). pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis. | 2.02 | 1 | 0 | 2-oxo monocarboxylic acid | cofactor; fundamental metabolite |
| 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. | 2.1 | 1 | 0 | divalent inorganic anion; sulfur oxide; sulfur oxoanion | human metabolite |
| sulfites Sulfites: Inorganic salts of sulfurous acid.. sulfites : Any sulfurous acid derivative that is a salt or an ester of sulfurous acid.. organosulfonate oxoanion : An organic anion obtained by deprotonation of the sufonate group(s) of any organosulfonic acid.. sulfite : A sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3). | 2.53 | 2 | 0 | divalent inorganic anion; sulfur oxide; sulfur oxoanion | |
| succinic acid Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. | 4.8 | 1 | 1 | alpha,omega-dicarboxylic acid; C4-dicarboxylic acid | anti-ulcer drug; fundamental metabolite; micronutrient; nutraceutical; radiation protective agent |
| sulfuric acid sulfuric acid : A sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. | 2.8 | 3 | 0 | sulfur oxoacid | catalyst |
| sulfur dioxide Sulfur Dioxide: A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant. | 2.48 | 2 | 0 | sulfur oxide | Escherichia coli metabolite; food bleaching agent; refrigerant |
| toluene methylbenzene : Any alkylbenzene that is benzene substituted with one or more methyl groups. | 5.53 | 4 | 1 | methylbenzene; toluenes; volatile organic compound | cholinergic antagonist; fuel additive; neurotoxin; non-polar solvent |
| trimethyloxamine trimethyloxamine: used in manufacture of quaternary ammonium cpds; insect attractant; warming agent for gas; oxidant; structure. trimethylamine N-oxide : A tertiary amine oxide resulting from the oxidation of the amino group of trimethylamine. | 2.31 | 1 | 0 | tertiary amine oxide | Escherichia coli metabolite; metabolite; osmolyte |
| trimethylamine [no description available] | 2.31 | 1 | 0 | methylamines; tertiary amine | Escherichia coli metabolite; human xenobiotic metabolite |
| 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. | 10.45 | 3 | 1 | uric acid | Escherichia coli metabolite; human metabolite; mouse metabolite |
| urea pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives. | 4.8 | 1 | 1 | isourea; monocarboxylic acid amide; one-carbon compound | Daphnia magna metabolite; Escherichia coli metabolite; fertilizer; flour treatment agent; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid: An IBOTENIC ACID homolog and glutamate agonist. The compound is the defining agonist for the AMPA subtype of glutamate receptors (RECEPTORS, AMPA). It has been used as a radionuclide imaging agent but is more commonly used as an experimental tool in cell biological studies. | 2.6 | 1 | 0 | non-proteinogenic alpha-amino acid | |
| 2-(n-heptyl)-4-hydroxyquinoline n-oxide 2-(n-heptyl)-4-hydroxyquinoline N-oxide: structure. 2-heptyl-4-hydroxyquinoline N-oxide : An inhibitor of the mitochondrial respiratory chain at cytochrome bc1 and of photosynthetic electron flow immediately before cytochrome b559. | 1.96 | 1 | 0 | monohydroxyquinoline | |
| 5,5-dimethyl-1-pyrroline-1-oxide 5,5-dimethyl-1-pyrroline-1-oxide: do not confuse with DMPO (4',5'-dihydroxy-7-methoxy-4-phenyl-5,2'-oxidocoumarin). 5,5-dimethyl-1-pyrroline N-oxide : A member of the class of 1-pyrroline nitrones (1-pyrroline N-oxides) resulting from the formal N-oxidation of 5,5-dimethyl-1-pyrroline. Used as a spin trap for the study of radicals formed by enzymatic acetaldehyde oxidation. | 1.98 | 1 | 0 | 1-pyrroline nitrones | neuroprotective agent; spin trapping reagent |
| 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. | 7.49 | 2 | 0 | acetamides; 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 |
| albendazole [no description available] | 10.12 | 2 | 1 | aryl sulfide; benzimidazoles; benzimidazolylcarbamate fungicide; carbamate ester | anthelminthic drug; microtubule-destabilising agent; tubulin modulator |
| cetylpyridinium Cetylpyridinium: Cationic bactericidal surfactant used as a topical antiseptic for skin, wounds, mucous membranes, instruments, etc.; and also as a component in mouthwash and lozenges. | 2.11 | 1 | 0 | pyridinium ion | |
| chloroquine Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.. chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis. | 4.8 | 1 | 1 | aminoquinoline; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antimalarial; antirheumatic drug; autophagy inhibitor; dermatologic drug |
| chlorpyrifos Chlorpyrifos: An organothiophosphate cholinesterase inhibitor that is used as an insecticide and as an acaricide.. chlorpyrifos : An organic thiophosphate that is O,O-diethyl hydrogen phosphorothioate in which the hydrogen of the hydroxy group has been replaced by a 3,5,6-trichloropyridin-2-yl group. | 2.17 | 1 | 0 | chloropyridine; organic thiophosphate | acaricide; agrochemical; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; environmental contaminant; insecticide; xenobiotic |
| 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. | 2.13 | 1 | 0 | aminoquinoline; cyclopropanes; fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone; zwitterion | antibacterial drug; antiinfective agent; antimicrobial agent; DNA synthesis inhibitor; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; environmental contaminant; topoisomerase IV inhibitor; xenobiotic |
| 4-cresol 4-cresol: RN given refers to parent cpd. p-cresol : A cresol that consists of toluene substituted by a hydroxy group at position 4. It is a metabolite of aromatic amino acid metabolism produced by intestinal microflora in humans and animals. | 2 | 1 | 0 | cresol | Escherichia coli metabolite; human metabolite; uremic toxin |
| deferoxamine Deferoxamine: Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form.. desferrioxamine B : An acyclic desferrioxamine that is butanedioic acid in which one of the carboxy groups undergoes formal condensation with the primary amino group of N-(5-aminopentyl)-N-hydroxyacetamide and the second carboxy group undergoes formal condensation with the hydroxyamino group of N(1)-(5-aminopentyl)-N(1)-hydroxy-N(4)-[5-(hydroxyamino)pentyl]butanediamide. It is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator. | 2.89 | 4 | 0 | acyclic desferrioxamine | bacterial metabolite; ferroptosis inhibitor; iron chelator; siderophore |
| dibutyl phthalate Dibutyl Phthalate: A plasticizer used in most plastics and found in water, air, soil, plants and animals. It may have some adverse effects with long-term exposure.. dibutyl phthalate : A phthalate ester that is the diester obtained by the formal condensation of the carboxy groups of phthalic acid with two molecules of butan-1-ol. Although used extensively as a plasticiser, it is a ubiquitous environmental contaminant that poses a risk to humans. | 2.02 | 1 | 0 | diester; phthalate ester | EC 3.2.1.20 (alpha-glucosidase) inhibitor; environmental contaminant; metabolite; plasticiser; teratogenic 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. | 2.48 | 2 | 0 | amino 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 |
| dichlorophen Dichlorophen: Nontoxic laxative vermicide effective for taenia infestation. It tends to produce colic and nausea. It is also used as a veterinary fungicide, anthelmintic, and antiprotozoan. (From Merck, 11th ed.) | 2.07 | 1 | 0 | bridged diphenyl fungicide; diarylmethane | |
| diuron Diuron: A pre-emergent herbicide.. diuron : A member of the class of 3-(3,4-substituted-phenyl)-1,1-dimethylureas that is urea in which both of the hydrogens attached to one nitrogen are substituted by methyl groups, and one of the hydrogens attached to the other nitrogen is substituted by a 3,4-dichlorophenyl group. | 2.15 | 1 | 0 | 3-(3,4-substituted-phenyl)-1,1-dimethylurea; dichlorobenzene | environmental contaminant; mitochondrial respiratory-chain inhibitor; photosystem-II inhibitor; urea herbicide; xenobiotic |
| 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. | 2.11 | 1 | 0 | ||
| isoniazid Hydra: A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.. hydrazide : Compounds derived from oxoacids RkE(=O)l(OH)m (l =/= 0) by replacing -OH by -NRNR2 (R groups are commonly H). (IUPAC). | 2.31 | 1 | 0 | carbohydrazide | antitubercular agent; drug allergen |
| malathion Malathion: A wide spectrum aliphatic organophosphate insecticide widely used for both domestic and commercial agricultural purposes.. malathion : A racemate comprising equimolar amounts of (R) and (S)-malathion. It is a broad spectrum organophosphate proinsecticide used to control a wide range of pests including Coleoptera, Diptera, fruit flies, mosquitos and spider mites.. diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate : A diester that is diethyl succinate in which position 2 is substituted by a (dimethoxyphosphorothioyl)thio group. | 2.25 | 1 | 0 | diester; ethyl ester; organic thiophosphate | |
| metformin Metformin: A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289). metformin : A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1. | 4.8 | 1 | 1 | guanidines | environmental contaminant; geroprotector; hypoglycemic agent; xenobiotic |
| methyl parathion Methyl Parathion: The methyl homolog of parathion. An effective, but highly toxic, organothiophosphate insecticide and cholinesterase inhibitor.. parathion-methyl : A C-nitro compound that is 4-nitrophenol substituted by a (dimethoxyphosphorothioyl)oxy group at position 4. | 7.13 | 1 | 0 | C-nitro compound; organic thiophosphate; organothiophosphate insecticide | acaricide; agrochemical; antifungal agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; environmental contaminant; genotoxin |
| midazolam Midazolam: A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH.. midazolam : An imidazobenzodiazepine that is 4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted by a methyl, 2-fluorophenyl and chloro groups at positions 1, 6 and 8, respectively. | 2.01 | 1 | 0 | imidazobenzodiazepine; monofluorobenzenes; organochlorine compound | anticonvulsant; antineoplastic agent; anxiolytic drug; apoptosis inducer; central nervous system depressant; GABAA receptor agonist; general anaesthetic; muscle relaxant; sedative |
| mitoxantrone Mitoxantrone: An anthracenedione-derived antineoplastic agent.. mitoxantrone : A dihydroxyanthraquinone that is 1,4-dihydroxy-9,10-anthraquinone which is substituted by 6-hydroxy-1,4-diazahexyl groups at positions 5 and 8. | 2.17 | 1 | 0 | dihydroxyanthraquinone | analgesic; antineoplastic agent |
| monodansylcadaverine monodansylcadaverine: inhibits cross linkage of fibrin. monodansylcadaverine : A sulfonamide obtained by formal condensation of the sulfo group of 5-(dimethylamino)naphthalene-1-sulfonic acid with one of the amino groups of cadaverine. | 1.97 | 1 | 0 | aminonaphthalene; primary amino compound; sulfonamide; tertiary amino compound | EC 2.3.2.13 (protein-glutamine gamma-glutamyltransferase) inhibitor; fluorochrome; protective agent |
| ofloxacin Ofloxacin: A synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA GYRASE, halting DNA REPLICATION.. 9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid : An oxazinoquinoline that is 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinolin-7-one substituted by methyl, carboxy, fluoro, and 4-methylpiperazin-1-yl groups at positions 3, 6, 9, and 10, respectively.. ofloxacin : A racemate comprising equimolar amounts of levofloxacin and dextrofloxacin. It is a synthetic fluoroquinolone antibacterial agent which inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication. | 4.8 | 1 | 1 | 3-oxo monocarboxylic acid; N-arylpiperazine; N-methylpiperazine; organofluorine compound; oxazinoquinoline | |
| 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). | 2.46 | 2 | 0 | 1,4-benzoquinones | cofactor; human xenobiotic metabolite; mouse metabolite |
| 4-chlorophenol 4-chlorophenol: used as a root canal irrigant. 4-chlorophenol : A monochlorophenol substituted at the pare position by a chlorine atom. | 2.44 | 2 | 0 | monochlorophenol | |
| phenobarbital Phenobarbital: A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.. phenobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and phenyl groups. | 2 | 1 | 0 | barbiturates | anticonvulsant; drug allergen; excitatory amino acid antagonist; sedative |
| 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. | 2.41 | 1 | 0 | inorganic chloride; inorganic potassium salt; potassium salt | fertilizer |
| protoporphyrin ix protoporphyrin IX: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7685. protoporphyrin : A cyclic tetrapyrrole that consists of porphyrin bearing four methyl substituents at positions 3, 8, 13 and 17, two vinyl substituents at positions 7 and 12 and two 2-carboxyethyl substituents at positions 2 and 18. The parent of the class of protoporphyrins. | 2.21 | 1 | 0 | ||
| pyrimethamine Maloprim: contains above 2 cpds | 4.8 | 1 | 1 | aminopyrimidine; monochlorobenzenes | antimalarial; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor |
| sulfadiazine Sulfadiazine: One of the short-acting SULFONAMIDES used in combination with PYRIMETHAMINE to treat toxoplasmosis in patients with acquired immunodeficiency syndrome and in newborns with congenital infections.. sulfadiazine : A sulfonamide consisting of pyrimidine with a 4-aminobenzenesulfonamido group at the 2-position.. diazine : The parent structure of the diazines. | 7.58 | 2 | 0 | pyrimidines; substituted aniline; sulfonamide antibiotic; sulfonamide | antiinfective agent; antimicrobial agent; antiprotozoal drug; coccidiostat; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; xenobiotic |
| sodium fluoride [no description available] | 5.27 | 3 | 1 | fluoride salt | mutagen |
| stearic acid octadecanoic acid : A C18 straight-chain saturated fatty acid component of many animal and vegetable lipids. As well as in the diet, it is used in hardening soaps, softening plastics and in making cosmetics, candles and plastics. | 2.08 | 1 | 0 | long-chain fatty acid; saturated fatty acid; straight-chain saturated fatty acid | algal metabolite; Daphnia magna metabolite; human metabolite; plant metabolite |
| sulfamethoxazole Sulfamethoxazole: A bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. Its broad spectrum of activity has been limited by the development of resistance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p208). sulfamethoxazole : An isoxazole (1,2-oxazole) compound having a methyl substituent at the 5-position and a 4-aminobenzenesulfonamido group at the 3-position. | 7.6 | 1 | 0 | isoxazoles; substituted aniline; sulfonamide antibiotic; sulfonamide | antibacterial agent; antiinfective agent; antimicrobial agent; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; epitope; P450 inhibitor; xenobiotic |
| sulfanilamide [no description available] | 2.6 | 1 | 0 | substituted aniline; sulfonamide antibiotic; sulfonamide | antibacterial agent; drug allergen; EC 4.2.1.1 (carbonic anhydrase) inhibitor |
| temozolomide [no description available] | 4.8 | 1 | 1 | imidazotetrazine; monocarboxylic acid amide; triazene derivative | alkylating agent; antineoplastic agent; prodrug |
| triclosan [no description available] | 2.8 | 3 | 0 | aromatic ether; dichlorobenzene; monochlorobenzenes; phenols | antibacterial agent; antimalarial; drug allergen; EC 1.3.1.9 [enoyl-[acyl-carrier-protein] reductase (NADH)] inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; fungicide; persistent organic pollutant; xenobiotic |
| 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. | 2.13 | 1 | 0 | polyazaalkane; tetramine | copper chelator |
| carbon tetrachloride Carbon Tetrachloride: A solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed). tetrachloromethane : A chlorocarbon that is methane in which all the hydrogens have been replaced by chloro groups. | 2.05 | 1 | 0 | chlorocarbon; chloromethanes | hepatotoxic agent; refrigerant |
| 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. | 4.8 | 1 | 1 | amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
| 2,3,4,6-tetrachlorophenol 2,3,4,6-tetrachlorophenol: RN given refers to parent cpd; see also record for tetrachlorophenol with locants for chloro groups not specified. 2,3,4,6-tetrachlorophenol : A tetrachlorophenol in which the chlorines are located at positions 2, 3, 4, and 6. | 3.13 | 5 | 0 | tetrachlorophenol | xenobiotic 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. | 2.06 | 1 | 0 | pyrimidine 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. | 2.03 | 1 | 0 | monohydroxyquinoline; quinolone | bacterial xenobiotic metabolite |
| levodopa Levodopa: The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.. L-dopa : An optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease | 2.21 | 1 | 0 | amino acid zwitterion; dopa; L-tyrosine derivative; non-proteinogenic L-alpha-amino acid | allelochemical; antidyskinesia agent; antiparkinson drug; dopaminergic agent; hapten; human metabolite; mouse metabolite; neurotoxin; plant growth retardant; plant metabolite; prodrug |
| edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. | 2.39 | 2 | 0 | ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid | anticoagulant; antidote; chelator; copper chelator; geroprotector |
| tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 10 | 2 | 1 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
| adenosine monophosphate Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | 2.06 | 1 | 0 | adenosine 5'-phosphate; purine ribonucleoside 5'-monophosphate | adenosine A1 receptor agonist; cofactor; EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.11 (fructose-bisphosphatase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
| methylene blue Methylene Blue: A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.. methylene blue : An organic chloride salt having 3,7-bis(dimethylamino)phenothiazin-5-ium as the counterion. A commonly used dye that also exhibits antioxidant, antimalarial, antidepressant and cardioprotective properties. | 3.97 | 12 | 0 | organic chloride salt | acid-base indicator; antidepressant; antimalarial; antimicrobial agent; antioxidant; cardioprotective agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 4.6.1.2 (guanylate cyclase) inhibitor; fluorochrome; histological dye; neuroprotective agent; physical tracer |
| carbaryl Carbaryl: A carbamate insecticide and parasiticide. It is a potent anticholinesterase agent belonging to the carbamate group of reversible cholinesterase inhibitors. It has a particularly low toxicity from dermal absorption and is used for control of head lice in some countries.. carbaryl : A carbamate ester obtained by the formal condensation of 1-naphthol with methylcarbamic acid. | 2.21 | 1 | 0 | carbamate ester; naphthalenes | acaricide; agrochemical; carbamate insecticide; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; plant growth retardant |
| cytidine monophosphate Cytidine Monophosphate: Cytidine (dihydrogen phosphate). A cytosine nucleotide containing one phosphate group esterified to the sugar moiety in the 2', 3' or 5' position.. cytidine 5'-monophosphate : A pyrimidine ribonucleoside 5'-monophosphate having cytosine as the nucleobase. | 2.06 | 1 | 0 | cytidine 5'-phosphate; pyrimidine ribonucleoside 5'-monophosphate | Escherichia coli metabolite; human metabolite; mouse 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. | 2.05 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid; methionine zwitterion; methionine; proteinogenic amino acid | antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical |
| phenylalanine Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. | 7.42 | 2 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid | algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
| acetylene [no description available] | 2.03 | 1 | 0 | alkyne; gas molecular entity; terminal acetylenic compound | |
| vinyl chloride Vinyl Chloride: A gas that has been used as an aerosol propellant and is the starting material for polyvinyl resins. Toxicity studies have shown various adverse effects, particularly the occurrence of liver neoplasms.. chloroethene : A monohaloethene that is ethene in which one of the hydrogens has been replaced by a chloro group. | 2.1 | 1 | 0 | chloroethenes; gas molecular entity; monohaloethene | carcinogenic agent |
| vinylidene chloride vinylidene chloride: potent hepatotoxin. 1,1-dichloroethene : A member of the class of chloroethenes that is ethene in which both of the hydrogens attached to one of the carbons are replaced by chlorines. | 2.1 | 1 | 0 | chloroethenes | carcinogenic agent; mouse metabolite; mutagen |
| iodoform [no description available] | 2.05 | 1 | 0 | iodomethanes | |
| tetramethylammonium tetramethylammonium: RN given refers to parent cpd. tetramethylammonium : The simplest quaternary ammonium cation, comprising a central nitrogen linked to four methyl groups. | 2.11 | 1 | 0 | quaternary ammonium ion | |
| methanesulfonic acid [no description available] | 7.08 | 1 | 0 | alkanesulfonic acid; one-carbon compound | Escherichia coli metabolite |
| phencyclidine Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. | 5.97 | 8 | 1 | benzenes; piperidines | anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug |
| 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) | 2.02 | 1 | 0 | primary 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. | 2.25 | 1 | 0 | alkadiene; hemiterpene; volatile organic compound | plant metabolite |
| trichloroethylene Trichloroethylene: A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.. triol : A chemical compound containing three hydroxy groups. | 2.49 | 2 | 0 | chloroethenes | inhalation anaesthetic; mouse 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. | 5.49 | 3 | 1 | alpha,beta-unsaturated monocarboxylic acid | metabolite |
| peracetic acid Peracetic Acid: A liquid that functions as a strong oxidizing agent. It has an acrid odor and is used as a disinfectant.. peracetic acid : A peroxy acid that is acetic acid in which the OH group is substituted by a hydroperoxy group. It is a versatile oxidising agent that is used as a disinfectant. | 2.05 | 1 | 0 | a peroxy acid | disinfectant; oxidising agent |
| tetrabromobisphenol a tetrabromobisphenol A: a brominated flame retardant. 3,3',5,5'-tetrabromobisphenol A : A bromobisphenol that is 4,4'-methanediyldiphenol in which the methylene hydrogens are replaced by two methyl groups and the phenyl rings are substituted by bromo groups at positions 2, 2', 6 and 6'. It is a brominated flame retardant. | 7.05 | 1 | 0 | brominated flame retardant; bromobisphenol | |
| 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. | 7.48 | 2 | 0 | bisphenol | endocrine 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. | 4.8 | 1 | 1 | organic chloride salt; xanthene dye | fluorescent probe; fluorochrome; histological dye |
| dichlorodicyanobenzoquinone dichlorodicyanobenzoquinone: request from searcher | 2.05 | 1 | 0 | ||
| 1,2,3-trichlorobenzene trichlorobenzene: commercial grade of trichlorobenzene containing 70% 1,2,4-trichlorobenzene & 30% 1,2,3-trichlorobenzene; see also record for 1,2,4-trichlorobenzene. trichlorobenzene : Any member of the class of chlorobenzenes carrying three chloro substituents at unspecified positions.. 1,2,3-trichlorobenzene : A trichlorobenzene carrying chloro substituents at positions 1, 2 and 3. | 1.99 | 1 | 0 | trichlorobenzene | |
| 2,4,6-trichlorophenol [no description available] | 2.03 | 1 | 0 | trichlorophenol | carcinogenic agent |
| n-vinyl-2-pyrrolidinone N-vinyl-2-pyrrolidinone: monomer of POVIDONE; structure given in first source | 4.8 | 1 | 1 | pyrrolidin-2-ones | |
| 2-nitrophenol nitrophenol : Any member of the class of phenols or substituted phenols carrying at least 1 nitro group. | 2.11 | 1 | 0 | 2-nitrophenols | |
| pyromellitic acid pyromellitic acid: RN given refers to parent cpd; structure. pyromellitic acid : A tetracarboxylic acid that is benzene substituted by four carboxy groups at positions 1, 2, 4 and 5 respectively. | 2.13 | 1 | 0 | benzoic acids; tetracarboxylic acid | |
| beta-glucono-1,5-lactone beta-glucono-1,5-lactone: structure. D-glucono-1,5-lactone : An aldono-1,5-lactone obtained from D-gluconic acid. | 2.05 | 1 | 0 | aldono-1,5-lactone; gluconolactone | animal metabolite; mouse metabolite |
| quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2.02 | 1 | 0 | mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene | |
| 3,3'-diaminobenzidine 3,3'-Diaminobenzidine: A chemically and thermodynamically stable derivative of BENZIDINE.. 3,3'-diaminobenzidine : A member of the class of biphenyls that is benzidine in which one of the hydrogens ortho to each of the amino groups has been replaced by an amino group. | 2.25 | 1 | 0 | biphenyls; substituted aniline | histological dye |
| 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. | 3.18 | 4 | 0 | phenylenediamine | hydrogen donor |
| 2-chlorophenol chlorophenol : A halophenol that is any phenol containing one or more covalently bonded chlorine atoms. | 2.05 | 1 | 0 | 2-halophenol; monochlorophenol | |
| 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. | 2.9 | 3 | 0 | aldehyde; furans | Maillard reaction product; metabolite |
| ethylbenzene [no description available] | 4.8 | 1 | 1 | alkylbenzene | |
| styrene Styrene: A colorless, toxic liquid with a strong aromatic odor. It is used to make rubbers, polymers and copolymers, and polystyrene plastics.. styrene : A vinylarene that is benzene carrying a vinyl group. It has been isolated from the benzoin resin produced by Styrax species. | 2.45 | 2 | 0 | styrenes; vinylarene; volatile organic compound | mouse metabolite; mutagen; plant metabolite |
| 1,3-butadiene buta-1,3-diene : A butadiene with unsaturation at positions 1 and 3. | 2.08 | 1 | 0 | butadiene | carcinogenic agent; mutagen |
| acrylonitrile [no description available] | 2.08 | 1 | 0 | aliphatic nitrile; volatile organic compound | antifungal agent; carcinogenic agent; fungal metabolite; mutagen; polar aprotic solvent |
| melamine melamine: RN given refers to parent cpd; structure. melamine : A trimer of cyanamide, with a 1,3,5-triazine skeleton. | 2.13 | 1 | 0 | triamino-1,3,5-triazine | xenobiotic metabolite |
| pyrroles 1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen. | 3.04 | 4 | 0 | pyrrole; secondary amine | |
| 1,4-butanediol butane-1,4-diol : A butanediol that is butane in which one hydrogen of each of the methyl groups is substituted by a hydroxy group. A colourless, water-miscible, viscous liquid at room temperature (m.p. 16degreeC) with a high boiling point (230degreeC), it is mainly used for the production of other organic chemicals, particularly the solvent oxolane (also known as tetrahydrofuran or THF). | 2.03 | 1 | 0 | butanediol; glycol | neurotoxin; prodrug; protic solvent |
| 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). | 2.05 | 1 | 0 | alkane | plant metabolite |
| phenformin Phenformin: A biguanide hypoglycemic agent with actions and uses similar to those of METFORMIN. Although it is generally considered to be associated with an unacceptably high incidence of lactic acidosis, often fatal, it is still available in some countries. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290). phenformin : A member of the class of biguanides that is biguanide in which one of the terminal nitrogen atoms is substituted by a 2-phenylethyl group. It was used as an anti-diabetic drug but was later withdrawn from the market due to potential risk of lactic acidosis. | 2.31 | 1 | 0 | biguanides | antineoplastic agent; geroprotector; hypoglycemic agent |
| diethylhexyl phthalate Diethylhexyl Phthalate: An ester of phthalic acid. It appears as a light-colored, odorless liquid and is used as a plasticizer for many resins and elastomers.. bis(2-ethylhexyl) phthalate : A phthalate ester that is the bis(2-ethylhexyl) ester of benzene-1,2-dicarboxylic acid. | 2.02 | 1 | 0 | diester; phthalate ester | androstane receptor agonist; apoptosis inhibitor; plasticiser |
| hexachlorobenzene Hexachlorobenzene: An agricultural fungicide and seed treatment agent.. hexachlorobenzene : A member of the class of chlorobenzenes that is benzene in which all of the hydrogens are replaced by chlorines. An agricultural fungicide introduced in the mid-1940s and formerly used as a seed treatment, its use has been banned since 1984 under the Stockholm Convention on Persistent Organic Pollutants. | 1.99 | 1 | 0 | aromatic fungicide; chlorobenzenes | antifungal agrochemical; carcinogenic agent; persistent organic pollutant |
| framycetin Framycetin: A component of NEOMYCIN that is produced by Streptomyces fradiae. On hydrolysis it yields neamine and neobiosamine B. (From Merck Index, 11th ed). framycetin : A tetracyclic antibacterial agent derived from neomycin, being a glycoside ester of neamine and neobiosamine B. | 4.8 | 1 | 1 | aminoglycoside | allergen; antibacterial drug; Escherichia coli metabolite |
| clorophene [no description available] | 2.07 | 1 | 0 | ||
| 2,4-dichlorophenol 2,4-dichlorophenol: RN given refers to unlabeled parent+ cpd; structure. 2,4-dichlorophenol : A dichlorophenol that is phenol carrying chloro substituents at positions 2 and 4. | 2.11 | 1 | 0 | dichlorophenol | |
| cyclonite cyclonite: explosive & convulsant; structure. 1,3,5-trinitro-1,3,5-triazinane : An N-nitro compound that is 1,3,5-triazinane in which all three of the hydrogens attached to the nitrogens have been replaced by nitro groups. It is widely used in both industrial and military explosives. | 2.03 | 1 | 0 | 1,3,5-triazinanes; N-nitro compound | explosive |
| syringaldehyde syringaldehyde: isolated from nonfermented fiber fractions of oat hulls and cottonseed hulls. syringaldehyde : A hydroxybenzaldehyde that is 4-hydroxybenzaldehyde substituted by methoxy groups at positions 3 and 5. Isolated from Pisonia aculeata and Panax japonicus var. major, it exhibits hypoglycemic activity. | 2 | 1 | 0 | dimethoxybenzene; hydroxybenzaldehyde | hypoglycemic agent; plant metabolite |
| ditiocarb Ditiocarb: A chelating agent that has been used to mobilize toxic metals from the tissues of humans and experimental animals. It is the main metabolite of DISULFIRAM.. diethyldithiocarbamic acid : A member of the class of dithiocarbamic acids that is diethylcarbamic acid in which both of the oxygens are replaced by sulfur. | 2.31 | 1 | 0 | dithiocarbamic acids | chelator; copper chelator |
| catechin Catechin: An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms.. catechin : Members of the class of hydroxyflavan that have a flavan-3-ol skeleton and its substituted derivatives.. rac-catechin : A racemate comprising equimolar amounts of (+)- and (-)-catechin. (+)-catechin : The (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. | 2.25 | 1 | 0 | catechin | antioxidant; plant metabolite |
| acridines Acridines: Compounds that include the structure of acridine.. acridine : A polycyclic heteroarene that is anthracene in which one of the central CH groups is replaced by a nitrogen atom. | 2.25 | 1 | 0 | acridines; mancude organic heterotricyclic parent; polycyclic heteroarene | genotoxin |
| indazoles Indazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES. | 4.8 | 1 | 1 | indazole | |
| adamantane Adamantane: A tricyclo bridged hydrocarbon. | 2.17 | 1 | 0 | adamantanes; polycyclic alkane | |
| thiazoles [no description available] | 4.8 | 1 | 1 | 1,3-thiazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene | |
| hydrazine diamine : Any polyamine that contains two amino groups. | 4.8 | 1 | 1 | azane; hydrazines | EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor |
| perfluorodecalin perfluorodecalin: RN given refers to parent cpd without isomeric designation. perfluorodecalin : A fluorocarbon that is decalin in which every hydrogen is replaced by fluorine. Capable of dissolving large quantities of oxygen, it has been used as the basis of an artificial blood substitute. | 2.05 | 1 | 0 | fluorocarbon | blood substitute; solvent |
| paraoxon [no description available] | 2.57 | 2 | 0 | aryl dialkyl phosphate; organophosphate insecticide | EC 3.1.1.7 (acetylcholinesterase) inhibitor; mouse metabolite |
| perfluorooctanoic acid perfluorooctanoic acid: RN given refers to parent cpd. perfluorooctanoic acid : A fluoroalkanoic acid that is perfluorinated octanoic acid. | 2.15 | 1 | 0 | fluoroalkanoic acid | carcinogenic agent; endocrine disruptor; environmental contaminant; surfactant; xenobiotic |
| hydantoins Hydantoins: Compounds based on imidazolidine dione. Some derivatives are ANTICONVULSANTS.. imidazolidine-2,4-dione : An imidazolidinone with oxo groups at position 2 and 4. | 4.8 | 1 | 1 | imidazolidine-2,4-dione | |
| bufotenin Bufotenin: A hallucinogenic serotonin analog found in frog or toad skins, mushrooms, higher plants, and mammals, especially in the brains, plasma, and urine of schizophrenics. Bufotenin has been used as a tool in CNS studies and misused as a psychedelic.. bufotenin : A tertiary amine that consists of N,N-dimethyltryptamine bearing an additional hydroxy substituent at position 5. | 1.97 | 1 | 0 | tertiary amine; tryptamine alkaloid | coral metabolite; hallucinogen |
| luminol Luminol: 5-Amino-2,3-dihydro-1,4-phthalazinedione. Substance that emits light on oxidation. It is used in chemical determinations. | 2.21 | 1 | 0 | ||
| gluconic acid gluconic acid: zinc gluconate has anti-inflammatory activity; RN given refers to (D)-isomer; all RRs refers to (D)-isomer unless otherwise noted. ketogluconic acid : A gluconic acid that contains a ketonic carbonyl group.. D-gluconic acid : A gluconic acid having D-configuration. | 2.52 | 2 | 0 | gluconic acid | chelator; Penicillium metabolite |
| copper gluconate Gluconates: Derivatives of gluconic acid (the structural formula HOCH2(CHOH)4COOH), including its salts and esters. | 2.52 | 2 | 0 | organic molecular entity | |
| 1,2-dichloroethylene 1,2-dichloroethylene: RN given refers to cpd without isomeric designation | 2.1 | 1 | 0 | chloroethenes | |
| 1,3-dichlorobenzene 1,3-dichlorobenzene : A dichlorobenzene carrying chloro substituents at positions 1 and 3. | 1.99 | 1 | 0 | dichlorobenzene | |
| gentian violet Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.. crystal violet : An organic chloride salt that is the monochloride salt of crystal violet cation. It has been used in creams for the topical treatment of bacterial and fungal infections, being effective against some Gram-positive bacteria (notably Staphylococcus species) and some pathogenic fungi (including Candida species) but use declined following reports of animal carcinogenicity. It has also been used for dying wood, silk, and paper, as well as a histological stain. | 2.53 | 2 | 0 | organic chloride salt | anthelminthic drug; antibacterial agent; antifungal agent; antiseptic drug; histological dye |
| glycylglycine [no description available] | 7.06 | 1 | 0 | dipeptide zwitterion; dipeptide | human metabolite |
| malachite green malachite green: RN given refers to parent cpd; structure. malachite green : An organic chloride salt that is the monochloride salt of malachite green cation. Used as a green-coloured dye, as a counter-stain in histology, and for its anti-fungal properties in aquaculture. | 2.6 | 1 | 0 | organic chloride salt | antibacterial agent; antifungal drug; carcinogenic agent; environmental contaminant; fluorochrome; histological dye; teratogenic agent |
| 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. | 2.1 | 1 | 0 | bis(azo) compound | |
| 2-naphthol orange Acid Orange II: structure in first source | 2.05 | 1 | 0 | ||
| manganese carbonate [no description available] | 1.97 | 1 | 0 | ||
| pentachlorobenzene pentachlorobenzene: structure. pentachlorobenzene : A member of the class of pentachlorobenzenes that is benzene in which five of the hydrogens are replaced by chlorines. Now classed as a persistent organic pollutant under the Stockholm Convention. | 1.99 | 1 | 0 | pentachlorobenzenes | persistent organic pollutant |
| 4,4'-bisphenol f 4,4'-bisphenol F: RN given refers to parent cpd. bisphenol F : A bisphenol that is methane in which two of the hydrogens have been replaced by 4-hydroxyphenyl groups. | 2.06 | 1 | 0 | bisphenol; diarylmethane | environmental food contaminant; xenoestrogen |
| 1,2,3,5-tetrachlorobenzene 1,2,3,5-tetrachlorobenzene : A tetrachlorobenzene carrying chloro groups at positions 1, 2, 3 and 5. | 1.99 | 1 | 0 | tetrachlorobenzene | |
| dimethyl methylphosphonate [no description available] | 7.05 | 1 | 0 | ||
| levonorgestrel Levonorgestrel: A synthetic progestational hormone with actions similar to those of PROGESTERONE and about twice as potent as its racemic or (+-)-isomer (NORGESTREL). It is used for contraception, control of menstrual disorders, and treatment of endometriosis. | 4.8 | 1 | 1 | 17beta-hydroxy steroid; 3-oxo-Delta(4) steroid; terminal acetylenic compound | contraceptive drug; female contraceptive drug; progestin; synthetic oral contraceptive |
| decabromobiphenyl ether decabromobiphenyl ether: a flame retardant. decabromodiphenyl ether : A polybromodiphenyl ether that is diphenyl ether in which all of the hydrogens have been replaced by bromines. | 2.48 | 2 | 0 | polybromodiphenyl ether | neurotoxin |
| calcium peroxide [no description available] | 5.17 | 2 | 1 | calcium oxides | |
| 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). | 2.17 | 1 | 0 | ||
| cadmium oxide cadmium oxide: causes severe lung damage; RN given refers to parent cpd | 2.05 | 1 | 0 | ||
| cadmium sulfide [no description available] | 2.25 | 1 | 0 | cadmium molecular entity | |
| 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. | 5.71 | 5 | 1 | zinc molecular entity | |
| molybdenum disulfide [no description available] | 2.61 | 2 | 0 | sulfide salt | |
| ferrous oxide [no description available] | 2.21 | 1 | 0 | iron oxide | |
| fucose Fucose: A six-member ring deoxysugar with the chemical formula C6H12O5. It lacks a hydroxyl group on the carbon at position 6 of the molecule.. L-fucopyranose : The pyranose form of L-fucose.. fucose : Any deoxygalactose that is deoxygenated at the 6-position. | 1.99 | 1 | 0 | fucopyranose; L-fucose | Escherichia coli metabolite; mouse metabolite |
| 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. | 1.97 | 1 | 0 | carbon oxoanion | |
| acetylthiocholine Acetylthiocholine: An agent used as a substrate in assays for cholinesterases, especially to discriminate among enzyme types. | 2.87 | 3 | 0 | ||
| iridium Iridium: A metallic element with the atomic symbol Ir, atomic number 77, and atomic weight 192.22. | 2.25 | 1 | 0 | cobalt group element atom; platinum group metal atom | |
| lanthanum [no description available] | 2.13 | 1 | 0 | f-block element atom; lanthanoid atom; scandium group element 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. | 9.22 | 76 | 1 | elemental 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. | 5.66 | 5 | 1 | elemental mercury; zinc group element atom | neurotoxin |
| molybdenum Molybdenum: A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.95. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase. | 5.41 | 3 | 1 | chromium group element atom | micronutrient |
| neptunium Neptunium: A radioactive element of the actinide metals family. It has the atomic symbol Np, and atomic number 93. | 2.1 | 1 | 0 | actinoid atom; f-block element atom | |
| osmium Osmium: A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os. | 2.08 | 1 | 0 | iron 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. | 2.57 | 2 | 0 | metal allergen; nickel group element atom; platinum group metal atom | |
| platinum Platinum: A heavy, soft, whitish metal, resembling tin, with atomic number 78, atomic weight 195.084, symbol Pt. It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as alutiae. | 8.2 | 5 | 0 | elemental 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. | 2.74 | 3 | 0 | actinoid atom; f-block 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. | 2.21 | 1 | 0 | cobalt 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. | 2.07 | 1 | 0 | iron group element atom; platinum group metal 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. | 6.61 | 14 | 1 | copper group element atom; elemental silver | Escherichia coli metabolite |
| 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. | 2.31 | 1 | 0 | f-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. | 2.47 | 2 | 0 | actinoid atom; f-block element atom | |
| titanium Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures. | 11.51 | 13 | 1 | titanium group element atom | |
| tungsten Tungsten: A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus. | 2.47 | 2 | 0 | chromium group element atom | micronutrient |
| argon Argon: A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used. | 2.04 | 1 | 0 | monoatomic argon; noble gas atom; p-block element atom | food packaging gas; neuroprotective agent |
| 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. | 4.3 | 17 | 0 | cadmium 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. | 2.42 | 2 | 0 | f-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. | 8.53 | 8 | 0 | chromium 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. | 2.31 | 1 | 0 | f-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. | 2.21 | 1 | 0 | f-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. | 2.25 | 1 | 0 | f-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. | 7.36 | 30 | 1 | copper group element atom; elemental gold | |
| 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. | 3.18 | 5 | 0 | actinoid atom; f-block element atom; monoatomic uranium | |
| yttrium Yttrium: An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers. | 2.17 | 1 | 0 | d-block element atom; rare earth metal atom; scandium group element atom | |
| zirconium Zirconium: A rather rare metallic element with atomic number 40, atomic weight 91.224, and symbol Zr. | 2.07 | 1 | 0 | titanium group element atom | |
| lead phosphate lead phosphate: RN given refers to unspecified MF | 1.96 | 1 | 0 | ||
| aluminum chloride Aluminum Chloride: A compound with the chemical formula AlCl3; the anhydrous salt is used as a catalyst in organic chemical synthesis, and hydrated salts are used topically as antiperspirants, and for the management of HYPERHYDROSIS. | 2.06 | 1 | 0 | aluminium coordination entity | Lewis acid |
| mercuric chloride Mercuric Chloride: Mercury chloride (HgCl2). A highly toxic compound that volatizes slightly at ordinary temperature and appreciably at 100 degrees C. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant.. mercury dichloride : A mercury coordination entity made up of linear triatomic molecules in which a mercury atom is bonded to two chlorines. Water-soluble, it is highly toxic. Once used in a wide variety of applications, including preserving wood and anatomical specimens, embalming and disinfecting, as an intensifier in photography, as a mordant for rabbit and beaver furs, and freeing gold from lead, its use has markedly declined as less toxic alternatives have been developed. | 1.96 | 1 | 0 | mercury coordination entity | sensitiser |
| galactosamine 2-amino-2-deoxy-D-galactopyranose : The pyranose form of D-galactosamine.. D-galactosamine : The D-stereoisomer of galactosamine. | 4.8 | 1 | 1 | D-galactosamine; primary amino compound | toxin |
| sodium nitrate sodium nitrate : The inorganic nitrate salt of sodium. | 2 | 1 | 0 | inorganic nitrate salt; inorganic sodium salt | fertilizer; NMR chemical shift reference compound |
| camptothecin NSC 100880: carboxylate (opened lactone) form of camptothecin; RN refers to (S)-isomer; structure given in first source | 8.01 | 3 | 0 | delta-lactone; pyranoindolizinoquinoline; quinoline alkaloid; tertiary alcohol | antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor; genotoxin; plant metabolite |
| ferric chloride ferric chloride: RN given refers to cpd with MF of Fe-Cl3; used to induce experimental arterial thrombosis to evaluate antithrombotic agents | 2.69 | 3 | 0 | iron coordination entity | astringent; Lewis acid |
| ferrous sulfate ferrous sulfate: Ferro-Gradumet is ferrous sulfate in controlled release form; RN given refers to Fe(+2)[1:1] salt. iron(2+) sulfate (anhydrous) : A compound of iron and sulfate in which the ratio of iron(2+) to sulfate ions is 1:1. Various hydrates occur naturally - most commonly the heptahydrate, which loses water to form the tetrahydrate at 57degreeC and the monohydrate at 65degreeC. | 2.25 | 1 | 0 | iron molecular entity; metal sulfate | reducing agent |
| potassium persulfate [no description available] | 2.1 | 1 | 0 | ||
| zinc sulfate Zinc Sulfate: A compound given in the treatment of conditions associated with zinc deficiency such as acrodermatitis enteropathica. Externally, zinc sulfate is used as an astringent in lotions and eye drops. (Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1995). zinc sulfate : A metal sulfate compound having zinc(2+) as the counterion. | 4.8 | 1 | 1 | metal sulfate; zinc molecular entity | fertilizer |
| potassium nitrate potassium nitrate: RN given refers to cpd with MF of K-HNO3; when combined with charcoal and sulfur it can form EXPLOSIVE AGENTS. potassium nitrate : The inorganic nitrate salt of potassium. | 2 | 1 | 0 | inorganic nitrate salt; potassium salt | fertilizer |
| sodium sulfate [no description available] | 2.13 | 1 | 0 | inorganic sodium salt | |
| sodium sulfite [no description available] | 2.1 | 1 | 0 | inorganic sodium salt; sulfite salt | food preservative; reducing agent |
| 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. | 5.05 | 2 | 1 | calcium phosphate | |
| sodium thiosulfate sodium thiosulfate: do not confuse synonym sodium hyposulfite with sodium hyposulfite, synonym for di-Na salt of dithionous acid. sodium thiosulfate : An inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio. | 2.1 | 1 | 0 | inorganic sodium salt | antidote to cyanide poisoning; antifungal drug; nephroprotective agent |
| chlorine Chlorine: An element with atomic symbol Cl, atomic number 17, and atomic weight 35, and member of the halogen family. | 7.89 | 3 | 0 | diatomic chlorine; gas molecular entity | bleaching agent |
| fluorosulfonic acid perfluorosulfonic acid: sulfonated tetrafluoroethylene-based fluoropolymer–copolymer | 2.5 | 2 | 0 | sulfur oxoacid | NMR solvent |
| 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. | 3.31 | 6 | 0 | elemental molecule; gas molecular entity; reactive oxygen species; triatomic oxygen | antiseptic drug; disinfectant; electrophilic reagent; greenhouse gas; mutagen; oxidising agent; tracer |
| chlorine dioxide chlorine dioxide: equal or superior to chlorine when used as wastewater disinfectant | 2.05 | 1 | 0 | chlorine dioxide | |
| cadmium chloride Cadmium Chloride: A cadmium halide in the form of colorless crystals, soluble in water, methanol, and ethanol. It is used in photography, in dyeing, and calico printing, and as a solution to precipitate sulfides. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed). cadmium dichloride : A cadmium coordination entity in which cadmium(2+) and Cl(-) ions are present in the ratio 2:1. Although considered to be ionic, it has considerable covalent character to its bonding. | 2.17 | 1 | 0 | cadmium coordination entity | |
| carbendazim carbendazim: carcinogen when combined with sodium nitrite; principle metabolite of thiophanate methyl & benomyl; structure. carbendazim : A member of the class of benzimidazoles that is 2-aminobenzimidazole in which the primary amino group is substituted by a methoxycarbonyl group. A fungicide, carbendazim controls Ascomycetes, Fungi Imperfecti, and Basidiomycetes on a wide variety of crops, including bananas, cereals, cotton, fruits, grapes, mushrooms, ornamentals, peanuts, sugarbeet, soybeans, tobacco, and vegetables. | 2.31 | 1 | 0 | benzimidazole fungicide; benzimidazoles; benzimidazolylcarbamate fungicide; carbamate ester | antifungal agrochemical; antinematodal drug; metabolite; microtubule-destabilising agent |
| 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. | 6.52 | 13 | 1 | titanium oxides | food colouring |
| tetradecanoylphorbol acetate Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.. phorbol ester : Esters of phorbol, originally found in croton oil (from Croton tiglium, of the family Euphorbiaceae). A number of phorbol esters possess activity as tumour promoters and activate the mechanisms associated with cell growth. Some of these are used in experiments as activators of protein kinase C.. phorbol 13-acetate 12-myristate : A phorbol ester that is phorbol in which the hydroxy groups at the cyclopropane ring juction (position 13) and the adjacent carbon (position 12) have been converted into the corresponding acetate and myristate esters. It is a major active constituent of the seed oil of Croton tiglium. It has been used as a tumour promoting agent for skin carcinogenesis in rodents and is associated with increased cell proliferation of malignant cells. However its function is controversial since a decrease in cell proliferation has also been observed in several cancer cell types. | 2.4 | 2 | 0 | acetate ester; diester; phorbol ester; tertiary alpha-hydroxy ketone; tetradecanoate ester | antineoplastic agent; apoptosis inducer; carcinogenic agent; mitogen; plant metabolite; protein kinase C agonist; reactive oxygen species generator |
| fluorides [no description available] | 3.18 | 5 | 0 | halide anion; monoatomic fluorine | |
| chromium chromium hexavalent ion: a human respiratory carcinogen | 7.99 | 4 | 0 | chromium cation; monoatomic hexacation | |
| iodine [no description available] | 2.81 | 3 | 0 | halide anion; monoatomic iodine | human metabolite |
| fenitrothion Fenitrothion: An organothiophosphate cholinesterase inhibitor that is used as an insecticide.. fenitrothion : An organic thiophosphate that is O,O-dimethyl O-phenyl phosphorothioate substituted by a methyl group at position 3 and a nitro group at position 4. | 7.6 | 1 | 0 | C-nitro compound; organic thiophosphate | acaricide; agrochemical; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; insecticide |
| 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. | 2.02 | 1 | 0 | benzenes; phenyl acetates | |
| tetrachloroethylene Tetrachloroethylene: A chlorinated hydrocarbon used as an industrial solvent and cooling liquid in electrical transformers. It is a potential carcinogen. | 2.01 | 1 | 0 | chlorocarbon; chloroethenes | nephrotoxic agent |
| pyrene pyrene: structure in Merck Index, 9th ed, #7746. pyrene : An ortho- and peri-fused polycyclic arene consisting of four fused benzene rings, resulting in a flat aromatic system. | 2 | 1 | 0 | ortho- and peri-fused polycyclic arene | fluorescent probe; persistent organic pollutant |
| transferrin Transferrin: An iron-binding beta1-globulin that is synthesized in the LIVER and secreted into the blood. It plays a central role in the transport of IRON throughout the circulation. A variety of transferrin isoforms exist in humans, including some that are considered markers for specific disease states. | 2.31 | 1 | 0 | ||
| alkenes [no description available] | 3.13 | 5 | 0 | ||
| azides Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3. | 2.07 | 1 | 0 | pseudohalide anion | mitochondrial respiratory-chain inhibitor |
| 3,4,3',4'-tetrachlorobiphenyl 3,4,3',4'-tetrachlorobiphenyl: RN given refers to parent cpd. 3,3',4,4'-tetrachlorobiphenyl : A tetrachlorobiphenyl that is biphenyl in which the hydrogens at position 3 and 4 on each phenyl group are replaced by chlorines. | 2.05 | 1 | 0 | dichlorobenzene; tetrachlorobiphenyl | |
| 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). | 7.76 | 2 | 0 | taxane diterpenoid; tetracyclic diterpenoid | antineoplastic agent; human metabolite; metabolite; microtubule-stabilising agent |
| 3,3',5,5'-tetramethylbenzidine T1023: radioprotective NO-Synthase Inhibitor | 3.82 | 9 | 0 | ||
| salmeterol xinafoate Salmeterol Xinafoate: A selective ADRENERGIC BETA-2 RECEPTOR agonist that functions as a BRONCHODILATOR when administered by inhalation. It is used to manage the symptoms of ASTHMA and CHRONIC OBSTRUCTIVE PULMONARY DISEASE. | 4.8 | 1 | 1 | naphthoic acid | |
| adenosine quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | 5.2 | 2 | 1 | adenosines; purines D-ribonucleoside | analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent |
| acridine orange Acridine Orange: A cationic cytochemical stain specific for cell nuclei, especially DNA. It is used as a supravital stain and in fluorescence cytochemistry. It may cause mutations in microorganisms.. acridine orange : Fluorescent dye useful for cell cycle determination. It is cell-permeable, and interacts with DNA and RNA by intercalation or electrostatic attractions respectively.. acridine orange free base : A member of the class of aminoacridines that is acridine carrying two dimethylamino substituents at positions 3 and 6. The hydrochloride salt is the fluorescent dye 'acridine orange', used for cell cycle determination. | 7.25 | 1 | 0 | aminoacridines; aromatic amine; tertiary amino compound | fluorochrome; histological dye |
| 2-butene 2-butene: RN given refers to cpd without isomeric designation | 2.04 | 1 | 0 | but-2-ene | |
| 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. | 4.8 | 1 | 1 | D-glucopyranose | epitope; mouse metabolite |
| epigallocatechin gallate epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis). (-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. | 2.25 | 1 | 0 | flavans; gallate ester; polyphenol | antineoplastic agent; antioxidant; apoptosis inducer; geroprotector; Hsp90 inhibitor; neuroprotective agent; plant metabolite |
| 10,10'-dimethyl-9,9'-biacridinium 10,10'-dimethyl-9,9'-biacridinium: chemoluminescent probe; RN given refers to dinitrate; Lucigenin refers to dinitrate | 2.25 | 1 | 0 | ||
| lissamine rhodamine b lissamine rhodamine B: RN given refers to parent cpd; Lissamine Rhodamine B refers to Na salt | 2.01 | 1 | 0 | ||
| glutathione disulfide Glutathione Disulfide: A GLUTATHIONE dimer formed by a disulfide bond between the cysteine sulfhydryl side chains during the course of being oxidized. | 2.31 | 1 | 0 | glutathione derivative; organic disulfide | Escherichia coli metabolite; mouse metabolite |
| cephalosporin c cephalosporin C: RN given refers to parent cpd; structure in Merck, 9th ed, #1937. cephalosporin C : A cephalosporin antibiotic carrying a 3-acetoxymethyl substituent and a 6-oxo-N(6)-L-lysino group at position 7. | 2.59 | 2 | 0 | cephalosporin | fungal metabolite |
| naphthalimides Naphthalimides: Compounds with three fused rings that appear like a naphthalene fused to piperidone or like a benz(de)isoquinoline-1,3-dione (not to be confused with BENZYLISOQUINOLINES which have a methyl separating the naphthyl from the benzyl rings). Members are CYTOTOXINS. | 2.17 | 1 | 0 | ||
| 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) | 4.8 | 1 | 1 | 2-deoxy-2-((18)F)fluoro-D-glucose; 2-deoxy-2-fluoro-aldehydo-D-glucose | |
| 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. | 2.25 | 1 | 0 | cerium molecular entity; metal oxide | |
| 2,5-furandicarboxylic acid furan-2,5-dicarboxylic acid : A member of the class of furans carrying two carboxy substituents at positions 2 and 5. | 2.58 | 2 | 0 | dicarboxylic acid; furans | human urinary metabolite |
| fibrinogen Fibrinogen: Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products.. D-iditol : The D-enantiomer of iditol. | 4.8 | 1 | 1 | iditol | fungal metabolite |
| goethite [no description available] | 2.55 | 2 | 0 | ||
| glucuronic acid Glucuronic Acid: A sugar acid formed by the oxidation of the C-6 carbon of GLUCOSE. In addition to being a key intermediate metabolite of the uronic acid pathway, glucuronic acid also plays a role in the detoxification of certain drugs and toxins by conjugating with them to form GLUCURONIDES.. D-glucuronic acid : The D-enantiomer of glucuronic acid.. D-glucopyranuronic acid : A D-glucuronic acid in cyclic pyranose form. | 2.05 | 1 | 0 | D-glucuronic acid | algal metabolite |
| cellulose sulfate cellulose sulfate: RN given refers to cpd with unknown MF; vaginal gel being developed as both a contraceptive and blockage to STD somewhat like nonoxynol-9 | 2.05 | 1 | 0 | ether; flavonoids | |
| 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. | 3.19 | 5 | 0 | cobalt group element atom; metal allergen | micronutrient |
| fingolimod hydrochloride Fingolimod Hydrochloride: A sphingosine-derivative and IMMUNOSUPPRESSIVE AGENT that blocks the migration and homing of LYMPHOCYTES to the CENTRAL NERVOUS SYSTEM through its action on SPHINGOSINE 1-PHOSPHATE RECEPTORS. It is used in the treatment of MULTIPLE SCLEROSIS.. fingolimod hydrochloride : The hydrochloride salt of 2-amino-2-[2-(4-octylphenyl) ethyl]-1,3-propanediol (fingolimod). | 2.31 | 1 | 0 | hydrochloride | immunosuppressive agent; prodrug; sphingosine-1-phosphate receptor agonist |
| homoorientin homoorientin: isolated from Swertia japonica; structure given in first source | 4.8 | 1 | 1 | flavone C-glycoside; tetrahydroxyflavone | antineoplastic agent; radical scavenger |
| 1,5(10)-estradiene-3,4,17-trione 1,5(10)-estradiene-3,4,17-trione: structure given in first source. estra-1,5(10)-diene-3,4,17-trione : An o-quinone resulting from the formal oxidation of the dihydroxyphenyl moiety of 4-hydroxyestrone. | 1.96 | 1 | 0 | 17-oxo steroid; 3-oxo-Delta(1) steroid; orthoquinones | human metabolite |
| caprylates Caprylates: Derivatives of caprylic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain a carboxy terminated eight carbon aliphatic structure.. octanoate : A straight-chain saturated fatty acid anion that is the conjugate base of octanoic acid (caprylic acid); believed to block adipogenesis. | 2.15 | 1 | 0 | fatty acid anion 8:0; straight-chain saturated fatty acid anion | human metabolite; Saccharomyces cerevisiae metabolite |
| 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. | 2.17 | 1 | 0 | azamacrocycle | chelator; copper chelator |
| phenoxy radical phenoxy radical : An organic radical generated from phenol. | 2.17 | 1 | 0 | organic radical | |
| peroxynitrous acid Peroxynitrous Acid: A potent oxidant synthesized by the cell during its normal metabolism. Peroxynitrite is formed from the reaction of two free radicals, NITRIC OXIDE and the superoxide anion (SUPEROXIDES). | 2.43 | 2 | 0 | nitrogen oxoacid | |
| gefitinib [no description available] | 2.41 | 1 | 0 | aromatic ether; monochlorobenzenes; monofluorobenzenes; morpholines; quinazolines; secondary amino compound; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist |
| 4-carboxyfluorescein [no description available] | 2.11 | 1 | 0 | monocarboxylic acid | fluorochrome |
| methotrexate [no description available] | 2.31 | 1 | 0 | dicarboxylic acid; monocarboxylic acid amide; pteridines | abortifacient; antimetabolite; antineoplastic agent; antirheumatic drug; dermatologic drug; DNA synthesis inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; immunosuppressive agent |
| 4-mercaptobutyramidine [no description available] | 2.13 | 1 | 0 | ||
| quinone methide quinone methide: intermediate in eumelanin biosynthesis; structure given in first source. quinomethane : A methylidenecyclohexadienone, formally derived from a benzoquinone by replacement of one of the quinone oxygens by a methylidene group. | 2.44 | 2 | 0 | quinomethane | |
| cerium phosphate cerium phosphate: intermediate product in cerium-based technique for staining lysosomal enzymes | 1.96 | 1 | 0 | ||
| singlet oxygen Singlet Oxygen: An excited state of molecular oxygen generated photochemically or chemically. Singlet oxygen reacts with a variety of biological molecules such as NUCLEIC ACIDS; PROTEINS; and LIPIDS; causing oxidative damages. | 2.9 | 3 | 0 | chalcogen; monoatomic oxygen; nonmetal atom | macronutrient |
| peroxymonosulfate peroxymonosulfate: oxidizing agent in prevention of tooth discoloration; RN given refers to ion(2-) | 2.55 | 2 | 0 | sulfur oxide; sulfur oxoanion | |
| fenton's reagent Fenton's reagent: used for oxidizing sugars & alcohols | 2.05 | 1 | 0 | ||
| 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). | 4.8 | 1 | 1 | amino acid zwitterion; angiotensin II | human metabolite |
| lignin Lignin: The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed). lignin : A polyphenylpropanoid derived from three monolignol monomers: trans-p-coumaryl alcohol, coniferol and trans-sinapyl alcohol. There is extensive cross-linking and no defined primary structure. | 2.82 | 3 | 0 | ||
| organophosphonates hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 5.53 | 4 | 1 | divalent inorganic anion; phosphite ion | |
| nickel monoxide [no description available] | 2.08 | 1 | 0 | ||
| lenalidomide [no description available] | 4.8 | 1 | 1 | aromatic amine; dicarboximide; isoindoles; piperidones | angiogenesis inhibitor; antineoplastic agent; immunomodulator |
| 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. | 2.58 | 2 | 0 | arenecarbaldehyde; furans; primary alcohol | indicator; Maillard reaction product |
| bortezomib [no description available] | 4.8 | 1 | 1 | amino acid amide; L-phenylalanine derivative; pyrazines | antineoplastic agent; antiprotozoal drug; protease inhibitor; proteasome inhibitor |
| 2,3-diaminophenazine 2,3-diaminophenazine: product form horseradish peroxidase catalyzed oxidation of o-phenylenediamine | 2.21 | 1 | 0 | ||
| permanganate [no description available] | 3.86 | 11 | 0 | manganese oxoacid | |
| ochratoxin a ochratoxin A: structure in first source & in Merck, 9th ed, #6549. ochratoxin A : A phenylalanine derivative resulting from the formal condensation of the amino group of L-phenylalanine with the carboxy group of (3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-carboxylic acid (ochratoxin alpha). It is among the most widely occurring food-contaminating mycotoxins, produced by Aspergillus ochraceus, Aspergillus carbonarius and Penicillium verrucosum. | 2.63 | 2 | 0 | isochromanes; monocarboxylic acid amide; N-acyl-L-phenylalanine; organochlorine compound; phenylalanine derivative | Aspergillus metabolite; calcium channel blocker; carcinogenic agent; mycotoxin; nephrotoxin; Penicillium metabolite; teratogenic agent |
| betadex beta-Cyclodextrins: Cyclic GLUCANS consisting of seven (7) glucopyranose units linked by 1,4-glycosidic bonds. | 2.17 | 1 | 0 | cyclodextrin | |
| resveratrol trans-resveratrol : A resveratrol in which the double bond has E configuration. | 7.41 | 1 | 0 | resveratrol | antioxidant; phytoalexin; plant metabolite; quorum sensing inhibitor; radical scavenger |
| retinol Vitamin A: Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products.. vitamin A : Any member of a group of fat-soluble retinoids produced via metabolism of provitamin A carotenoids that exhibit biological activity against vitamin A deficiency. Vitamin A is involved in immune function, vision, reproduction, and cellular communication.. all-trans-retinol : A retinol in which all four exocyclic double bonds have E- (trans-) geometry.. retinol : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraen-1-ol substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified). | 1.92 | 1 | 0 | retinol; vitamin A | human metabolite; mouse metabolite; plant metabolite |
| 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. | 2.25 | 1 | 0 | microcystin | bacterial metabolite; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; environmental contaminant; xenobiotic |
| ferric hydroxide ferric hydroxide: additional RNs for iron hydroxide oxide: 11115-92-7, 20344-49-4; RN for unspecified iron hydroxide: 11113-66-9 | 3.02 | 4 | 0 | ||
| cocaine Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. | 7.52 | 2 | 0 | benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid | adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic |
| riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms). | 2.07 | 1 | 0 | flavin; vitamin B2 | anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite |
| potassium permanganate Potassium Permanganate: Permanganic acid (HMnO4), potassium salt. A highly oxidative, water-soluble compound with purple crystals, and a sweet taste. (From McGraw-Hill Dictionary of Scientific and Technical Information, 4th ed) | 9.1 | 14 | 0 | ||
| 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. | 2.58 | 2 | 0 | one-carbon compound; organic sodium salt | antacid; food anticaking agent |
| potassium nitrite [no description available] | 2.03 | 1 | 0 | ||
| retinaldehyde Retinaldehyde: A diterpene derived from the carotenoid VITAMIN A which functions as the active component of the visual cycle. It is the prosthetic group of RHODOPSIN (i.e., covalently bonded to ROD OPSIN as 11-cis-retinal). When stimulated by visible light, rhodopsin transforms this cis-isomer of retinal to the trans-isomer (11-trans-retinal). This transformation straightens-out the bend of the retinal molecule and causes a change in the shape of rhodopsin triggering the visual process. A series of energy-requiring enzyme-catalyzed reactions convert the 11-trans-retinal back to the cis-isomer.. all-trans-retinal : A retinal in which all four exocyclic double bonds have E- (trans-) geometry. | 1.92 | 1 | 0 | retinal; vitamin A | gap junctional intercellular communication inhibitor; human metabolite; mouse metabolite |
| pyrophosphate Diphosphates: Inorganic salts of phosphoric acid that contain two phosphate groups. | 2.5 | 2 | 0 | diphosphate ion | |
| sesquiterpenes [no description available] | 2.04 | 1 | 0 | ||
| mercaptopurine Mercaptopurine: An antimetabolite antineoplastic agent with immunosuppressant properties. It interferes with nucleic acid synthesis by inhibiting purine metabolism and is used, usually in combination with other drugs, in the treatment of or in remission maintenance programs for leukemia.. purine-6-thiol : A thiol that is the tautomer of mercaptopurine.. mercaptopurine : A member of the class of purines that is 6,7-dihydro-1H-purine carrying a thione group at position 6. An adenine analogue, it is used in the treatment of acute lymphocytic leukemia (ALL), chronic myeloid leukemia (CML), Crohn's disease, and ulcerative colitis. | 2.31 | 1 | 0 | aryl thiol; purines; thiocarbonyl compound | anticoronaviral agent; antimetabolite; antineoplastic agent |
| caffeic acid trans-caffeic acid : The trans-isomer of caffeic acid. | 2.07 | 1 | 0 | caffeic acid | geroprotector; mouse metabolite |
| curcumin Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.. curcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa. | 2.6 | 1 | 0 | aromatic ether; beta-diketone; diarylheptanoid; enone; polyphenol | anti-inflammatory agent; antifungal agent; antineoplastic agent; biological pigment; contraceptive drug; dye; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; EC 1.1.1.21 (aldehyde reductase) inhibitor; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor; EC 1.8.1.9 (thioredoxin reductase) inhibitor; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor; EC 3.5.1.98 (histone deacetylase) inhibitor; flavouring agent; food colouring; geroprotector; hepatoprotective agent; immunomodulator; iron chelator; ligand; lipoxygenase inhibitor; metabolite; neuroprotective agent; nutraceutical; radical scavenger |
| thiohydantoins Thiohydantoins: Sulfur analogs of hydantoins with one or both carbonyl groups replaced by thiocarbonyl groups. | 4.8 | 1 | 1 | ||
| chlorogenic acid caffeoylquinic acid: Antiviral Agent; structure in first source. chlorogenate : A monocarboxylic acid anion that is the conjugate base of chlorogenic acid; major species at pH 7.3. | 4.8 | 1 | 1 | cinnamate ester; tannin | food component; plant metabolite |
| thiourea Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur. | 4.8 | 1 | 1 | one-carbon compound; thioureas; ureas | antioxidant; chromophore |
| 4-thiopyridine 4-thiopyridine: RN given refers to 4-thiopyridine cpd | 2.25 | 1 | 0 | ||
| ferric ferrocyanide ferric ferrocyanide: antidote to thallium poisoning; RN given refers to Fe(+3)[3:4] salt; structure | 2.8 | 3 | 0 | ||
| tungsten carbide tungsten carbide: RN given refers to cpd with unspecified MF | 2 | 1 | 0 | ||
| laccase Laccase: A copper-containing oxidoreductase enzyme that catalyzes the oxidation of 4-benzenediol to 4-benzosemiquinone. It also has activity towards a variety of O-quinols and P-quinols. It primarily found in FUNGI and is involved in LIGNIN degradation, pigment biosynthesis and detoxification of lignin-derived products. | 2 | 1 | 0 | ||
| lithium Lithium: An element in the alkali metals family. It has the atomic symbol Li, atomic number 3, and atomic weight [6.938; 6.997]. Salts of lithium are used in treating BIPOLAR DISORDER. | 8.68 | 9 | 0 | alkali metal atom | |
| cobaltous chloride cobaltous chloride: RN given refers to unlabeled cpd; RN in Chemline for cobalt trichloride: 10241-04-0; RN for 60-labeled cpd: 14543-09-0; RN for 57-labeled cpd: 164113-89-1; RN for 58-labeled cpd: 29377-09-1; structure. cobalt dichloride : A cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is chloride. It is used as an indicator for water in desiccants. | 2.06 | 1 | 0 | cobalt salt; inorganic chloride | allergen; calcium channel blocker; sensitiser; two-colour indicator |
| nitrogen dioxide Nitrogen Dioxide: Nitrogen oxide (NO2). A highly poisonous gas. Exposure produces inflammation of lungs that may only cause slight pain or pass unnoticed, but resulting edema several days later may cause death. (From Merck, 11th ed) It is a major atmospheric pollutant that is able to absorb UV light that does not reach the earth's surface. | 1.96 | 1 | 0 | nitrogen oxide | |
| 9-diazomethylanthracene 9-diazomethylanthracene: RN & N1 from 9th CI Form Index | 1.96 | 1 | 0 | ||
| naphthoquinones Naphthoquinones: Naphthalene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups. | 2.15 | 1 | 0 | ||
| triacetone triperoxide triacetone triperoxide: very sensitive explosive | 2.25 | 1 | 0 | ||
| luteolin [no description available] | 4.8 | 1 | 1 | 3'-hydroxyflavonoid; tetrahydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; c-Jun N-terminal kinase inhibitor; EC 2.3.1.85 (fatty acid synthase) inhibitor; immunomodulator; nephroprotective agent; plant metabolite; radical scavenger; vascular endothelial growth factor receptor antagonist |
| calcitriol dihydroxy-vitamin D3: as a major in vitro metabolite of 1alpha,25-dihydroxyvitamin D3, produced in primary cultures of neonatal human keratinocytes | 2.25 | 1 | 0 | D3 vitamins; hydroxycalciol; triol | antineoplastic agent; antipsoriatic; bone density conservation agent; calcium channel agonist; calcium channel modulator; hormone; human metabolite; immunomodulator; metabolite; mouse metabolite; nutraceutical |
| beta carotene beta Carotene: A carotenoid that is a precursor of VITAMIN A. Beta carotene is administered to reduce the severity of photosensitivity reactions in patients with erythropoietic protoporphyria (PORPHYRIA, ERYTHROPOIETIC).. provitamin A : A provitamin that can be converted into vitamin A by enzymes from animal tissues. | 1.92 | 1 | 0 | carotenoid beta-end derivative; cyclic carotene | antioxidant; biological pigment; cofactor; ferroptosis inhibitor; human metabolite; mouse metabolite; plant metabolite; provitamin A |
| hydromorphone Hydromorphone: An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.. hydromorphone : A morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class. | 2.01 | 1 | 0 | morphinane alkaloid; organic heteropentacyclic compound | mu-opioid receptor agonist; opioid analgesic |
| fluticasone Fluticasone: A STEROID with GLUCOCORTICOID RECEPTOR activity that is used to manage the symptoms of ASTHMA; ALLERGIC RHINITIS, and ATOPIC DERMATITIS.. fluticasone : A trifluorinated corticosteroid used in the form of its propionate ester for treatment of allergic rhinitis. | 4.8 | 1 | 1 | 11beta-hydroxy steroid; 17alpha-hydroxy steroid; 3-oxo-Delta(4) steroid; corticosteroid; fluorinated steroid; thioester | anti-allergic agent; anti-asthmatic drug |
| magnesium trisilicate magnesium trisilicate: RN given refers to parent cpd | 2.21 | 1 | 0 | ||
| lead Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb. | 4.44 | 20 | 0 | carbon group element atom; elemental lead; metal atom | neurotoxin |
| 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. | 2.41 | 2 | 0 | alkali metal atom | |
| aluminum Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.41 | 2 | 0 | boron group element atom; elemental aluminium; metal atom | |
| strontium Strontium: An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62. | 4.9 | 2 | 1 | alkaline earth metal atom | |
| bismuth Bismuth: A metallic element that has the atomic symbol Bi, and atomic number 83. Its principal isotope is Bismuth 209. | 5.34 | 3 | 1 | metal 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). | 3.06 | 4 | 0 | boron 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) | 8.78 | 10 | 0 | metalloid atom; pnictogen | micronutrient |
| sulfur Sulfur: An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine. | 10.75 | 5 | 1 | chalcogen; nonmetal atom | macronutrient |
| acetyl acetonate [no description available] | 2.03 | 1 | 0 | ||
| 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. | 3.33 | 6 | 0 | cysteinium | fundamental metabolite |
| silicon Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086]. | 2.21 | 1 | 0 | carbon group element atom; metalloid atom; nonmetal atom | |
| 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid: chromogen in glucose oxidase-peroxidase method for determining serum glucose; used in free radical scavenging assays; structure in first source | 2.31 | 1 | 0 | ||
| phytochlorin phytochlorin: RN given refers to (2S-trans)-isomer; structure given in the first source | 5.42 | 15 | 0 | ||
| 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. | 2.6 | 1 | 0 | chalcogen; 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. | 2.21 | 1 | 0 | chalcogen; metalloid atom | |
| radium Radium: A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra and atomic number 88. Radium is the product of the disintegration of URANIUM and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma-rays in radiotherapy, particularly BRACHYTHERAPY. | 7.94 | 4 | 0 | alkaline earth metal atom | |
| oxalates Oxalates: Derivatives of OXALIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are derived from the ethanedioic acid structure. | 2.04 | 1 | 0 | ||
| clinoptilolite clinoptilolite: clinoptilolite was SY to zeolite (NM); use zeolites (NM) to search through 1993; RN is for cpd with unknown MF | 2.06 | 1 | 0 | ||
| antimycin a Antimycin A: An antibiotic substance produced by Streptomyces species. It inhibits mitochondrial respiration and may deplete cellular levels of ATP. Antimycin A1 has been used as a fungicide, insecticide, and miticide. (From Merck Index, 12th ed). antimycin A : A nine-membered bis-lactone having methyl substituents at the 2- and 6-positions, an n-hexyl substituent at the 8-position, an acyloxy substituent at the 7-position and an aroylamido substituent at the 3-position. It is produced by Streptomyces bacteria and has found commercial use as a fish poison. | 1.96 | 1 | 0 | amidobenzoic acid | |
| napyradiomycin a1 napyradiomycin A1: from culture broth Chainia rubra MG802-AF1; structure given in first source | 2.15 | 1 | 0 | menaquinones | |
| morphinans Morphinans: Compounds based on a partially saturated iminoethanophenanthrene, which can be described as ethylimino-bridged benzo-decahydronaphthalenes. They include some of the OPIOIDS found in PAPAVER that are used as ANALGESICS. | 2.01 | 1 | 0 | isoquinoline alkaloid fundamental parent; morphinane alkaloid | |
| ferrihydrite ferric oxyhydroxide: an antiferromagnetic material; constitutes the core of natural ferritin; mol form 5Fe2O3.9H2O | 2.78 | 3 | 0 | ||
| mocetinostat mocetinostat: undergoing phase II clinical trials for treatment of cancer. mocetinostat : A benzamide obtained by formal condensation of the carboxy group of 4-({[4-(pyridin-3-yl)pyrimidin-2-yl]amino}methyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an orally active and isotype-selective HDAC inhibitor which exhibits antitumour activity (IC50 = 0.15, 0.29, 1.66 and 0.59 muM for HDAC1, HDAC2, HDAC3 and HDAC11). | 3.01 | 4 | 0 | aminopyrimidine; benzamides; pyridines; secondary amino compound; secondary carboxamide; substituted aniline | antineoplastic agent; apoptosis inducer; autophagy inducer; cardioprotective agent; EC 3.5.1.98 (histone deacetylase) inhibitor; hepatotoxic agent |
| zeolites [no description available] | 2.06 | 1 | 0 | ||
| aluminum oxide Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. | 6.05 | 8 | 1 | ||
| ribose ribopyranose : The pyranose form of ribose. | 2.06 | 1 | 0 | D-ribose; ribopyranose | |
| carfilzomib [no description available] | 4.8 | 1 | 1 | epoxide; morpholines; tetrapeptide | antineoplastic agent; proteasome inhibitor |
| empagliflozin [no description available] | 4.8 | 1 | 1 | aromatic ether; C-glycosyl compound; monochlorobenzenes; tetrahydrofuryl ether | hypoglycemic agent; sodium-glucose transport protein subtype 2 inhibitor |
| indocyanine green Indocyanine Green: A tricarbocyanine dye that is used diagnostically in liver function tests and to determine blood volume and cardiac output. | 2.31 | 1 | 0 | 1,1-diunsubstituted alkanesulfonate; benzoindole; cyanine dye | |
| acid phosphatase Acid Phosphatase: An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.2. | 7.42 | 2 | 0 | ||
| 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. | 2.46 | 2 | 0 | ||
| oligonucleotides [no description available] | 2.1 | 1 | 0 | ||
| cellulose DEAE-Cellulose: Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications. | 6.08 | 8 | 1 | glycoside | |
| chitosan [no description available] | 3.62 | 8 | 0 | ||
| methyl orange methyl orange: indictor of pH with strong acids & bases; also used as reagent to form ion pairs with, and thereby isolate, certain compounds from biological material; minor descriptor (75-86); on-line & INDEX MEDICUS search AZO COMPOUNDS (75-86); file maintained to Azo cpds | 7.6 | 1 | 0 | ||
| chiniofon Hydroxyquinolines: The 8-hydroxy derivatives inhibit various enzymes and their halogenated derivatives, though neurotoxic, are used as topical anti-infective agents, among other uses. | 1.96 | 1 | 0 | ||
| niraparib niraparib: structure in first source. niraparib : A 2-[4-(piperidin-3-yl)phenyl]-2H-indazole-7-carboxamide that has S-configuration. It is a potent inhibitor of PARP1 and PARP2 (IC50 of 3.8 and 2.1 nM, respectively) and approved as a first-line maintenance treatment for women with advanced ovarian cancer after responding to platinum-based chemotherapy. | 4.8 | 1 | 1 | 2-[4-(piperidin-3-yl)phenyl]-2H-indazole-7-carboxamide | antineoplastic agent; apoptosis inducer; EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor; radiosensitizing agent |
| plx4032 [no description available] | 4.8 | 1 | 1 | aromatic ketone; difluorobenzene; monochlorobenzenes; pyrrolopyridine; sulfonamide | antineoplastic agent; B-Raf inhibitor |
| piperidines Piperidines: A family of hexahydropyridines. | 4.8 | 1 | 1 | ||
| 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. | 4.31 | 18 | 0 | ascorbic acid; vitamin C | coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent |
| tetracycline Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.. tetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria. | 2.57 | 2 | 0 | ||
| chlortetracycline Chlortetracycline: A TETRACYCLINE with a 7-chloro substitution.. chlortetracycline : A member of the class of tetracyclines with formula C22H23ClN2O8 isolated from Streptomyces aureofaciens. | 2.46 | 2 | 0 | ||
| 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. | 2.31 | 1 | 0 | ||
| ascorbic acid 2-o-glucoside ascorbic acid 2-O-glucoside: has same vitamin C activity as L-ascorbic acid | 2.21 | 1 | 0 | glycoside | |
| byl719 [no description available] | 4.8 | 1 | 1 | proline derivative | |
| kaolinite Kaolin: The most common mineral of a group of hydrated aluminum silicates, approximately H2Al2Si2O8-H2O. It is prepared for pharmaceutical and medicinal purposes by levigating with water to remove sand, etc. (From Merck Index, 11th ed) The name is derived from Kao-ling (Chinese: high ridge), the original site. (From Grant & Hackh's Chemical Dictionary, 5th ed). kaolin : An aluminosilicate soft white mineral named after the hill in China (Kao-ling) from which it was mined for centuries. In its natural state kaolin is a white, soft powder consisting principally of the mineral kaolinite, and varying amounts of other minerals such as muscovite, quartz, feldspar, and anatase. It is used in the manufacture of china and porcelain and also widely used in the production of paper, rubber, paint, drying agents, and many other products. | 3.02 | 4 | 0 | aluminosilicate mineral; mixture | antidiarrhoeal drug; excipient |
| clay Clay: A naturally-occurring rock or soil constituent characterized by particles with a diameter of less than 0.005 mm. It is composed primarily of hydrous aluminum silicates, trace amounts of metal OXIDES, and organic matter. | 2.03 | 1 | 0 | ||
| lead radioisotopes Lead Radioisotopes: Unstable isotopes of lead that decay or disintegrate emitting radiation. Pb atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes. | 2.06 | 1 | 0 | ||
| nitrophenols Nitrophenols: PHENOLS carrying nitro group substituents. | 2.75 | 3 | 0 | ||
| 2-methylisoborneol 2-methylisoborneol: structure. 2-methylisoborneol : An bornane monoterpenoid comprising isoborneol carrying a 2-methyl substituent (the 1R,2R,4R-diastereomer). | 2.17 | 1 | 0 | ||
| orabase Orabase: used in therapy of oral mucosal ulcers | 2.11 | 1 | 0 | ||
| guanosine monophosphate Guanosine Monophosphate: A guanine nucleotide containing one phosphate group esterified to the sugar moiety and found widely in nature.. guanosine 5'-monophosphate : A purine ribonucleoside 5'-monophosphate having guanine as the nucleobase. | 2.06 | 1 | 0 | guanosine 5'-phosphate; purine ribonucleoside 5'-monophosphate | biomarker; Escherichia coli metabolite; metabolite; mouse metabolite |
| guanine [no description available] | 2.05 | 1 | 0 | 2-aminopurines; oxopurine; purine nucleobase | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| sapropterin sapropterin: RN given refers to parent cpd; co-factor required for catalytic activity of nitric oxide synthases. (6R)-5,6,7,8-tetrahydrobiopterin : A 5,6,7,8-tetrahydrobiopterin in which the stereocentre at position 6 has R-configuration.. sapropterin : A tetrahydropterin that is 2-amino-5,6,7,8-tetrahydropteridin-4(3H)-one in which a hydrogen at position 6 is substituted by a 1,2-dihydroxypropyl group (6R,1'R,2'S-enantiomer). | 1.98 | 1 | 0 | 5,6,7,8-tetrahydrobiopterin | coenzyme; cofactor; diagnostic agent; human metabolite |
| folic acid folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin. | 2.21 | 1 | 0 | folic acids; N-acyl-amino acid | human metabolite; mouse metabolite; nutrient |
| allopurinol Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.. allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring. | 1.97 | 1 | 0 | nucleobase analogue; organic heterobicyclic compound | antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger |
| acid chrome blue k acid chrome blue K: a spectrophotometric reagent; structure in first source | 2.05 | 1 | 0 | ||
| manganese-zinc ferrite [no description available] | 2.03 | 1 | 0 | ||
| acetylcellulose acetylcellulose: coating compound. cellulose acetate : A glucan derivative obtained through the esterification of cellulose by acetic anhydride or acetic acid, resulting in the substitution of some of the hydroxy groups of cellulose by acetyl groups. It is used in a variety of applications including base material for photographic film, clothing, membrane filters, coatings, food packaging, and as a frame material for eyeglasses. | 2.13 | 1 | 0 | ||
| 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 | 1 | 0 | ||
| leptin Leptin: A 16-kDa peptide hormone secreted from WHITE ADIPOCYTES. Leptin serves as a feedback signal from fat cells to the CENTRAL NERVOUS SYSTEM in regulation of food intake, energy balance, and fat storage. | 4.8 | 1 | 1 |
| Condition | Indicated | Relationship Strength | Studies | Trials |
|---|---|---|---|---|
| Anoxemia [description not available] | 0 | 3.13 | 4 | 0 |
| Benign Neoplasms [description not available] | 0 | 8.52 | 37 | 1 |
| Animal Mammary Carcinoma [description not available] | 0 | 2.31 | 1 | 0 |
| Hypoxia Sub-optimal OXYGEN levels in the ambient air of living organisms. | 0 | 3.13 | 4 | 0 |
| 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. | 0 | 8.52 | 37 | 1 |
| Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply. | 0 | 2.31 | 1 | 0 |
| Atherogenesis [description not available] | 0 | 2.66 | 2 | 0 |
| Chronic Kidney Diseases [description not available] | 0 | 2.31 | 1 | 0 |
| Atherosclerosis A thickening and loss of elasticity of the walls of ARTERIES that occurs with formation of ATHEROSCLEROTIC PLAQUES within the ARTERIAL INTIMA. | 0 | 2.66 | 2 | 0 |
| Renal Insufficiency, Chronic Conditions in which the KIDNEYS perform below the normal level for more than three months. Chronic kidney insufficiency is classified by five stages according to the decline in GLOMERULAR FILTRATION RATE and the degree of kidney damage (as measured by the level of PROTEINURIA). The most severe form is the end-stage renal disease (CHRONIC KIDNEY FAILURE). (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002) | 0 | 2.31 | 1 | 0 |
| Rheumatoid Arthritis [description not available] | 0 | 2.31 | 1 | 0 |
| Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated. | 0 | 2.31 | 1 | 0 |
| ER-Negative PR-Negative HER2-Negative Breast Cancer [description not available] | 0 | 3.18 | 4 | 0 |
| Experimental Mammary Neoplasms [description not available] | 0 | 3.84 | 9 | 0 |
| Triple Negative Breast Neoplasms Breast neoplasms that do not express ESTROGEN RECEPTORS; PROGESTERONE RECEPTORS; and do not overexpress the NEU RECEPTOR/HER-2 PROTO-ONCOGENE PROTEIN. | 0 | 3.18 | 4 | 0 |
| Acute Confusional Senile Dementia [description not available] | 0 | 3.22 | 3 | 0 |
| 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) | 0 | 3.22 | 3 | 0 |
| Carcinoma, Non-Small Cell Lung [description not available] | 0 | 5.07 | 2 | 1 |
| Cancer of Lung [description not available] | 0 | 5.52 | 5 | 1 |
| 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. | 0 | 5.07 | 2 | 1 |
| Lung Neoplasms Tumors or cancer of the LUNG. | 0 | 5.52 | 5 | 1 |
| Glial Cell Tumors [description not available] | 0 | 6.65 | 12 | 1 |
| 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) | 0 | 6.65 | 12 | 1 |
| Colorectal Cancer [description not available] | 0 | 7.94 | 3 | 0 |
| 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. | 0 | 2.94 | 3 | 0 |
| Neuroblastoma A common neoplasm of early childhood arising from neural crest cells in the sympathetic nervous system, and characterized by diverse clinical behavior, ranging from spontaneous remission to rapid metastatic progression and death. This tumor is the most common intraabdominal malignancy of childhood, but it may also arise from thorax, neck, or rarely occur in the central nervous system. Histologic features include uniform round cells with hyperchromatic nuclei arranged in nests and separated by fibrovascular septa. Neuroblastomas may be associated with the opsoclonus-myoclonus syndrome. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2099-2101; Curr Opin Oncol 1998 Jan;10(1):43-51) | 0 | 7.9 | 2 | 0 |
| Injuries, Spinal Cord [description not available] | 0 | 2.41 | 1 | 0 |
| Spinal Cord Injuries Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.). | 0 | 2.41 | 1 | 0 |
| Bone Cancer [description not available] | 0 | 2.6 | 1 | 0 |
| Osteogenic Sarcoma [description not available] | 0 | 2.6 | 1 | 0 |
| Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. | 0 | 2.6 | 1 | 0 |
| Osteosarcoma A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed) | 0 | 7.6 | 1 | 0 |
| Experimental Lung Inflammation Inflammation of any part, segment or lobe, of the lung parenchyma. | 0 | 2.46 | 2 | 0 |
| Pneumonia Infection of the lung often accompanied by inflammation. | 0 | 2.46 | 2 | 0 |
| Hepatocellular Carcinoma [description not available] | 0 | 5.31 | 3 | 1 |
| Cancer of Liver [description not available] | 0 | 5.31 | 3 | 1 |
| 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. | 0 | 5.31 | 3 | 1 |
| Liver Neoplasms Tumors or cancer of the LIVER. | 0 | 5.31 | 3 | 1 |
| Extravascular Hemolysis [description not available] | 0 | 2.72 | 2 | 0 |
| Hemolysis The destruction of ERYTHROCYTES by many different causal agents such as antibodies, bacteria, chemicals, temperature, and changes in tonicity. | 0 | 2.72 | 2 | 0 |
| Electrolytes Substances that dissociate into two or more ions, to some extent, in water. Solutions of electrolytes thus conduct an electric current and can be decomposed by it (ELECTROLYSIS). (Grant & Hackh's Chemical Dictionary, 5th ed) | 0 | 3.05 | 4 | 0 |
| Degenerative Diseases, Central Nervous System [description not available] | 0 | 2.6 | 1 | 0 |
| Neurodegenerative Diseases Hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral nervous system structures. | 0 | 2.6 | 1 | 0 |
| Breast Cancer [description not available] | 0 | 8.93 | 17 | 4 |
| Metastase [description not available] | 0 | 2.21 | 1 | 0 |
| Breast Neoplasms Tumors or cancer of the human BREAST. | 0 | 8.93 | 17 | 4 |
| Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. | 0 | 2.21 | 1 | 0 |
| Atheroma [description not available] | 0 | 2.21 | 1 | 0 |
| Innate Inflammatory Response [description not available] | 0 | 8.27 | 8 | 4 |
| 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. | 0 | 13.27 | 8 | 4 |
| Cancer of Esophagus [description not available] | 0 | 4.96 | 2 | 1 |
| Esophageal Neoplasms Tumors or cancer of the ESOPHAGUS. | 0 | 4.96 | 2 | 1 |
| Malignant Melanoma [description not available] | 0 | 5.23 | 3 | 1 |
| 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) | 0 | 5.23 | 3 | 1 |
| Experimental Neoplasms [description not available] | 0 | 3.71 | 8 | 0 |
| Starvation Lengthy and continuous deprivation of food. (Stedman, 25th ed) | 0 | 2.25 | 1 | 0 |
| Hyperthermia An abnormal elevation of body temperature, usually as a result of inability to regulate core body temperature due to non-pathologic factors. | 0 | 2.25 | 1 | 0 |
| Cancer of Colon [description not available] | 0 | 2.25 | 1 | 0 |
| Colonic Neoplasms Tumors or cancer of the COLON. | 0 | 2.25 | 1 | 0 |
| Disease Exacerbation [description not available] | 0 | 7.77 | 5 | 4 |
| Genetic Predisposition [description not available] | 0 | 4.62 | 1 | 1 |
| Chronic Illness [description not available] | 0 | 5.19 | 4 | 1 |
| Attachment Loss, Periodontal [description not available] | 0 | 4.62 | 1 | 1 |
| Infections, Coronavirus [description not available] | 0 | 4.62 | 1 | 1 |
| Chemical Dependence [description not available] | 0 | 4.62 | 1 | 1 |
| Cerebral Infarction, Middle Cerebral Artery [description not available] | 0 | 4.62 | 1 | 1 |
| Osteoarthritis of Knee [description not available] | 0 | 4.62 | 1 | 1 |
| Deafness, Transitory [description not available] | 0 | 4.62 | 1 | 1 |
| Liver Abscess, Pyogenic Single or multiple areas of PUS due to bacterial infection within the hepatic parenchyma. It can be caused by a variety of BACTERIA, local or disseminated from infections elsewhere such as in APPENDICITIS; CHOLECYSTITIS; PERITONITIS; and after LIVER TRANSPLANTATION. | 0 | 4.62 | 1 | 1 |
| Complications of Diabetes Mellitus [description not available] | 0 | 7.74 | 4 | 4 |
| Acute Liver Injury, Drug-Induced [description not available] | 0 | 4.62 | 1 | 1 |
| Acute Kidney Failure [description not available] | 0 | 7.74 | 4 | 4 |
| Carcinogenesis The origin, production or development of cancer through genotypic and phenotypic changes which upset the normal balance between cell proliferation and cell death. Carcinogenesis generally requires a constellation of steps, which may occur quickly or over a period of many years. | 0 | 7.74 | 4 | 4 |
| Adverse Drug Event [description not available] | 0 | 4.62 | 1 | 1 |
| Fatty Liver, Nonalcoholic [description not available] | 0 | 4.62 | 1 | 1 |
| Esophageal Squamous Cell Carcinoma A carcinoma that originates usually from cells on the surface of the middle and lower third of the ESOPHAGUS. Tumor cells exhibit typical squamous morphology and form large polypoid lesions. Mutations in RNF6, LZTS1, TGFBR2, DEC1, and WWOX1 genes are associated with this cancer. | 0 | 4.62 | 1 | 1 |
| 2019 Novel Coronavirus Disease [description not available] | 0 | 7.74 | 4 | 4 |
| Ancylostomiasis Infection of humans or animals with hookworms of the genus ANCYLOSTOMA. Characteristics include anemia, dyspepsia, eosinophilia, and abdominal swelling. | 0 | 4.62 | 1 | 1 |
| Auricular Fibrillation [description not available] | 0 | 4.62 | 1 | 1 |
| Bladder Cancer [description not available] | 0 | 4.62 | 1 | 1 |
| Bladder Disorder, Neurogenic [description not available] | 0 | 4.62 | 1 | 1 |
| Acute Brain Injuries [description not available] | 0 | 4.62 | 1 | 1 |
| Benign Neoplasms, Brain [description not available] | 0 | 7.74 | 4 | 4 |
| Carcinoma, Epidermoid [description not available] | 0 | 4.73 | 2 | 1 |
| Cerebral Ischemia [description not available] | 0 | 4.62 | 1 | 1 |
| Caries, Dental [description not available] | 0 | 4.62 | 1 | 1 |
| Alloxan Diabetes [description not available] | 0 | 5.15 | 3 | 1 |
| Diabetes Mellitus, Adult-Onset [description not available] | 0 | 4.62 | 1 | 1 |
| Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. | 0 | 10.1 | 13 | 9 |
| Canine Diseases [description not available] | 0 | 4.62 | 1 | 1 |
| Fistula Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body. | 0 | 4.62 | 1 | 1 |
| Cancer of Gastrointestinal Tract [description not available] | 0 | 4.62 | 1 | 1 |
| Astrocytoma, Grade IV [description not available] | 0 | 4.62 | 1 | 1 |
| Focal Segmental Glomerulosclerosis [description not available] | 0 | 4.62 | 1 | 1 |
| Cardiac Failure [description not available] | 0 | 7.74 | 4 | 4 |
| Bleeding [description not available] | 0 | 4.62 | 1 | 1 |
| Infections, Klebsiella [description not available] | 0 | 4.62 | 1 | 1 |
| Cirrhosis, Liver [description not available] | 0 | 4.62 | 1 | 1 |
| Liver Dysfunction [description not available] | 0 | 4.62 | 1 | 1 |
| Mitral Incompetence [description not available] | 0 | 4.62 | 1 | 1 |
| Kahler Disease [description not available] | 0 | 4.62 | 1 | 1 |
| Cardiomyopathies, Primary [description not available] | 0 | 4.62 | 1 | 1 |
| Angiogenesis, Pathologic [description not available] | 0 | 8 | 6 | 4 |
| Morbid Obesity [description not available] | 0 | 4.62 | 1 | 1 |
| Arthritis, Degenerative [description not available] | 0 | 4.62 | 1 | 1 |
| Pocket, Periodontal [description not available] | 0 | 4.62 | 1 | 1 |
| Pericementitis [description not available] | 0 | 4.62 | 1 | 1 |
| Complication, Postoperative [description not available] | 0 | 4.62 | 1 | 1 |
| Condition, Preneoplastic [description not available] | 0 | 4.62 | 1 | 1 |
| Cancer of Prostate [description not available] | 0 | 7.74 | 4 | 4 |
| Embolism, Pulmonary [description not available] | 0 | 4.62 | 1 | 1 |
| Acute Respiratory Distress Syndrome [description not available] | 0 | 4.62 | 1 | 1 |
| Sarcoma, Epithelioid [description not available] | 0 | 4.62 | 1 | 1 |
| Linear Skull Fracture [description not available] | 0 | 4.62 | 1 | 1 |
| Cancer of Stomach [description not available] | 0 | 9.93 | 9 | 9 |
| Nicotine Addiction [description not available] | 0 | 4.62 | 1 | 1 |
| Zoonoses Diseases of non-human animals that may be transmitted to HUMANS or may be transmitted from humans to non-human animals. | 0 | 4.62 | 1 | 1 |
| Coxarthrosis [description not available] | 0 | 4.62 | 1 | 1 |
| Injury, Ischemia-Reperfusion [description not available] | 0 | 7.92 | 5 | 4 |
| MPTP Neurotoxicity Syndrome [description not available] | 0 | 4.62 | 1 | 1 |
| Shoulder Injuries Injuries involving the SHOULDERS and SHOULDER JOINT. | 0 | 4.62 | 1 | 1 |
| Hemorrhage, Gingival [description not available] | 0 | 4.62 | 1 | 1 |
| Local Neoplasm Recurrence [description not available] | 0 | 4.62 | 1 | 1 |
| Acute Disease Disease having a short and relatively severe course. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Biliary Tract Diseases Diseases in any part of the BILIARY TRACT including the BILE DUCTS and the GALLBLADDER. | 0 | 4.62 | 1 | 1 |
| Urinary Bladder Neoplasms Tumors or cancer of the URINARY BLADDER. | 0 | 4.62 | 1 | 1 |
| Urinary Bladder, Neurogenic Dysfunction of the URINARY BLADDER due to disease of the central or peripheral nervous system pathways involved in the control of URINATION. This is often associated with SPINAL CORD DISEASES, but may also be caused by BRAIN DISEASES or PERIPHERAL NERVE DISEASES. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 7.74 | 4 | 4 |
| 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) | 0 | 4.73 | 2 | 1 |
| Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM. | 0 | 7.74 | 4 | 4 |
| Brain Ischemia Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION. | 0 | 4.62 | 1 | 1 |
| 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). | 0 | 5.19 | 4 | 1 |
| Dental Caries Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. | 0 | 4.62 | 1 | 1 |
| Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE. | 0 | 4.94 | 2 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Gingival Hemorrhage The flowing of blood from the marginal gingival area, particularly the sulcus, seen in such conditions as GINGIVITIS, marginal PERIODONTITIS, injury, and ASCORBIC ACID DEFICIENCY. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Glomerulosclerosis, Focal Segmental A clinicopathological syndrome or diagnostic term for a type of glomerular injury that has multiple causes, primary or secondary. Clinical features include PROTEINURIA, reduced GLOMERULAR FILTRATION RATE, and EDEMA. Kidney biopsy initially indicates focal segmental glomerular consolidation (hyalinosis) or scarring which can progress to globally sclerotic glomeruli leading to eventual KIDNEY FAILURE. | 0 | 4.62 | 1 | 1 |
| Heart Failure A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION. | 0 | 7.74 | 4 | 4 |
| Hemorrhage Bleeding or escape of blood from a vessel. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Kidney Diseases Pathological processes of the KIDNEY or its component tissues. | 0 | 4.62 | 1 | 1 |
| Klebsiella Infections Infections with bacteria of the genus KLEBSIELLA. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Liver Diseases Pathological processes of the LIVER. | 0 | 4.62 | 1 | 1 |
| Mitral Valve Insufficiency Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation. | 0 | 4.62 | 1 | 1 |
| Multiple Myeloma A malignancy of mature PLASMA CELLS engaging in monoclonal immunoglobulin production. It is characterized by hyperglobulinemia, excess Bence-Jones proteins (free monoclonal IMMUNOGLOBULIN LIGHT CHAINS) in the urine, skeletal destruction, bone pain, and fractures. Other features include ANEMIA; HYPERCALCEMIA; and RENAL INSUFFICIENCY. | 0 | 4.62 | 1 | 1 |
| Cardiomyopathies A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS). | 0 | 4.62 | 1 | 1 |
| Obesity, Morbid The condition of weighing two, three, or more times the ideal weight, so called because it is associated with many serious and life-threatening disorders. In the BODY MASS INDEX, morbid obesity is defined as having a BMI greater than 40.0 kg/m2. | 0 | 4.62 | 1 | 1 |
| Osteoarthritis A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans. | 0 | 4.62 | 1 | 1 |
| Periodontal Pocket An abnormal extension of a gingival sulcus accompanied by the apical migration of the epithelial attachment and bone resorption. | 0 | 4.62 | 1 | 1 |
| Periodontitis Inflammation and loss of connective tissues supporting or surrounding the teeth. This may involve any part of the PERIODONTIUM. Periodontitis is currently classified by disease progression (CHRONIC PERIODONTITIS; AGGRESSIVE PERIODONTITIS) instead of age of onset. (From 1999 International Workshop for a Classification of Periodontal Diseases and Conditions, American Academy of Periodontology) | 0 | 4.62 | 1 | 1 |
| Pneumonia, Viral Inflammation of the lung parenchyma that is caused by a viral infection. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| Precancerous Conditions Pathological conditions that tend eventually to become malignant. | 0 | 4.62 | 1 | 1 |
| Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. | 0 | 7.7 | 5 | 4 |
| Prostatic Neoplasms Tumors or cancer of the PROSTATE. | 0 | 7.74 | 4 | 4 |
| Pulmonary Embolism Blocking of the PULMONARY ARTERY or one of its branches by an EMBOLUS. | 0 | 4.62 | 1 | 1 |
| Respiratory Distress Syndrome A syndrome characterized by progressive life-threatening RESPIRATORY INSUFFICIENCY in the absence of known LUNG DISEASES, usually following a systemic insult such as surgery or major TRAUMA. | 0 | 4.62 | 1 | 1 |
| Sarcoma A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant. | 0 | 4.62 | 1 | 1 |
| Stomach Neoplasms Tumors or cancer of the STOMACH. | 0 | 9.93 | 9 | 9 |
| Tobacco Use Disorder Tobacco used to the detriment of a person's health or social functioning. Tobacco dependence is included. | 0 | 4.62 | 1 | 1 |
| Vitiligo A disorder consisting of areas of macular depigmentation, commonly on extensor aspects of extremities, on the face or neck, and in skin folds. Age of onset is often in young adulthood and the condition tends to progress gradually with lesions enlarging and extending until a quiescent state is reached. | 0 | 4.62 | 1 | 1 |
| Osteoarthritis, Hip Noninflammatory degenerative disease of the hip joint which usually appears in late middle or old age. It is characterized by growth or maturational disturbances in the femoral neck and head, as well as acetabular dysplasia. A dominant symptom is pain on weight-bearing or motion. | 0 | 4.62 | 1 | 1 |
| Reperfusion Injury Adverse functional, metabolic, or structural changes in tissues that result from the restoration of blood flow to the tissue (REPERFUSION) following ISCHEMIA. | 0 | 7.92 | 5 | 4 |
| Coronavirus Infections Virus diseases caused by the CORONAVIRUS genus. Some specifics include transmissible enteritis of turkeys (ENTERITIS, TRANSMISSIBLE, OF TURKEYS); FELINE INFECTIOUS PERITONITIS; and transmissible gastroenteritis of swine (GASTROENTERITIS, TRANSMISSIBLE, OF SWINE). | 0 | 4.62 | 1 | 1 |
| Substance-Related Disorders Disorders related to substance use or abuse. | 0 | 4.62 | 1 | 1 |
| Infarction, Middle Cerebral Artery NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction. | 0 | 4.62 | 1 | 1 |
| 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) | 0 | 4.62 | 1 | 1 |
| Hearing Loss A general term for the complete or partial loss of the ability to hear from one or both ears. | 0 | 4.62 | 1 | 1 |
| Lipid Metabolism Disorders Pathological conditions resulting from abnormal anabolism or catabolism of lipids in the body. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 4.62 | 1 | 1 |
| 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. | 0 | 7.74 | 4 | 4 |
| Drug-Related Side Effects and Adverse Reactions Disorders that result from the intended use of PHARMACEUTICAL PREPARATIONS. Included in this heading are a broad variety of chemically-induced adverse conditions due to toxicity, DRUG INTERACTIONS, and metabolic effects of pharmaceuticals. | 0 | 4.62 | 1 | 1 |
| Non-alcoholic Fatty Liver Disease Fatty liver finding without excessive ALCOHOL CONSUMPTION. | 0 | 4.62 | 1 | 1 |
| Latent Tuberculosis The dormant form of TUBERCULOSIS where the person shows no obvious symptoms and no sign of the causative agent (Mycobacterium tuberculosis) in the SPUTUM despite being positive for tuberculosis infection skin test. | 0 | 2.31 | 1 | 0 |
| Koch's Disease [description not available] | 0 | 2.31 | 1 | 0 |
| HIV Coinfection [description not available] | 0 | 2.31 | 1 | 0 |
| Tuberculosis Any of the infectious diseases of man and other animals caused by species of MYCOBACTERIUM TUBERCULOSIS. | 0 | 2.31 | 1 | 0 |
| HIV Infections Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropositivity, thru AIDS-related complex (ARC), to acquired immunodeficiency syndrome (AIDS). | 0 | 2.31 | 1 | 0 |
| Infections, Staphylococcal [description not available] | 0 | 2.31 | 1 | 0 |
| Staphylococcal Infections Infections with bacteria of the genus STAPHYLOCOCCUS. | 0 | 2.31 | 1 | 0 |
| Acute Ischemic Stroke [description not available] | 0 | 7.31 | 1 | 0 |
| Ischemic Stroke Stroke due to BRAIN ISCHEMIA resulting in interruption or reduction of blood flow to a part of the brain. When obstruction is due to a BLOOD CLOT formed within in a cerebral blood vessel it is a thrombotic stroke. When obstruction is formed elsewhere and moved to block a cerebral blood vessel (see CEREBRAL EMBOLISM) it is referred to as embolic stroke. Wake-up stroke refers to ischemic stroke occurring during sleep while cryptogenic stroke refers to ischemic stroke of unknown origin. | 0 | 7.31 | 1 | 0 |
| Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. | 0 | 2.94 | 4 | 0 |
| Cells, Neoplasm Circulating [description not available] | 0 | 2.53 | 2 | 0 |
| Cognitive Decline [description not available] | 0 | 2.17 | 1 | 0 |
| Endotoxemia A condition characterized by the presence of ENDOTOXINS in the blood. On lysis, the outer cell wall of gram-negative bacteria enters the systemic circulation and initiates a pathophysiologic cascade of pro-inflammatory mediators. | 0 | 2.17 | 1 | 0 |
| Cognitive Dysfunction Diminished or impaired mental and/or intellectual function. | 0 | 2.17 | 1 | 0 |
| Cancer of Cervix [description not available] | 0 | 2.85 | 3 | 0 |
| Uterine Cervical Neoplasms Tumors or cancer of the UTERINE CERVIX. | 0 | 2.85 | 3 | 0 |
| Micrometastases, Neoplasm [description not available] | 0 | 2.17 | 1 | 0 |
| Cancer of Pancreas [description not available] | 0 | 2.17 | 1 | 0 |
| Pancreatic Neoplasms Tumors or cancer of the PANCREAS. Depending on the types of ISLET CELLS present in the tumors, various hormones can be secreted: GLUCAGON from PANCREATIC ALPHA CELLS; INSULIN from PANCREATIC BETA CELLS; and SOMATOSTATIN from the SOMATOSTATIN-SECRETING CELLS. Most are malignant except the insulin-producing tumors (INSULINOMA). | 0 | 2.17 | 1 | 0 |
| E coli Infections [description not available] | 0 | 2.25 | 1 | 0 |
| Infections, Prosthesis-Related [description not available] | 0 | 2.25 | 1 | 0 |
| Escherichia coli Infections Infections with bacteria of the species ESCHERICHIA COLI. | 0 | 2.25 | 1 | 0 |
| Metabolic Acidosis [description not available] | 0 | 2.1 | 1 | 0 |
| Acidosis A pathologic condition of acid accumulation or depletion of base in the body. The two main types are RESPIRATORY ACIDOSIS and metabolic acidosis, due to metabolic acid build up. | 0 | 2.1 | 1 | 0 |
| Basal Ganglia Diseases Diseases of the BASAL GANGLIA including the PUTAMEN; GLOBUS PALLIDUS; claustrum; AMYGDALA; and CAUDATE NUCLEUS. DYSKINESIAS (most notably involuntary movements and alterations of the rate of movement) represent the primary clinical manifestations of these disorders. Common etiologies include CEREBROVASCULAR DISORDERS; NEURODEGENERATIVE DISEASES; and CRANIOCEREBRAL TRAUMA. | 0 | 3.01 | 1 | 0 |
| Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) | 0 | 4.75 | 11 | 0 |
| Heavy Metal Poisoning Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of HEAVY METALS. Acute and chronic exposures can cause ANEMIA; KIDNEY and LIVER damage; PULMONARY EDEMA; MEMORY LOSS and behavioral changes; bone deformities in children; and MISCARRIAGE or PREMATURE LABOR in pregnant women. | 0 | 2.15 | 1 | 0 |
| Poisoning Used with drugs, chemicals, and industrial materials for human or animal poisoning, acute or chronic, whether the poisoning is accidental, occupational, suicidal, by medication error, or by environmental exposure. | 0 | 2.37 | 2 | 0 |
| Injuries, Radiation [description not available] | 0 | 2.15 | 1 | 0 |
| Organophosphorus Poisoning [description not available] | 0 | 2.15 | 1 | 0 |
| Organophosphate Poisoning Poisoning due to exposure to ORGANOPHOSPHORUS COMPOUNDS, such as ORGANOPHOSPHATES; ORGANOTHIOPHOSPHATES; and ORGANOTHIOPHOSPHONATES. | 0 | 2.15 | 1 | 0 |
| Manganese Poisoning Manganese poisoning is associated with chronic inhalation of manganese particles by individuals who work with manganese ore. Clinical features include CONFUSION; HALLUCINATIONS; and an extrapyramidal syndrome (PARKINSON DISEASE, SECONDARY) that includes rigidity; DYSTONIA; retropulsion; and TREMOR. (Adams, Principles of Neurology, 6th ed, p1213) | 0 | 4.35 | 21 | 0 |
| Alveolitis, Fibrosing [description not available] | 0 | 2.41 | 2 | 0 |
| Pulmonary Fibrosis A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death. | 0 | 2.41 | 2 | 0 |
| Silicosis A form of pneumoconiosis resulting from inhalation of dust containing crystalline form of SILICON DIOXIDE, usually in the form of quartz. Amorphous silica is relatively nontoxic. | 0 | 2.02 | 1 | 0 |
| Abnormal Deep Tendon Reflex [description not available] | 0 | 1.96 | 1 | 0 |
| Reflex, Abnormal An abnormal response to a stimulus applied to the sensory components of the nervous system. This may take the form of increased, decreased, or absent reflexes. | 0 | 1.96 | 1 | 0 |
| Delayed Effects, Prenatal Exposure [description not available] | 0 | 1.96 | 1 | 0 |
| Amnesic Shellfish Poisoning A condition caused by ingestion of shellfish contaminated by domoic acid-producing diatoms of the genus Pseudo-nitzschia. | 0 | 1.99 | 1 | 0 |
| Leukemia, Myeloid, Acute, M4 [description not available] | 0 | 1.99 | 1 | 0 |
| Leukemia, Myelomonocytic, Acute A pediatric acute myeloid leukemia involving both myeloid and monocytoid precursors. At least 20% of non-erythroid cells are of monocytic origin. | 0 | 1.99 | 1 | 0 |
| Diseases, Occupational [description not available] | 0 | 3.08 | 5 | 0 |
| Atrophy Decrease in the size of a cell, tissue, organ, or multiple organs, associated with a variety of pathological conditions such as abnormal cellular changes, ischemia, malnutrition, or hormonal changes. | 0 | 2 | 1 | 0 |
| EHS Tumor [description not available] | 0 | 1.95 | 1 | 0 |
| Fibrosarcoma A sarcoma derived from deep fibrous tissue, characterized by bundles of immature proliferating fibroblasts with variable collagen formation, which tends to invade locally and metastasize by the bloodstream. (Stedman, 25th ed) | 0 | 1.95 | 1 | 0 |
| BH4 Deficiency [description not available] | 0 | 1.98 | 1 | 0 |
| Phenylketonurias A group of autosomal recessive disorders marked by a deficiency of the hepatic enzyme PHENYLALANINE HYDROXYLASE or less frequently by reduced activity of DIHYDROPTERIDINE REDUCTASE (i.e., atypical phenylketonuria). Classical phenylketonuria is caused by a severe deficiency of phenylalanine hydroxylase and presents in infancy with developmental delay; SEIZURES; skin HYPOPIGMENTATION; ECZEMA; and demyelination in the central nervous system. (From Adams et al., Principles of Neurology, 6th ed, p952). | 0 | 1.98 | 1 | 0 |
| Abnormalities, Autosome [description not available] | 0 | 2.38 | 2 | 0 |
| Sterility, Male [description not available] | 0 | 1.98 | 1 | 0 |
| Infertility, Male The inability of the male to effect FERTILIZATION of an OVUM after a specified period of unprotected intercourse. Male sterility is permanent infertility. | 0 | 1.98 | 1 | 0 |
| Central Nervous System Disease [description not available] | 0 | 1.98 | 1 | 0 |
| Central Nervous System Diseases Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord. | 0 | 1.98 | 1 | 0 |
| Respiratory Tract Diseases Diseases involving the RESPIRATORY SYSTEM. | 0 | 1.98 | 1 | 0 |
| Amyotonia Congenita [description not available] | 0 | 1.97 | 1 | 0 |
| Neuromuscular Diseases A general term encompassing lower MOTOR NEURON DISEASE; PERIPHERAL NERVOUS SYSTEM DISEASES; and certain MUSCULAR DISEASES. Manifestations include MUSCLE WEAKNESS; FASCICULATION; muscle ATROPHY; SPASM; MYOKYMIA; MUSCLE HYPERTONIA, myalgias, and MUSCLE HYPOTONIA. | 0 | 1.97 | 1 | 0 |