Substance | Relationship Strength | Studies | Trials | Classes | Roles |
protocatechuic acid protocatechuic acid: RN given refers to parent cpd; structure. 3,4-dihydroxybenzoic acid : A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4. | 1.99 | 1 | 0 | catechols; dihydroxybenzoic acid | antineoplastic agent; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor; human xenobiotic metabolite; plant metabolite |
acetaldehyde Acetaldehyde: A colorless, flammable liquid used in the manufacture of acetic acid, perfumes, and flavors. It is also an intermediate in the metabolism of alcohol. It has a general narcotic action and also causes irritation of mucous membranes. Large doses may cause death from respiratory paralysis.. acetaldehyde : The aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke.. aldehyde : A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group.. acetyl group : A group, formally derived from acetic acid by dehydroxylation, which is fundamental to the biochemistry of all forms of life. When bound to coenzyme A, it is central to the metabolism of carbohydrates and fats. | 3.51 | 2 | 0 | aldehyde | carcinogenic agent; EC 3.5.1.4 (amidase) inhibitor; electron acceptor; Escherichia coli metabolite; human metabolite; mouse metabolite; mutagen; oxidising agent; Saccharomyces cerevisiae metabolite; teratogenic agent |
bromide Bromides: Salts of hydrobromic acid, HBr, with the bromine atom in the 1- oxidation state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) | 2.04 | 1 | 0 | halide anion; monoatomic bromine | |
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. | 2 | 1 | 0 | monocarboxylic acid | antibacterial agent; astringent; metabolite; protic solvent; solvent |
methane Methane: The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed). methane : A one-carbon compound in which the carbon is attached by single bonds to four hydrogen atoms. It is a colourless, odourless, non-toxic but flammable gas (b.p. -161degreeC). | 2.03 | 1 | 0 | alkane; gas molecular entity; mononuclear parent hydride; one-carbon compound | bacterial metabolite; fossil fuel; greenhouse gas |
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 2.04 | 1 | 0 | halide anion; monoatomic chlorine | cofactor; Escherichia coli metabolite; human 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. | 1.99 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.04 | 1 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
oxamic acid Oxamic Acid: Amino-substituted glyoxylic acid derivative.. oxamic acid : A dicarboxylic acid monoamide resulting from the formal condensation of one of the carboxy groups of oxalic acid with ammonia. | 3.52 | 8 | 0 | dicarboxylic acid monoamide | Escherichia coli metabolite |
sulfites Sulfites: Inorganic salts of sulfurous acid.. sulfites : Any sulfurous acid derivative that is a salt or an ester of sulfurous acid.. organosulfonate oxoanion : An organic anion obtained by deprotonation of the sufonate group(s) of any organosulfonic acid.. sulfite : A sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3). | 3.81 | 3 | 0 | divalent inorganic anion; sulfur oxide; sulfur oxoanion | |
taurine [no description available] | 2 | 1 | 0 | amino sulfonic acid; zwitterion | antioxidant; Escherichia coli metabolite; glycine receptor agonist; human metabolite; mouse metabolite; nutrient; radical scavenger; Saccharomyces cerevisiae metabolite |
acetochlor acetochlor : A monocarboxylic acid amide that is N-phenylacetamide carrying an ethyl and a methyl group at positions 2 and 6 respectively on the benzene ring while one of the methyl hydrogens as well as the hydrogen attached to the nitrogen atom have been replaced by a chloro and an ethoxymethyl group respectively. | 3.11 | 5 | 0 | aromatic amide; monocarboxylic acid amide; organochlorine compound | environmental contaminant; herbicide; xenobiotic |
alachlor alachlor : An aromatic amide that is N-(2,6-diethylphenyl)acetamide substituted by a methoxymethyl group at at the nitrogen atom while one of the hydrogens of the methyl group has been replaced by a chlorine atom. | 3.71 | 10 | 0 | aromatic amide; monocarboxylic acid amide; organochlorine compound | environmental contaminant; herbicide; xenobiotic |
atrazine [no description available] | 2.72 | 3 | 0 | chloro-1,3,5-triazine; diamino-1,3,5-triazine | environmental contaminant; herbicide; xenobiotic |
2-propanol 2-Propanol: An isomer of 1-PROPANOL. It is a colorless liquid having disinfectant properties. It is used in the manufacture of acetone and its derivatives and as a solvent. Topically, it is used as an antiseptic.. propan-2-ol : A secondary alcohol that is propane in which one of the hydrogens attached to the central carbon is substituted by a hydroxy group. | 2.03 | 1 | 0 | secondary alcohol; secondary fatty alcohol | protic solvent |
ketoprofen Ketoprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It is used in the treatment of rheumatoid arthritis and osteoarthritis.. ketoprofen : An oxo monocarboxylic acid that consists of propionic acid substituted by a 3-benzoylphenyl group at position 2. | 2.46 | 2 | 0 | benzophenones; oxo monocarboxylic acid | antipyretic; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-steroidal anti-inflammatory drug; xenobiotic |
metolachlor metolachlor: structure given in first source. metolachlor : A racemate that consists of equimolar amounts of (R)- and (S)-metolachlor.. 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(1-methoxypropan-2-yl)acetamide : An organochlorine compound that is 2-chloroacetamide substituted by a (2-ethyl-6-methylphenyl)-N-(1-methoxypropan-2-yl) group at the nitrogen atom. | 3.83 | 11 | 0 | aromatic amide; benzenes; ether; organochlorine compound | |
fenclonine Fenclonine: A selective and irreversible inhibitor of tryptophan hydroxylase, a rate-limiting enzyme in the biosynthesis of serotonin (5-HYDROXYTRYPTAMINE). Fenclonine acts pharmacologically to deplete endogenous levels of serotonin. | 2.06 | 1 | 0 | phenylalanine derivative | |
propazine propazine: relatively non-toxic triazine herbicide; minor descriptor (75-82); online & Index Medicus search TRIAZINES (75-82). propazine : A diamino-1,3,5-triazine that is N,N'-di(propan-2-yl)-1,3,5-triazine-2,4-diamine substituted by a chloro group at position 6. | 2.04 | 1 | 0 | chloro-1,3,5-triazine; diamino-1,3,5-triazine | environmental contaminant; herbicide; xenobiotic |
propranolol Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.. propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3. | 2.06 | 1 | 0 | naphthalenes; propanolamine; secondary amine | anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic |
simazine Simazine: A triazine herbicide.. simazine : A diamino-1,3,5-triazine that is N,N'-diethyl-1,3,5-triazine-2,4-diamine substituted by a chloro group at position 6. | 2.04 | 1 | 0 | chloro-1,3,5-triazine; diamino-1,3,5-triazine | environmental contaminant; herbicide; xenobiotic |
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 2.02 | 1 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
methanesulfonic acid [no description available] | 2.31 | 1 | 0 | alkanesulfonic acid; one-carbon compound | Escherichia coli metabolite |
methylethyl ketone methylethyl ketone: solvent; colorless synthetic resins, smokeless powders; may be irritating to eyes, mucous membranes; may be toxic in high concentrations; structure. butanone : Any ketone that is butane substituted by an oxo group at unspecified position.. butan-2-one : A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2. | 2.02 | 1 | 0 | butanone; dialkyl ketone; methyl ketone; volatile organic compound | bacterial metabolite; polar aprotic solvent |
diisopropylamine diisopropylamine: structure given in first source | 2.05 | 1 | 0 | | |
vanillic acid Vanillic Acid: A flavoring agent. It is the intermediate product in the two-step bioconversion of ferulic acid to vanillin. (J Biotechnol 1996;50(2-3):107-13).. vanillic acid : A monohydroxybenzoic acid that is 4-hydroxybenzoic acid substituted by a methoxy group at position 3. | 1.99 | 1 | 0 | methoxybenzoic acid; monohydroxybenzoic acid | plant metabolite |
oxanilic acid oxanilic acid: RN given refers to parent cpd; structure | 3.52 | 8 | 0 | | |
6-deisopropylatrazine deisopropylatrazine : A diamino-1,3,5-triazine that is N-ethyl-1,3,5-triazine-2,4-diamine substituted by a chloro group at position 6. | 2 | 1 | 0 | chloro-1,3,5-triazine; diamino-1,3,5-triazine | bacterial xenobiotic metabolite; marine xenobiotic metabolite |
dithiothreitol 1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol. | 2.08 | 1 | 0 | 1,4-dimercaptobutane-2,3-diol; butanediols; dithiol; glycol; thiol | chelator; human metabolite; reducing agent |
4-deethylatrazine desethylatrazine: a chlorotriazine herbicide; structure in first source. deethylatrazine : A chloro-1,3,5-triazine that is 6-chloro-1,3,5-triazine-2,4-diamine in which one of the hydrogens of the amino group is replaced by a propan-2-yl group. | 2 | 1 | 0 | chloro-1,3,5-triazine; diamino-1,3,5-triazine | marine xenobiotic metabolite |
4-chlorophenylalanine methyl ester 4-chlorophenylalanine methyl ester: RN given refers to parent cpd without isomeric designation | 2.06 | 1 | 0 | | |
stilbene oxide stilbene oxide: inducer of epoxide hydratase; RN given refers to cpd without isomeric designation | 2.06 | 1 | 0 | epoxide | |
cyanazine cyanazine: structure. cyanazine : A chloro-1,3,5-triazine that is 2-chloro-1,3,5-triazine substituted by an ethyl amino and a (2-cyanopropan-2-yl)amino group at positions 6 and 4 respectively. | 2 | 1 | 0 | 1,3,5-triazinylamino nitrile; chloro-1,3,5-triazine | environmental contaminant; herbicide; xenobiotic |
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. | 1.99 | 1 | 0 | benzenes; phenyl acetates | |
propylsulfonic acid propylsulfonic acid: RN given refers to cpd without locant for propyl moiety | 2 | 1 | 0 | | |
bromates Bromates: Negative ions or salts derived from bromic acid, HBrO3. | 2.04 | 1 | 0 | bromine oxoanion; monovalent inorganic anion | |
dimethenamid dimethenamid: structure in first source. dimethenamid : A racemate composed of equimolar amounts of (R)- and (S)-dimethenamid. A herbicide, it is applied to the soil for the control of various broad-leaved weeds and grasses. Only the S enantiomer (generally known as dimethenamid-P) is active.. 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide : An organochlorine compound that is 2-chloroacetamide substituted by a 2,4-dimethylthiophen-3-yl and a 1-methoxypropan-2-yl group at the nitrogen atom. | 2.01 | 1 | 0 | aromatic amide; ether; organochlorine compound; thiophenes | |
2-chloro-n-(ethoxymethyl)-n-(2-methyl-6-(trifluoromethyl)phenyl)acetamide 2-chloro-N-(ethoxymethyl)-N-(2-methyl-6-(trifluoromethyl)phenyl)acetamide: structure given in first source | 2.05 | 1 | 0 | | |
sulfoacetaldehyde [no description available] | 3.51 | 2 | 0 | alpha-CH2-containing aldehyde; organosulfonic acid | |
stilbenes Stilbenes: Organic compounds that contain 1,2-diphenylethylene as a functional group.. trans-stilbene : The trans-isomer of stilbene. | 2.06 | 1 | 0 | stilbene | |
sodium taurodeoxycholate Taurodeoxycholic Acid: A bile salt formed in the liver by conjugation of deoxycholate with taurine, usually as the sodium salt. It is used as a cholagogue and choleretic, also industrially as a fat emulsifier.. taurodeoxycholic acid : A bile acid taurine conjugate of deoxycholic acid.. taurodeoxycholate : An organosulfonate oxoanion that is the conjugate base of taurodeoxycholic acid. | 2.02 | 1 | 0 | bile acid taurine conjugate | human metabolite |
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. | 1.99 | 1 | 0 | chalcogen; nonmetal atom | macronutrient |
cysteine Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | 2.04 | 1 | 0 | cysteinium | fundamental metabolite |
ammonium sulfate Ammonium Sulfate: Sulfuric acid diammonium salt. It is used in CHEMICAL FRACTIONATION of proteins.. ammonium sulfate : An inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia. A high-melting (decomposes above 280degreeC) white solid which is very soluble in water (70.6 g/100 g water at 0degreeC; 103.8 g/100 g water at 100degreeC), it is widely used as a fertilizer for alkaline soils. | 2.31 | 1 | 0 | ammonium salt; inorganic sulfate salt | fertilizer |
endothelin-1 Endothelin-1: A 21-amino acid peptide produced in a variety of tissues including endothelial and vascular smooth-muscle cells, neurons and astrocytes in the central nervous system, and endometrial cells. It acts as a modulator of vasomotor tone, cell proliferation, and hormone production. (N Eng J Med 1995;333(6):356-63) | 2 | 1 | 0 | | |
mesna Mesna: A sulfhydryl compound used to prevent urothelial toxicity by inactivating metabolites from ANTINEOPLASTIC AGENTS, such as IFOSFAMIDE or CYCLOPHOSPHAMIDE. | 2.02 | 1 | 0 | organosulfonic acid | |
sodium bisulfite sodium bisulfite: has been used externally for parasitic skin diseases and as gastrointestinal antiseptic; structure. sodium hydrogensulfite : An inorganic sodium salt having hydrogensulfite as the counterion. | 2.05 | 1 | 0 | inorganic sodium salt; sulfite salt | allergen; food antioxidant; food colour retention agent; mutagen; reducing agent |
2-hydroxyatrazine 4-ethylamino-6-isopropylamino-1,3,5-triazin-2-ol : A monohydroxy-1,3,5-triazine that is atrazine in which the chloro group has been replaced by a hydroxy group. | 2 | 1 | 0 | diamino-1,3,5-triazine; monohydroxy-1,3,5-triazine | human xenobiotic metabolite; marine xenobiotic metabolite |