Substance | Relationship Strength | Studies | Trials | Classes | Roles |
3-hydroxykynurenine 3-hydroxykynurenine: RN given refers to cpd without isomeric designation. 3-hydroxykynurenine : A hydroxykynurenine that is kynurenine substituted by a hydroxy group at position 3.. hydroxykynurenine : A hydroxy-amino acid that is kynurenine substituted by a single hydroxy group at unspecified position. A "closed" class. | 1.97 | 1 | 0 | hydroxykynurenine | human metabolite |
acetoacetic acid acetoacetic acid : A 3-oxo monocarboxylic acid that is butyric acid bearing a 3-oxo substituent. | 1.92 | 1 | 0 | 3-oxo fatty acid; ketone body | metabolite |
4-hydroxybenzaldehyde [no description available] | 6.93 | 1 | 0 | hydroxybenzaldehyde | EC 1.14.17.1 (dopamine beta-monooxygenase) inhibitor; mouse metabolite; plant metabolite |
4-hydroxyphenylacetic acid 4-hydroxyphenylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group. | 3.23 | 6 | 0 | monocarboxylic acid; phenols | fungal metabolite; human metabolite; mouse metabolite; plant metabolite |
acetic acid Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons. | 2.02 | 1 | 0 | monocarboxylic acid | antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent |
adipic acid adipic acid : An alpha,omega-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. | 2.03 | 1 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | food acidity regulator; human xenobiotic metabolite |
benzoic acid Benzoic Acid: A fungistatic compound that is widely used as a food preservative. It is conjugated to GLYCINE in the liver and excreted as hippuric acid.. benzoic acid : A compound comprising a benzene ring core carrying a carboxylic acid substituent.. aromatic carboxylic acid : Any carboxylic acid in which the carboxy group is directly bonded to an aromatic ring. | 2.4 | 2 | 0 | benzoic acids | algal metabolite; antimicrobial food preservative; drug allergen; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.1.1.3 (triacylglycerol lipase) inhibitor; human xenobiotic metabolite; plant metabolite |
butyric acid Butyric Acid: A four carbon acid, CH3CH2CH2COOH, with an unpleasant odor that occurs in butter and animal fat as the glycerol ester.. butyrate : A short-chain fatty acid anion that is the conjugate base of butyric acid, obtained by deprotonation of the carboxy group.. butyric acid : A straight-chain saturated fatty acid that is butane in which one of the terminal methyl groups has been oxidised to a carboxy group. | 2.03 | 1 | 0 | fatty acid 4:0; straight-chain saturated fatty acid | human urinary metabolite; Mycoplasma genitalium metabolite |
4-hydroxymandelic acid 4-hydroxymandelic acid: RN given refers to cpd without isomeric designation. 4-hydroxymandelic acid : A 2-hydroxy carboxylic acid that is mandelic acid bearing a phenolic hydroxy substituent at position 4. | 2.05 | 1 | 0 | 2-hydroxy carboxylic acid; phenols | metabolite |
salicylic acid Scalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL). | 2.03 | 1 | 0 | monohydroxybenzoic acid | algal metabolite; antifungal agent; antiinfective agent; EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor; keratolytic drug; plant hormone; plant metabolite |
phloroglucinol Phloroglucinol: A trinitrobenzene derivative with antispasmodic properties that is used primarily as a laboratory reagent.. phloroglucinol : A benzenetriol with hydroxy groups at position 1, 3 and 5. | 2.13 | 1 | 0 | benzenetriol; phenolic donor | algal metabolite |
3-hydroxybutyric acid 3-Hydroxybutyric Acid: BUTYRIC ACID substituted in the beta or 3 position. It is one of the ketone bodies produced in the liver.. 3-hydroxybutyric acid : A straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. | 2.03 | 1 | 0 | (omega-1)-hydroxy fatty acid; 3-hydroxy monocarboxylic acid; hydroxybutyric acid | human metabolite |
hippuric acid hippuric acid: RN given refers to parent cpd; structure in Merck Index, 9th ed, #4591. N-benzoylglycine : An N-acylglycine in which the acyl group is specified as benzoyl. | 2.45 | 2 | 0 | N-acylglycine | human blood serum metabolite; uremic toxin |
3,4-dihydroxyphenylacetic acid 3,4-Dihydroxyphenylacetic Acid: A deaminated metabolite of LEVODOPA.. (3,4-dihydroxyphenyl)acetic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine.. dihydroxyphenylacetic acid : A dihydroxy monocarboxylic acid consisting of phenylacetic acid having two phenolic hydroxy substituents. | 1.96 | 1 | 0 | catechols; dihydroxyphenylacetic acid | human metabolite |
glutaric acid glutaric acid: RN given refers to parent cpd. glutaric acid : An alpha,omega-dicarboxylic acid that is a linear five-carbon dicarboxylic acid. | 2.03 | 1 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | Daphnia magna metabolite; human metabolite |
glycine [no description available] | 2 | 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. | 1.96 | 1 | 0 | 2-oxo monocarboxylic acid; aldehydic acid | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
homogentisic acid Homogentisic Acid: Dihydroxyphenylacetic acid with hydroxyls at the 2 and 5 positions of the phenyl ring.. homogentisic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents at the 2- and 5-positions. | 4.58 | 8 | 0 | dihydroxyphenylacetic acid; hydroquinones | human metabolite; plant 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. | 1.96 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
indoleacetic acid indoleacetic acid: RN given refers to unlabeled parent cpd; structure in Merck Index, 9th ed, #4841. auxin : Any of a group of compounds, both naturally occurring and synthetic, that induce cell elongation in plant stems (from Greek alphaupsilonxialphanuomega, "to grow").. indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 2.37 | 2 | 0 | indole-3-acetic acids; monocarboxylic acid | auxin; human metabolite; mouse metabolite; plant hormone; plant metabolite |
indol-3-yl pyruvic acid 3-(indol-3-yl)pyruvic acid : A 2-oxo monocarboxylic acid that is pyruvic acid substituted by a 1H-indol-3-yl group at position 3. It has been found in Lycopersicon esculentum | 2.38 | 2 | 0 | 2-oxo monocarboxylic acid; indol-3-yl carboxylic acid | plant metabolite; Saccharomyces cerevisiae 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. | 1.96 | 1 | 0 | hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative | human metabolite |
kynurenine Kynurenine: A metabolite of the essential amino acid tryptophan metabolized via the tryptophan-kynurenine pathway.. kynurenine : A ketone that is alanine in which one of the methyl hydrogens is substituted by a 2-aminobenzoyl group. | 1.97 | 1 | 0 | aromatic ketone; non-proteinogenic alpha-amino acid; substituted aniline | human metabolite |
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.15 | 1 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
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) | 2.15 | 1 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | human metabolite |
oxaloacetic acid Oxaloacetic Acid: A dicarboxylic acid ketone that is an important metabolic intermediate of the CITRIC ACID CYCLE. It can be converted to ASPARTIC ACID by ASPARTATE TRANSAMINASE.. oxaloacetic acid : An oxodicarboxylic acid that is succinic acid bearing a single oxo group. | 2.03 | 1 | 0 | C4-dicarboxylic acid; oxo dicarboxylic acid | geroprotector; metabolite |
phenol [no description available] | 2.04 | 1 | 0 | phenols | antiseptic drug; disinfectant; human xenobiotic metabolite; mouse metabolite |
phenylpyruvic acid phenylpyruvic acid: RN given refers to parent cpd. phenylpyruvate : A 2-oxo monocarboxylic acid anion resulting from deprotonation of the carboxy group of either keto- or enol-phenylpyruvic acid.. keto-phenylpyruvic acid : A 2-oxo monocarboxylic acid that is 3-phenylpropanoic acid substituted by an oxo group at position 2. It is an intermediate metabolite in the phenylalanine pathway. | 3.99 | 14 | 0 | 2-oxo monocarboxylic acid | chromogenic compound; EC 6.4.1.1 (pyruvate carboxylase) inhibitor; fundamental metabolite |
phenylacetic acid phenylacetic acid : A monocarboxylic acid that is toluene in which one of the hydrogens of the methyl group has been replaced by a carboxy group. | 2.01 | 1 | 0 | benzenes; monocarboxylic acid; phenylacetic acids | allergen; Aspergillus metabolite; auxin; EC 6.4.1.1 (pyruvate carboxylase) inhibitor; Escherichia coli metabolite; human metabolite; plant growth retardant; plant metabolite; Saccharomyces cerevisiae metabolite; toxin |
prephenic acid prephenic acid: nonaromatic biosynthetic intermediate, probable immediate precursor of aromatic systems such as phenylalanine, tyrosine, tannins, flavanoids; isolated from cultures of mutant E coli; structure. (1s,4s)-prephenic acid : A prephenic acid having (1s,4s)-cis-configuration.. prephenic acid : An oxo dicarboxylic acid that consists of 4-hydroxycyclohexa-2,5-diene-1-carboxylic acid substituted by a 2-carboxy-2-oxoethyl group at position 1. | 2.38 | 2 | 0 | oxo dicarboxylic acid | Escherichia coli metabolite; plant metabolite |
propionic acid propionic acid : A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | 2.03 | 1 | 0 | saturated fatty acid; short-chain fatty acid | antifungal drug |
pyridoxal phosphate Pyridoxal Phosphate: This is the active form of VITAMIN B 6 serving as a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into pyridoxamine phosphate (PYRIDOXAMINE).. pyridoxal 5'-phosphate : The monophosphate ester obtained by condensation of phosphoric acid with the primary hydroxy group of pyridoxal. | 1.97 | 1 | 0 | methylpyridines; monohydroxypyridine; pyridinecarbaldehyde; vitamin B6 phosphate | coenzyme; cofactor; EC 2.7.7.7 (DNA-directed DNA polymerase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
pyridoxine 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol: structure in first source. vitamin B6 : Any member of the group of pyridines that exhibit biological activity against vitamin B6 deficiency. Vitamin B6 deficiency is associated with microcytic anemia, electroencephalographic abnormalities, dermatitis with cheilosis (scaling on the lips and cracks at the corners of the mouth) and glossitis (swollen tongue), depression and confusion, and weakened immune function. Vitamin B6 consists of the vitamers pyridoxine, pyridoxal, and pyridoxamine and their respective 5'-phosphate esters (and includes their corresponding ionized and salt forms). | 1.94 | 1 | 0 | hydroxymethylpyridine; methylpyridines; monohydroxypyridine; vitamin B6 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
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. | 2.9 | 4 | 0 | 2-oxo monocarboxylic acid | cofactor; fundamental metabolite |
succinic acid Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. | 2.05 | 1 | 0 | alpha,omega-dicarboxylic acid; C4-dicarboxylic acid | anti-ulcer drug; fundamental metabolite; micronutrient; nutraceutical; radiation protective agent |
homovanillic acid Homovanillic Acid: A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid.. homovanillate : A hydroxy monocarboxylic acid anion which is obtained by deprotonation of the carboxy group of homovanillic acid.. homovanillic acid : A monocarboxylic acid that is the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite. | 1.96 | 1 | 0 | guaiacols; monocarboxylic acid | human metabolite; mouse metabolite |
hydroxyindoleacetic acid (5-hydroxyindol-3-yl)acetic acid : A member of the class of indole-3-acetic acids that is indole-3-acetic acid substituted by a hydroxy group at C-5. | 1.96 | 1 | 0 | indole-3-acetic acids | drug metabolite; human metabolite; mouse metabolite |
p-aminohippuric acid p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.. p-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.. p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow. | 2.45 | 2 | 0 | N-acylglycine | Daphnia magna metabolite |
aspirin Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5). acetylsalicylate : A benzoate that is the conjugate base of acetylsalicylic acid, arising from deprotonation of the carboxy group.. acetylsalicylic acid : A member of the class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group. A non-steroidal anti-inflammatory drug with cyclooxygenase inhibitor activity. | 2.03 | 1 | 0 | benzoic acids; phenyl acetates; salicylates | anticoagulant; antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; EC 1.1.1.188 (prostaglandin-F synthase) inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; plant activator; platelet aggregation inhibitor; prostaglandin antagonist; teratogenic agent |
chlorpropamide Chlorpropamide: A sulfonylurea hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. (From Martindale, The Extra Pharmacopoeia, 30th ed, p277). chlorpropamide : An N-sulfonylurea that is urea in which a hydrogen attached to one of the nitrogens is substituted by 4-chlorobenzenesulfonyl group and a hydrogen attached to the other nitrogen is substituted by propyl group. Chlorpropamide is a hypoglycaemic agent used in the treatment of type 2 (non-insulin-dependent) diabetes mellitus not responding to dietary modification. | 2.06 | 1 | 0 | monochlorobenzenes; N-sulfonylurea | hypoglycemic agent; insulin secretagogue |
etodolac Etodolac: A non-steroidal anti-inflammatory agent and cyclooxygenase-2 (COX-2) inhibitor with potent analgesic and anti-arthritic properties. It has been shown to be effective in the treatment of OSTEOARTHRITIS; RHEUMATOID ARTHRITIS; ANKYLOSING SPONDYLITIS; and in the alleviation of postoperative pain (PAIN, POSTOPERATIVE).. etodolac : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl moiety. A preferential inhibitor of cyclo-oxygenase 2 and non-steroidal anti-inflammatory, it is used for the treatment of rheumatoid arthritis and osteoarthritis, and for the alleviation of postoperative pain. Administered as the racemate, only the (S)-enantiomer is active. | 2.06 | 1 | 0 | monocarboxylic acid; organic heterotricyclic compound | antipyretic; cyclooxygenase 2 inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug |
fluorescite fluorescein (acid form) : A xanthene dye that is highly fluorescent and commonly used as a fluorescent tracer. | 2.03 | 1 | 0 | benzoic acids; cyclic ketone; hydroxy monocarboxylic acid; organic heterotricyclic compound; phenols; xanthene dye | fluorescent dye; radioopaque medium |
ibudilast [no description available] | 3.85 | 2 | 0 | pyrazolopyridine | |
ibuprofen Midol: combination of cinnamedrine, phenacetin, aspirin & caffeine | 2.03 | 1 | 0 | monocarboxylic acid | antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; environmental contaminant; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; radical scavenger; xenobiotic |
indolepropionic acid indolepropionic acid: structure in third source. 3-(1H-indol-3-yl)propanoic acid : An indol-3-yl carboxylic acid that is propionic acid substituted by a 1H-indol-3-yl group at position 3. | 1.96 | 1 | 0 | indol-3-yl carboxylic acid | auxin; human metabolite; plant metabolite |
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). | 1.94 | 1 | 0 | carbohydrazide | antitubercular agent; drug allergen |
probenecid Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.. probenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups. | 2.03 | 1 | 0 | benzoic acids; sulfonamide | uricosuric drug |
succinylacetone succinylacetone: inhibitor of heme biosynthesis. 4,6-dioxoheptanoic acid : A dioxo monocarboxylic acid that is heptanoic acid in which oxo groups replace the hydrogens at positions 4 and 6. It is an abnormal metabolite of the tyrosine metabolic pathway and a marker for type 1 tyrosinaemia. | 2.46 | 2 | 0 | beta-diketone; dioxo monocarboxylic acid | human metabolite |
suramin Suramin: A polyanionic compound with an unknown mechanism of action. It is used parenterally in the treatment of African trypanosomiasis and it has been used clinically with diethylcarbamazine to kill the adult Onchocerca. (From AMA Drug Evaluations Annual, 1992, p1643) It has also been shown to have potent antineoplastic properties.. suramin : A member of the class of phenylureas that is urea in which each of the amino groups has been substituted by a 3-({2-methyl-5-[(4,6,8-trisulfo-1-naphthyl)carbamoyl]phenyl}carbamoyl)phenyl group. An activator of both the rabbit skeletal muscle RyR1 and sheep cardiac RyR2 isoform ryanodine receptor channels, it has been used for the treatment of human African trypanosomiasis for over 100 years. | 1.99 | 1 | 0 | naphthalenesulfonic acid; phenylureas; secondary carboxamide | angiogenesis inhibitor; antinematodal drug; antineoplastic agent; apoptosis inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; GABA antagonist; GABA-gated chloride channel antagonist; purinergic receptor P2 antagonist; ryanodine receptor agonist; trypanocidal drug |
tolbutamide Tolbutamide: A sulphonylurea hypoglycemic agent with actions and uses similar to those of CHLORPROPAMIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290). tolbutamide : An N-sulfonylurea that consists of 1-butylurea having a tosyl group attached at the 3-position. | 2.06 | 1 | 0 | N-sulfonylurea | human metabolite; hypoglycemic agent; insulin secretagogue; potassium channel blocker |
tyramine [no description available] | 1.96 | 1 | 0 | monoamine molecular messenger; primary amino compound; tyramines | EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter |
xanthurenic acid xanthurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by hydroxy groups at C-4 and C-8. | 1.97 | 1 | 0 | dihydroxyquinoline; quinolinemonocarboxylic acid | animal metabolite; iron chelator; metabotropic glutamate receptor agonist; vesicular glutamate transport inhibitor |
serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.02 | 1 | 0 | L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4. | 2.41 | 2 | 0 | amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
sucrose Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar. | 2.05 | 1 | 0 | glycosyl glycoside | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; sweetening agent |
uridine [no description available] | 1.98 | 1 | 0 | uridines | drug metabolite; fundamental metabolite; human 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 | 2.11 | 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 |
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. | 5.79 | 35 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
adenosine monophosphate Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | 1.96 | 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 |
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. | 2.39 | 2 | 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. | 3.69 | 10 | 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 |
dithionitrobenzoic acid Dithionitrobenzoic Acid: A standard reagent for the determination of reactive sulfhydryl groups by absorbance measurements. It is used primarily for the determination of sulfhydryl and disulfide groups in proteins. The color produced is due to the formation of a thio anion, 3-carboxyl-4-nitrothiophenolate.. dithionitrobenzoic acid : An organic disulfide that results from the formal oxidative dimerisation of 2-nitro-5-thiobenzoic acid. An indicator used to quantify the number or concentration of thiol groups. | 1.97 | 1 | 0 | nitrobenzoic acid; organic disulfide | indicator |
tryptophan Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3. | 9 | 5 | 0 | erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; tryptophan zwitterion; tryptophan | antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
pyrrolidonecarboxylic acid Pyrrolidonecarboxylic Acid: A cyclized derivative of L-GLUTAMIC ACID. Elevated blood levels may be associated with problems of GLUTAMINE or GLUTATHIONE metabolism.. 5-oxo-L-proline : An optically active form of 5-oxoproline having L-configuration. | 1.98 | 1 | 0 | 5-oxoproline; L-proline derivative; non-proteinogenic L-alpha-amino acid | algal metabolite |
boric acid [no description available] | 2.01 | 1 | 0 | boric acids | astringent |
heptanoic acid heptanoic acid : A C7, straight-chain fatty acid that contributes to the odour of some rancid oils. Used in the preparation of esters for the fragrance industry, and as an additive in cigarettes. | 2.03 | 1 | 0 | medium-chain fatty acid; straight-chain saturated fatty acid | plant metabolite |
2-methylbutanoic acid 2-methylbutanoic acid: RN given refers to parent cpd without isomeric designation. 2-methylbutyric acid : A methylbutyric acid comprising a butyric acid core carrying a 2-methyl substituent. Produced from amino acid leucine during nutrient starvation in bacteria. | 2.03 | 1 | 0 | methylbutyric acid | bacterial metabolite; human metabolite |
2-ethylhexanoic acid 2-ethylhexanoic acid: structure in first source; wood preservative; 2-ethylhexanoic acid is active ingredient in Sinesto B | 2.03 | 1 | 0 | branched-chain fatty acid | |
hexanoic acid hexanoic acid : A C6, straight-chain saturated fatty acid. | 2.03 | 1 | 0 | medium-chain fatty acid; straight-chain saturated fatty acid | human metabolite; plant metabolite |
cyclopentane Cyclopentanes: A group of alicyclic hydrocarbons with the general formula R-C5H9.. cyclopentanes : Cyclopentane and its derivatives formed by substitution. | 2.01 | 1 | 0 | cycloalkane; cyclopentanes; volatile organic compound | non-polar solvent |
pyrazines Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms. | 2.41 | 1 | 0 | diazine; pyrazines | Daphnia magna metabolite |
diiodotyrosine Diiodotyrosine: A product from the iodination of MONOIODOTYROSINE. In the biosynthesis of thyroid hormones, diiodotyrosine residues are coupled with other monoiodotyrosine or diiodotyrosine residues to form T4 or T3 thyroid hormones (THYROXINE and TRIIODOTHYRONINE).. diiodotyrosine : A dihalogenated L-tyrosine which has two iodo-substituents on the benzyl moiety.. 3,5-diiodo-L-tyrosine : A diiodotyrosine that is L-tyrosine carrying iodo-substituents at positions C-3 and C-5 of the benzyl group. It is an intermediate in the thyroid hormone synthesis. | 1.93 | 1 | 0 | diiodotyrosine; L-tyrosine derivative; non-proteinogenic L-alpha-amino acid | human metabolite; mouse metabolite |
4-hydroxyphenyllactic acid 4-hydroxyphenyllactic acid: tyrosing metabolite; RN given refers to cpd without isomeric designation. 3-(4-hydroxyphenyl)lactic acid : A 2-hydroxy carboxylic acid that is lactic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group. | 4.07 | 15 | 0 | 2-hydroxy carboxylic acid; phenols | bacterial metabolite; human metabolite |
citrulline citrulline : The parent compound of the citrulline class consisting of ornithine having a carbamoyl group at the N(5)-position. | 1.97 | 1 | 0 | amino acid zwitterion; citrulline | Daphnia magna metabolite; EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; protective agent; Saccharomyces cerevisiae metabolite |
salicylurate salicylurate: RN given refers to parent cpd. salicyluric acid : An N-acylglycine in which the acyl group is specified as 2-hydroxybenzoyl.. salicylurate : A monocarboxylic acid anion that is the conjugate base of salicyluric acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. | 2.06 | 1 | 0 | N-acylglycine; secondary carboxamide | human xenobiotic metabolite; uremic toxin |
isovaleric acid isovaleric acid: structure. isovaleric acid : A C5, branched-chain saturated fatty acid. | 2.03 | 1 | 0 | branched-chain saturated fatty acid; methylbutyric acid; short-chain fatty acid | mammalian metabolite; plant metabolite |
suberic acid suberic acid: used in plastics industry; inhibits activity of some enzymes; RN given refers to parent cpd; structure. suberic acid : An alpha,omega-dicarboxylic acid that is the 1,6-dicarboxy derivative of hexane. | 2.03 | 1 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | human metabolite |
tryptophol tryptophol : An indolyl alcohol that is ethanol substituted by a 1H-indol-3-yl group at position 2. | 1.96 | 1 | 0 | indolyl alcohol | auxin; plant metabolite; Saccharomyces cerevisiae metabolite |
methoxyhydroxyphenylglycol Methoxyhydroxyphenylglycol: Synthesized from endogenous epinephrine and norepinephrine in vivo. It is found in brain, blood, CSF, and urine, where its concentrations are used to measure catecholamine turnover. | 1.96 | 1 | 0 | methoxybenzenes; phenols | |
phenylglyoxylic acid phenylglyoxylic acid: styrene metabolite. phenylglyoxylic acid : A 2-oxo monocarboxylic acid that is glyoxylic acid in which the aldehyde hydrogen is substituted by a phenyl group. | 2.06 | 1 | 0 | 2-oxo monocarboxylic acid | biomarker; human xenobiotic metabolite |
chorismic acid Chorismic Acid: A cyclohexadiene carboxylic acid derived from SHIKIMIC ACID and a precursor for the biosynthesis of UBIQUINONE and the AROMATIC AMINO ACIDS.. chorismic acid : The (3R,4R)-stereoisomer of 5-[(1-carboxyethenyl)oxy]-6-hydroxycyclohexa-1,3-diene-1-carboxylic acid. | 2.01 | 1 | 0 | 5-[(1-carboxyethenyl)oxy]-6-hydroxycyclohexa-1,3-diene-1-carboxylic acid | Escherichia coli metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
ethyl pyruvate [no description available] | 2.5 | 2 | 0 | oxo carboxylic acid | |
vancomycin Vancomycin: Antibacterial obtained from Streptomyces orientalis. It is a glycopeptide related to RISTOCETIN that inhibits bacterial cell wall assembly and is toxic to kidneys and the inner ear.. vancomycin : A complex glycopeptide from Streptomyces orientalis. It inhibits a specific step in the synthesis of the peptidoglycan layer in the Gram-positive bacteria Staphylococcus aureus and Clostridium difficile. | 2.13 | 1 | 0 | glycopeptide | antibacterial drug; antimicrobial agent; bacterial metabolite |
tocopherols [no description available] | 2.01 | 1 | 0 | | |
4-hydroxyphenoxyacetic acid [no description available] | 2.01 | 1 | 0 | monocarboxylic acid | |
dithiothreitol 1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol. | 1.97 | 1 | 0 | 1,4-dimercaptobutane-2,3-diol; butanediols; dithiol; glycol; thiol | chelator; human metabolite; reducing agent |
carbenicillin disodium [no description available] | 2.03 | 1 | 0 | organic sodium salt | |
galactosamine 2-amino-2-deoxy-D-galactopyranose : The pyranose form of D-galactosamine.. D-galactosamine : The D-stereoisomer of galactosamine. | 2.11 | 1 | 0 | D-galactosamine; primary amino compound | toxin |
deuterium Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.38 | 2 | 0 | dihydrogen | |
deuterium oxide Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes. | 2.05 | 1 | 0 | deuterated compound; water | NMR solvent |
tiletamine hydrochloride Cyclohexanones: Cyclohexane ring substituted by one or more ketones in any position.. cyclohexanones : Any alicyclic ketone based on a cyclohexane skeleton and its substituted derivatives thereof. | 4.04 | 5 | 0 | | |
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. | 2.01 | 1 | 0 | benzenes; phenyl acetates | |
ticarcillin Ticarcillin: An antibiotic derived from penicillin similar to CARBENICILLIN in action.. ticarcillin : A penicillin compound having a 6beta-[(2R)-2-carboxy-2-thiophen-3-ylacetyl]amino side-group. | 2.03 | 1 | 0 | penicillin allergen; penicillin | antibacterial drug |
oxyfluorofen oxyfluorofen: structure | 2.01 | 1 | 0 | aromatic ether | EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor; herbicide |
pravastatin Pravastatin: An antilipemic fungal metabolite isolated from cultures of Nocardia autotrophica. It acts as a competitive inhibitor of HMG CoA reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES).. pravastatin : A carboxylic ester resulting from the formal condensation of (S)-2-methylbutyric acid with the hydroxy group adjacent to the ring junction of (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6,8-dihydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid. Derived from microbial transformation of mevastatin, pravastatin is a reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA). The sodium salt is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin. | 2.06 | 1 | 0 | 3-hydroxy carboxylic acid; carbobicyclic compound; carboxylic ester; hydroxy monocarboxylic acid; secondary alcohol; statin (semi-synthetic) | anticholesteremic drug; environmental contaminant; metabolite; xenobiotic |
n-acetylaspartic acid N-acetyl-L-aspartic acid : An N-acyl-L-aspartic acid in which the acyl group is specified as acetyl. | 2.45 | 2 | 0 | N-acetyl-L-amino acid; N-acyl-L-aspartic acid | antioxidant; human metabolite; mouse metabolite; nutraceutical; rat metabolite |
estradiol 3,17-disulfate estradiol 3,17-disulfate: RN given refers to (17beta)-isomer | 2.03 | 1 | 0 | steroid sulfate | |
betamipron [no description available] | 2.06 | 1 | 0 | organonitrogen compound; organooxygen compound | |
equol Equol: A non-steroidal ESTROGEN generated when soybean products are metabolized by certain bacteria in the intestines. | 2.15 | 1 | 0 | hydroxyisoflavans | |
sulcotrione sulcotrione: a bleaching herbicide. sulcotrione : An aromatic ketone that is cyclohexane-1,3-dione substituted by a 2-chloro-4-(methylsulfonyl)benzoyl group at position 2. | 1.98 | 1 | 0 | aromatic ketone; beta-triketone; cyclohexanones; sulfone | carotenoid biosynthesis inhibitor; environmental contaminant; herbicide; xenobiotic |
3-hydroxybutyric acid (R)-3-hydroxybutyric acid : The R-enantiomer of 3-hydroxybutyric acid. Involved in the synthesis and degradation of ketone bodies, it can be used as an energy source by the brain during hypoglycaemia, and for the synthesis of biodegradable plastics. It is a sex pheremone in the European spider Linyphia triangularis. | 2.03 | 1 | 0 | 3-hydroxybutyric acid; ketone body | fungal metabolite; human metabolite; pheromone |
indole-3-lactic acid indole-3-lactic acid: RN given refers to cpd without isomeric designation. 3-(indol-3-yl)lactic acid : A hydroxy monocarboxylic acid that is lactic acid substituted by a 1H-indol-3-yl group at position 3. It is a metabolite of tryptophan. | 1.96 | 1 | 0 | hydroxy monocarboxylic acid; indol-3-yl carboxylic acid | human metabolite |
(S)-3-hydroxybutyric acid (S)-3-hydroxybutyric acid : The S-enantiomer of 3-hydroxybutyric acid; a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. | 2.45 | 2 | 0 | 3-hydroxybutyric acid | |
N-Acetyl-DL-aspartic acid [no description available] | 2.03 | 1 | 0 | aspartic acid derivative | |
2-hydroxyisovaleric acid 2-hydroxyisovaleric acid: RN given refers to parent cpd without isomeric designation. 2-hydroxy-3-methylbutyric acid : A valine derivative that is valine in which the amino group has been replaced by a hydroxy group. | 2.03 | 1 | 0 | 2-hydroxy monocarboxylic acid | human metabolite |
nitisinone [no description available] | 4.04 | 5 | 0 | (trifluoromethyl)benzenes; C-nitro compound; cyclohexanones; mesotrione | EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor |
s-(2-benzothiazolyl)cysteine S-(2-benzothiazolyl)cysteine: RN given refers to (L)-isomer; structure given in first source | 1.97 | 1 | 0 | | |
dopachrome dopachrome: cyclization product of L-DOPA | 1.99 | 1 | 0 | orthoquinones | |
5,6-dihydroxy-2-indolylcarboxylic acid 5,6-dihydroxyindole-2-carboxylic acid : A dihydroxyindole that is indole-2-carboxylic acid substituted by hydroxy groups at positions 5 and 6. | 1.99 | 1 | 0 | dihydroxyindole | mouse metabolite |
tyrosyl-glycyl-glycine tyrosyl-glycyl-glycine: RN given refers to L-isomer; this may not be the same as IMREG-1. Tyr-Gly-Gly : A tripeptide composed of one L-tyrosine and two glycine residues joined in sequence. | 1.99 | 1 | 0 | tripeptide zwitterion; tripeptide | metabolite |
methotrexate [no description available] | 2.03 | 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 |
ferene-s Ferene-S: used for serum iron determinations | 2.01 | 1 | 0 | | |
proline Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 2 | 1 | 0 | amino acid zwitterion; glutamine family amino acid; L-alpha-amino acid; proline; proteinogenic amino acid | algal metabolite; compatible osmolytes; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
hawkinsin hawkinsin: structure. hawkinsin : A cysteine derivative that is cysteine in which the thiol group is substituted by a [2-(carboxymethyl)-2,5-dihydroxycyclohex-3-en-1-yl]sulfanediyl group. Hawkinsinuria is an inherited disorder which is characterized by the inability to break down the amino acid tyrosine. This results in the finding of certain metabolites in the urine, such as hawkinsin. | 1.98 | 1 | 0 | cycloalkene; cysteine derivative; dicarboxylic acid; diol; secondary allylic alcohol; tertiary allylic alcohol | biomarker; human urinary metabolite |
mesotrione mesotrione: brandname is after the Callistemon (MYRTACEAE) plant it was found in; structure in first source. mesotrione : An aromatic ketone that is cyclohexa-1,3-dione in which one of the hydrogens at position 2 is substituted by a 4-(methanesulfonyl)-2-nitrobenzoyl group. | 2.6 | 1 | 0 | aromatic ketone; beta-triketone; C-nitro compound; sulfone | carotenoid biosynthesis inhibitor; EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor; environmental contaminant; herbicide; xenobiotic |
3-hydroxyglutaric acid 3-hydroxyglutaric acid : A 3 hydroxy carboxylic acid that is glutaric acid which is substituted by a hydroxy group at position 3. It is a diagnostic marker for glutaric aciduria type I. | 2.06 | 1 | 0 | 3-hydroxy carboxylic acid; alpha,omega-dicarboxylic acid | human blood serum metabolite; human urinary metabolite |
5-amino-6-ribitylamino-2,4-(1h,3h)pyrimidinedione 5-amino-6-ribitylamino-2,4-(1H,3H)pyrimidinedione: structure given in first source. 5-amino-6-(D-ribitylamino)uracil : An aminouracil that is D-ribitol in which the hydroxy group at position 1 is substituted by the 6-amino group of 5,6-diaminouracil. Early intermediate in bacterial riboflavin synthesis. | 1.98 | 1 | 0 | aminouracil; hydroxypyrimidine | Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
benzofurans Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring. | 2.15 | 1 | 0 | | |
alpha-hydroxyglutarate, (l)-isomer [no description available] | 2.06 | 1 | 0 | 2-hydroxyglutaric acid | |
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. | 2.03 | 1 | 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. | 2.03 | 1 | 0 | cyclodextrin | |
fumaric acid fumaric acid: see also record for ferrous fumarate; use FUMARATES for general fumaric acid esters. fumaric acid : A butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. | 2.03 | 1 | 0 | butenedioic acid | food acidity regulator; fundamental metabolite; geroprotector |
riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms). | 1.98 | 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 |
bromochloroacetic acid Keratins: A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.. bromochloroacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is replaced by bromine while a second is replaced by chlorine. A low-melting (27.5-31.5degreeC), hygroscopic crystalline solid, it can be formed during the disinfection (by chlorination) of water that contains bromide ions and organic matter, so can occur in drinking water as a byproduct of the disinfection process. | 1.96 | 1 | 0 | 2-bromocarboxylic acid; monocarboxylic acid; organochlorine compound | |
stilbenes Stilbenes: Organic compounds that contain 1,2-diphenylethylene as a functional group.. trans-stilbene : The trans-isomer of stilbene. | 2.15 | 1 | 0 | stilbene | |
4-iodo-6-phenylpyrimidine 4-iodo-6-phenylpyrimidine: acts on macrophage migration inhibitory factor; structure in first source. 4-iodo-6-phenylpyrimidine : A member of the class of pyrimidines carrying iodo and phenyl substituents at positions 4 and 6 respectively. | 2.05 | 1 | 0 | biaryl; organoiodine compound; pyrimidines | antineoplastic agent; apoptosis inducer; macrophage migration inhibitory factor inhibitor |
estrone sulfate estrone sulfate: sulfoconjugated estrone; RN given refers to parent cpd | 2.03 | 1 | 0 | 17-oxo steroid; steroid sulfate | human metabolite; mouse metabolite |
dinoprostone prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins. | 2.03 | 1 | 0 | prostaglandins E | human metabolite; mouse metabolite; oxytocic |
12-oxophytodienoic acid 12-oxophytodienoic acid: structure given in first source; a jasmonate precursor that induces phytoalexin synthesis | 2.01 | 1 | 0 | carbocyclic fatty acid; olefinic fatty acid; oxo carboxylic acid | |
jasmonic acid jasmonic acid: a derivative of alpha-linolenic acid that has a role in plant response to herbivory analogous to the role of prostanoids in inflammation in mammals;. jasmonic acid : An oxo monocarboxylic acid that is (3-oxocyclopentyl)acetic acid substituted by a (2Z)-pent-2-en-1-yl group at position 2 of the cyclopentane ring. | 2.01 | 1 | 0 | oxo monocarboxylic acid | jasmonates; plant metabolite |
estradiol-17 beta-glucuronide 17beta-estradiol 17-glucosiduronic acid : A steroid glucosiduronic acid that consists of 17beta-estradiol having a beta-glucuronyl residue attached at position 17 via a glycosidic linkage. | 2.06 | 1 | 0 | 3-hydroxy steroid; steroid glucosiduronic acid | |
3',4',7-trihydroxyisoflavone 3',4',7-trihydroxyisoflavone: from Streptomyces sp OH-1049; structure given in first source. 3',4',7-trihydroxyisoflavone : A 7-hydroxyisoflavone that is daidzein substituted by a hydroxy group at position 3'. | 2.05 | 1 | 0 | 7-hydroxyisoflavones | antineoplastic agent; EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor; metabolite |
nateglinide Nateglinide: A phenylalanine and cyclohexane derivative that acts as a hypoglycemic agent by stimulating the release of insulin from the pancreas. It is used in the treatment of TYPE 2 DIABETES.. nateglinide : An N-acyl-D-phenylalanine resulting from the formal condensation of the amino group of D-phenylalanine with the carboxy group of trans-4-isopropylcyclohexanecarboxylic acid. An orally-administered, rapidly-absorbed, short-acting insulinotropic agent, it is used for the treatment of type 2 diabetes mellitus. | 2.06 | 1 | 0 | phenylalanine derivative | |
5-deazaflavin [no description available] | 1.98 | 1 | 0 | pyridopyrimidine | |
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. | 1.97 | 1 | 0 | cysteinium | fundamental metabolite |
salvianolic acid B salvianolic acid B: isolated from Salvia miltiorrhiza. salvianolic acid B : A member of the class of 1-benzofurans that is an antioxidant and free radical scavenging compound extracted from S. miltiorrhiza | 2.15 | 1 | 0 | 1-benzofurans; catechols; dicarboxylic acid; enoate ester; polyphenol | anti-inflammatory agent; antidepressant; antineoplastic agent; antioxidant; apoptosis inducer; autophagy inhibitor; cardioprotective agent; hepatoprotective agent; hypoglycemic agent; neuroprotective agent; osteogenesis regulator; plant metabolite |
myrigalone a myrigalone A: a phytotoxin isolated from the fruit of Myrica gale; structure in first source | 2.13 | 1 | 0 | monoterpenoid | |
cysteinyldopa Cysteinyldopa: Found in large amounts in the plasma and urine of patients with malignant melanoma. It is therefore used in the diagnosis of melanoma and for the detection of postoperative metastases. Cysteinyldopa is believed to be formed by the rapid enzymatic hydrolysis of 5-S-glutathionedopa found in melanin-producing cells. | 1.97 | 1 | 0 | catecholamine; zwitterion | |
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 1.96 | 1 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |
sodium hypochlorite Sodium Hypochlorite: It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed). sodium hypochlorite : An inorganic sodium salt in which hypochlorite is the counterion. It is used as a bleaching and disinfecting agent and is commonly found in household bleach. | 1.99 | 1 | 0 | inorganic sodium salt | bleaching agent; disinfectant |
penicillin g sodium [no description available] | 2.03 | 1 | 0 | organic sodium salt | |
methyl jasmonate [no description available] | 2.01 | 1 | 0 | | |
ascorbic acid Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms. | 1.96 | 1 | 0 | ascorbic acid; vitamin C | coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent |
novobiocin Novobiocin: An antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin. Novobiocin binds to DNA gyrase, and blocks adenosine triphosphatase (ATPase) activity. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p189). novobiocin : A coumarin-derived antibiotic obtained from Streptomyces niveus. | 2.78 | 3 | 0 | carbamate ester; ether; hexoside; hydroxycoumarin; monocarboxylic acid amide; monosaccharide derivative; phenols | antibacterial agent; antimicrobial agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; Escherichia coli metabolite; hepatoprotective agent |
citrinin Citrinin: Antibiotic and mycotoxin from Aspergillus niveus and Penicillium citrinum. | 2.06 | 1 | 0 | | |
clorobiocin clorobiocin: chlorine-containing antibiotic related to novobiocin | 2.78 | 3 | 0 | | |
flavin mononucleotide Flavin Mononucleotide: A coenzyme for a number of oxidative enzymes including NADH DEHYDROGENASE. It is the principal form in which RIBOFLAVIN is found in cells and tissues. | 2.41 | 1 | 0 | | |
coelenterazine coelenterazine: active group in AEQUORIN, a coelenterate luciferin. Oplophorus luciferin : An imidazopyrazine that is imidazo[1,2-a]pyrazin-3(7H)-one in which positions 2, 6, and 8 are substituted by 4-hydroxybenzyl, 4-hydroxyphenyl, and benzyl groups, respectively. | 2.41 | 1 | 0 | | |
dehydrocoelenterazine dehydrocoelenterazine: structure in first source | 2.41 | 1 | 0 | | |