Substance | Relationship Strength | Studies | Trials | Classes | Roles |
alpha-ketobutyric acid alpha-ketobutyric acid: RN given refers to parent cpd; structure. 2-oxobutanoic acid : A 2-oxo monocarboxylic acid that is the 2-oxo derivative of butanoic acid. | 2.03 | 1 | 0 | 2-oxo monocarboxylic acid; short-chain fatty acid | |
gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 2.61 | 2 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
4-hydroxybenzaldehyde [no description available] | 4 | 3 | 0 | hydroxybenzaldehyde | EC 1.14.17.1 (dopamine beta-monooxygenase) inhibitor; mouse metabolite; plant metabolite |
adenine [no description available] | 2.46 | 2 | 0 | 6-aminopurines; purine nucleobase | Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
benzaldehyde [no description available] | 4.14 | 4 | 0 | benzaldehydes | EC 3.1.1.3 (triacylglycerol lipase) inhibitor; EC 3.5.5.1 (nitrilase) inhibitor; flavouring agent; fragrance; odorant receptor agonist; 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). | 2.13 | 1 | 0 | alkane; gas molecular entity; mononuclear parent hydride; one-carbon compound | bacterial metabolite; fossil fuel; greenhouse gas |
n(1)-acetylspermidine N(1)-acetylspermidine : An acetylspermidine having the acetyl group at the N1-position. | 2.03 | 1 | 0 | acetylspermidine | Escherichia coli metabolite; metabolite |
4-nitrobenzaldehyde 4-nitrobenzaldehyde: RN given refers to parent cpd. 4-nitrobenzaldehyde : A C-nitro compound that is benzaldehyde substituted at the para-position with a nitro group. | 4 | 3 | 0 | benzaldehydes; C-nitro compound | |
cytosine [no description available] | 2.04 | 1 | 0 | aminopyrimidine; pyrimidine nucleobase; pyrimidone | 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. | 2.08 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
hydroxylamine amino alcohol : An alcohol containing an amino functional group in addition to the alcohol-defining hydroxy group. | 2.21 | 1 | 0 | hydroxylamines | algal metabolite; bacterial xenobiotic metabolite; EC 1.1.3.13 (alcohol oxidase) inhibitor; EC 4.2.1.22 (cystathionine beta-synthase) inhibitor; EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor; nitric oxide donor; nucleophilic reagent |
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. | 2.78 | 3 | 0 | metal allergen; nickel group element atom | epitope; micronutrient |
niacinamide nicotinamide : A pyridinecarboxamide that is pyridine in which the hydrogen at position 3 is replaced by a carboxamide group. | 2 | 1 | 0 | pyridine alkaloid; pyridinecarboxamide; vitamin B3 | anti-inflammatory agent; antioxidant; cofactor; EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor; EC 3.5.1.98 (histone deacetylase) inhibitor; Escherichia coli metabolite; geroprotector; human urinary metabolite; metabolite; mouse metabolite; neuroprotective agent; Saccharomyces cerevisiae metabolite; Sir2 inhibitor |
phenylacetaldehyde [no description available] | 2.21 | 1 | 0 | alpha-CH2-containing aldehyde; phenylacetaldehydes | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
picolinic acid picolinic acid: iron-chelating agent that inhibits DNA synthesis; may interfere with iron-dependent production of stable free organic radical which is essential for ribonucleotide reductase formation of deoxyribonucleotides; RN given refers to parent cpd; structure in Merck Index, 9th ed, #7206. picolinic acid : A pyridinemonocarboxylic acid in which the carboxy group is located at position 2. It is an intermediate in the metabolism of tryptophan. | 2.08 | 1 | 0 | pyridinemonocarboxylic acid | human metabolite; MALDI matrix material |
putrescine [no description available] | 2.03 | 1 | 0 | alkane-alpha,omega-diamine | antioxidant; fundamental metabolite |
pyridine azine : An organonitrogen compound of general structure RCH=N-N=CHR or RR'C=N-N=CRR'. | 2.08 | 1 | 0 | azaarene; mancude organic heteromonocyclic parent; monocyclic heteroarene; pyridines | environmental contaminant; NMR chemical shift reference compound |
pyridoxal [no description available] | 2.47 | 2 | 0 | hydroxymethylpyridine; methylpyridines; monohydroxypyridine; pyridinecarbaldehyde; vitamin B6 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
spermidine [no description available] | 2.03 | 1 | 0 | polyazaalkane; triamine | autophagy inducer; fundamental metabolite; geroprotector |
uracil 2,4-dihydroxypyrimidine: a urinary biomarker for bipolar disorder | 2.61 | 2 | 0 | pyrimidine nucleobase; pyrimidone | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; prodrug; Saccharomyces cerevisiae metabolite |
vanillin Vanilla: A plant genus of the family ORCHIDACEAE that is the source of the familiar flavoring used in foods and medicines (FLAVORING AGENTS). | 2.21 | 1 | 0 | benzaldehydes; monomethoxybenzene; phenols | anti-inflammatory agent; anticonvulsant; antioxidant; flavouring agent; plant metabolite |
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. | 3.31 | 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 |
diazepam Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5. | 1.96 | 1 | 0 | 1,4-benzodiazepinone; organochlorine compound | anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic |
dichlorvos Dichlorvos: An organophosphorus insecticide that inhibits ACETYLCHOLINESTERASE.. dichlorvos : An alkenyl phosphate that is the 2,2-dichloroethenyl ester of dimethyl phosphate. | 2.1 | 1 | 0 | alkenyl phosphate; dialkyl phosphate; organochlorine acaricide; organophosphate insecticide | anthelminthic drug; antibacterial agent; antifungal agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor |
guvacine guvacine: RN given refers to parent cpd. guvacine : A alpha,beta-unsaturated monocarboxylic acid that is nicotinic acid which has been hydrogenated at the 1-2 and 5-6 positions of the pyridine ring. | 2.21 | 1 | 0 | alpha,beta-unsaturated monocarboxylic acid; beta-amino acid; pyridine alkaloid; secondary amino compound; tetrahydropyridine | GABA reuptake inhibitor; plant metabolite |
miltefosine miltefosine: hexadecyl phosphocholine derivative of cisplatin; did not substantially activate HIV long terminal repeat; less toxic than cisplatin. miltefosine : A phospholipid that is the hexadecyl monoester of phosphocholine. | 3.31 | 1 | 0 | phosphocholines; phospholipid | anti-inflammatory agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antiprotozoal drug; apoptosis inducer; immunomodulator; protein kinase inhibitor |
nipecotic acid nipecotic acid: RN given refers to cpd without isomeric designation. nipecotic acid : A piperidinemonocarboxylic acid that is piperidine in which one of the hydrogens at position 3 is substituted by a carboxylic acid group. | 2.21 | 1 | 0 | beta-amino acid; piperidinemonocarboxylic acid | |
no 711 [no description available] | 2.61 | 2 | 0 | diarylmethane | |
oxidopamine Oxidopamine: A neurotransmitter analogue that depletes noradrenergic stores in nerve endings and induces a reduction of dopamine levels in the brain. Its mechanism of action is related to the production of cytolytic free-radicals.. oxidopamine : A benzenetriol that is phenethylamine in which the hydrogens at positions 2, 4, and 5 on the phenyl ring are replaced by hydroxy groups. It occurs naturally in human urine, but is also produced as a metabolite of the drug DOPA (used for the treatment of Parkinson's disease). | 2.08 | 1 | 0 | benzenetriol; catecholamine; primary amino compound | drug metabolite; human metabolite; neurotoxin |
pargyline Pargyline: A monoamine oxidase inhibitor with antihypertensive properties. | 2.1 | 1 | 0 | aromatic amine | |
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. | 2.05 | 1 | 0 | polyazaalkane; tetramine | copper chelator |
benzimidazole 1H-benzimidazole : The 1H-tautomer of benzimidazole. | 2.08 | 1 | 0 | benzimidazole; polycyclic heteroarene | |
n,n-dimethyltryptamine N,N-Dimethyltryptamine: An N-methylated indoleamine derivative and serotonergic hallucinogen which occurs naturally and ubiquitously in several plant species including Psychotria veridis. It also occurs in trace amounts in mammalian brain, blood, and urine, and is known to act as an agonist or antagonist of certain SEROTONIN RECEPTORS.. N,N-dimethyltryptamine : A tryptamine derivative having two N-methyl substituents on the side-chain. | 1.96 | 1 | 0 | tryptamine alkaloid; tryptamines | |
1-naphthaldehyde 1-naphthaldehyde: structure. naphthaldehyde : An aldehyde in which the organyl group is a naphthyl group.. 1-naphthaldehyde : A naphthaldehyde with a formyl group at position 1. | 4 | 3 | 0 | naphthaldehyde | mouse metabolite |
2-naphthaldehyde 2-naphthaldehyde: structure. 2-naphthaldehyde : A naphthaldehyde that is naphthalene substituted by a formyl group at position 2. | 2.61 | 2 | 0 | naphthaldehyde | mouse metabolite |
trifluoroacetic acid Trifluoroacetic Acid: A very strong halogenated derivative of acetic acid. It is used in acid catalyzed reactions, especially those where an ester is cleaved in peptide synthesis.. trifluoroacetic acid : A monocarboxylic acid that is the trifluoro derivative of acetic acid. | 2.13 | 1 | 0 | fluoroalkanoic acid | human xenobiotic metabolite; NMR chemical shift reference compound; reagent |
acrylamide [no description available] | 2.21 | 1 | 0 | acrylamides; N-acylammonia; primary carboxamide | alkylating agent; carcinogenic agent; Maillard reaction product; mutagen; neurotoxin |
rhodamine b rhodamine B: RN & N1 from 9th CI Form Index; RN given refers to parent cpd; structure in Merck Index, 9th ed, #7973; TETRAETHYLRHODAMINE was see RHODAMINES 1975-93; use RHODAMINES to search TETRAETHYLRHODAMINE 1975-93. rhodamine B : An organic chloride salt having N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium as the counterion. An amphoteric dye commonly used as a fluorochrome. | 2.04 | 1 | 0 | organic chloride salt; xanthene dye | fluorescent probe; fluorochrome; histological dye |
2-chlorobenzaldehyde [no description available] | 2.21 | 1 | 0 | | |
salicylaldehyde o-hydroxybenzaldehyde: structure in first source | 2.21 | 1 | 0 | hydroxybenzaldehyde | nematicide; plant metabolite |
isatin tribulin: endogenous MONOAMINE OXIDASE inhibitory activity extractable into ethyl acetate found in brain and many mammalian tissues and fluids; ISATIN is a major component; produced in excess following alcohol withdrawal; | 2.07 | 1 | 0 | indoledione | EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
hydratropic aldehyde 2-phenylpropanal : A member of the class of phenylacetaldehydes that is phenylacetaldehyde in which a hydrogen alpha to the aldehyde carbonyl group has been replaced by a methyl group. The major species at pH 7.3. | 2.21 | 1 | 0 | phenylacetaldehydes | |
methyl acrylate [no description available] | 2.08 | 1 | 0 | enoate ester | |
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. | 2.52 | 2 | 0 | aldehyde; furans | Maillard reaction product; metabolite |
thiophene-2-carboxaldehyde thiophene-2-carboxaldehyde: structure in first source. formylthiophene : An aldehyde that is thiophene substituted by a formyl group at position 2. | 2.52 | 2 | 0 | aldehyde; thiophenes | metabolite |
acetophenone acetophenone : A methyl ketone that is acetone in which one of the methyl groups has been replaced by a phenyl group. | 3.31 | 1 | 0 | acetophenones | animal metabolite; photosensitizing agent; xenobiotic |
3-nitrobenzaldehyde [no description available] | 2.61 | 2 | 0 | | |
4-bromoacetophenone [no description available] | 3.31 | 1 | 0 | | |
4-chloroacetophenone [no description available] | 3.31 | 1 | 0 | | |
4-(dimethylamino)benzaldehyde p-dimethylaminobenzaldehyde: structure in first source. 4-(dimethylamino)benzaldehyde : A member of the class of benzaldehydes that is benzaldehyde carrying a dimethylamino substituent at position 4. Used as an indicator for detection of indoles and hydrazine. | 2.21 | 1 | 0 | benzaldehydes; substituted aniline; tertiary amino compound | chromogenic compound |
phenylisothiocyanate phenylisothiocyanate: structure. phenyl isothiocyanate : An isothiocyanate having a phenyl group attached to the nitrogen; used for amino acid sequencing in the Edman degradation. | 3.31 | 1 | 0 | isothiocyanate | allergen; reagent |
3-phenylpropanal 3-phenylpropanal : A benzene which is substituted by a 3-oxopropyl group at position 1. | 2.02 | 1 | 0 | aldehyde; benzenes | flavouring agent; plant metabolite |
4-methylbenzaldehyde p-tolualdehyde : A tolualdehyde compound with the methyl substituent at the 4-position. | 3.71 | 2 | 0 | tolualdehyde | plant metabolite |
4-chlorobenzaldehyde [no description available] | 3.71 | 2 | 0 | | |
3-hydroxybutanal [no description available] | 2.08 | 1 | 0 | | |
isoquinoline [no description available] | 1.96 | 1 | 0 | azaarene; isoquinolines; mancude organic heterobicyclic parent; ortho-fused heteroarene | |
piperonal piperonal: has been used as a pediculicide; structure. piperonal : An arenecarbaldehyde that is 1,3-benzodioxole substituted by a formyl substituent at position 5. It has been isolated from Piper nigrum. | 2.21 | 1 | 0 | arenecarbaldehyde; benzodioxoles | fragrance; insect repellent; plant metabolite |
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. | 2.21 | 1 | 0 | dimethoxybenzene; hydroxybenzaldehyde | hypoglycemic agent; plant metabolite |
2-Methoxybenzaldehyde [no description available] | 2.61 | 2 | 0 | carbonyl compound | |
2,6-diaminopyridine 2,6-diaminopyridine: structure in first source | 2.11 | 1 | 0 | | |
triethylenediamine triethylenediamine: RN given refers to parent cpd. triethylenediamine : An organic heterobicylic compound that is piperazine with an ethane-1,2-diyl group forming a bridge between N1 and N4. It is typically used as a catalyst in polymerization reactions. | 2.08 | 1 | 0 | bridged compound; diamine; saturated organic heterobicyclic parent; tertiary amino compound | antioxidant; catalyst; reagent |
indole-3-carbaldehyde indole-3-carbaldehyde: metabolite of tryptophan; structure. indole-3-carbaldehyde : A heteroarenecarbaldehyde that is indole in which the hydrogen at position 3 has been replaced by a formyl group. | 2.07 | 1 | 0 | heteroarenecarbaldehyde; indole alkaloid; indoles | bacterial metabolite; human xenobiotic metabolite; marine metabolite; plant metabolite |
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. | 1.96 | 1 | 0 | tertiary amine; tryptamine alkaloid | coral metabolite; hallucinogen |
3-pyridinaldehyde pyridine-3-carbaldehyde : A pyridinecarbaldehyde that is pyridine substituted by a formyl group at position 3. | 2.96 | 4 | 0 | pyridinecarbaldehyde | |
2-methylbenzaldehyde 2-methylbenzaldehyde: structure in first source. o-tolualdehyde : A tolualdehyde compound with the methyl substituent at the 2-position. | 2.21 | 1 | 0 | tolualdehyde | plant metabolite |
2-nitrobenzaldehyde 2-nitrobenzaldehyde: structure given in first source. 2-nitrobenzaldehyde : Benzaldehyde substituted at the ortho-position with a nitro group. | 2.61 | 2 | 0 | benzaldehydes; C-nitro compound | |
4,4'-bipyridyl 4,4'-bipyridine : A bipyridine in which the two pyridine moieties are linked by a bond between positions C-4 and C-4'. | 2.05 | 1 | 0 | bipyridine | |
methyl isothiocyanate methyl isothiocyanate: structure. methyl isothiocyanate : An isothiocyanate having a methyl group attached to the nitrogen. It is also the active nematicide of the pronematicide metam-sodium. | 2.07 | 1 | 0 | isothiocyanate | fumigant; lachrymator; nematicide |
3-methoxybenzaldehyde 3-methoxybenzaldehyde : A member of the class of benzaldehydes in which the hydrogen at position 3 of benzaldehyde has been replaced by a methoxy group. | 2.21 | 1 | 0 | benzaldehydes; monomethoxybenzene | Brassica napus metabolite |
2-pyrrolidone 2-pyrrolidone: RN given refers to parent cpd. pyrrolidin-2-one : The simplest member of the class of pyrrolidin-2-ones, consisting of pyrrolidine in which the hydrogens at position 2 are replaced by an oxo group. The lactam arising by the formal intramolecular condensation of the amino and carboxy groups of gamma-aminobutyric acid (GABA). | 2.07 | 1 | 0 | pyrrolidin-2-ones | metabolite; polar solvent |
3-methylbenzaldehyde 3-methylbenzaldehyde: structure in first source. m-tolualdehyde : A tolualdehyde compound with the methyl substituent at the 3-position. | 2.21 | 1 | 0 | tolualdehyde | plant metabolite |
2-amino-5-chlorobenzophenone 2-amino-5-chlorbenzophenone: structure given in first source | 3.31 | 1 | 0 | | |
diphenylacetaldehyde diphenylacetaldehyde: structure in first source | 2.61 | 2 | 0 | | |
pyrrole-2-carboxaldehyde 2-pyrrolecarboxaldehyde: structure in first source. pyrrole-2-carboxaldehyde : A pyrrole carrying a formyl substituent at the 2-position. | 2.52 | 2 | 0 | 1,3-thiazole-2-carbaldehyde; pyrroles | |
2-acetylpyridine 2-acetylpyridine: structure in first source | 2.4 | 2 | 0 | aromatic ketone | |
1,3-xylenediamine 1,3-xylenediamine: structure given in first source | 2.08 | 1 | 0 | | |
heliamine heliamine: RN given refers to parent cpd; structure. heliamine : An isoquinoline that is 1,2,3,4-tetrahydroisoquinoline substituted by methoxy groups at positions 6 and 7. | 1.96 | 1 | 0 | aromatic ether; diether; isoquinoline alkaloid; isoquinolines | plant metabolite |
2,2'-diamino-1,1'-dinaphthyl 2,2'-diamino-1,1'-dinaphthyl: structure in first source | 2.02 | 1 | 0 | | |
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. | 7.78 | 3 | 0 | elemental manganese; manganese group element atom | Escherichia coli metabolite; micronutrient |
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. | 2.1 | 1 | 0 | metal allergen; nickel group element atom; platinum group metal atom | |
ruthenium Ruthenium: A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101.07. It is used as a catalyst and hardener for PLATINUM and PALLADIUM. | 2.08 | 1 | 0 | iron group element atom; platinum group metal 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. | 2.31 | 1 | 0 | titanium group element atom | |
cadmium Cadmium: An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.. elemental cadmium : An element in the zinc group of the periodic table with atomic number 48, atomic mass 112, M.P. 321degreeC, and B.P. 765degreeC). An odourless, tasteless, and highly poisonous soft, ductile, lustrous metal with electropositive properties. It has eight stable isotopes: (106)Cd, (108)Cd,(110)Cd, (111)Cd, (112)Cd, (113)Cd, (114)Cd and (116)Cd, with (112)Cd and (114)Cd being the most common. | 2.8 | 3 | 0 | cadmium molecular entity; zinc group element 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. | 2.25 | 1 | 0 | copper group element atom; elemental gold | |
fluorosulfonic acid perfluorosulfonic acid: sulfonated tetrafluoroethylene-based fluoropolymer–copolymer | 2.13 | 1 | 0 | sulfur oxoacid | NMR solvent |
titanium dioxide titanium dioxide: used medically as protectant against externally caused irritation & sunlight; high concentrations of dust may cause irritation to respiratory tract; RN given refers to titanium oxide (TiO2); structure. titanium dioxide : A titanium oxide with the formula TiO2. A naturally occurring oxide sourced from ilmenite, rutile and anatase, it has a wide range of applications. | 2.31 | 1 | 0 | titanium oxides | food colouring |
4-anisaldehyde 4-anisaldehyde: RN given refers to cpd with specified locants for methoxy moieties; structure in Merck, 9th ed, #696. p-methoxybenzaldehyde : A member of the class of benzaldehydes consisting of benzaldehyde itself carrying a methoxy substituent at position 4. | 4 | 3 | 0 | benzaldehydes | bacterial metabolite; human urinary metabolite; insect repellent; plant metabolite |
pyrrolidine [no description available] | 2.08 | 1 | 0 | azacycloalkane; pyrrolidines; saturated organic heteromonocyclic parent | |
alkenes [no description available] | 2.08 | 1 | 0 | | |
norsalsolinol norsalsolinol: rigid dopamine analog; RN given refers to parent cpd; structure. norsalsolinol : An isoquinolinol that is 1,2,3,4-tetrahydroisoquinoline substituted by hydroxy groups at positions 6 and 7. It is present in the dopamine-rich areas of the human brain, including the substantia nigra. | 1.96 | 1 | 0 | isoquinolinol | animal metabolite; apoptosis inducer; human metabolite; marine metabolite |
3-phenoxybenzaldehyde [no description available] | 2.61 | 2 | 0 | | |
tiagabine Tiagabine: A nipecotic acid derivative that acts as a GABA uptake inhibitor and anticonvulsant agent. It is used in the treatment of EPILEPSY, for refractory PARTIAL SEIZURES.. tiagabine : A piperidinemonocarboxylic acid that is (R)-nipecotic acid in which the hydrogen attached to the nitrogen has been replaced by a 1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl group. A GABA reuptake inhibitor, it is used (generally as the hydrochloride salt) for the treatment of epilepsy. | 2.61 | 2 | 0 | beta-amino acid; piperidinemonocarboxylic acid; tertiary amino compound; thiophenes | anticonvulsant; GABA reuptake inhibitor |
norharman norharman: RN given refers to parent cpd. beta-carboline : The parent compound of the beta-carbolines, a tricyclic structure comprising an indole ring system ortho- fused to C-3 and C-4 of a pyridine ring. | 1.96 | 1 | 0 | beta-carbolines; mancude organic heterotricyclic parent | fungal metabolite; marine metabolite |
4-cyanobenzaldehyde [no description available] | 2.21 | 1 | 0 | benzaldehydes | |
1,7-phenanthroline [no description available] | 2.25 | 1 | 0 | phenanthroline | |
4-(trifluoromethyl)benzaldehyde [no description available] | 3.71 | 2 | 0 | benzaldehydes | |
4-fluorobenzaldehyde [no description available] | 3.71 | 2 | 0 | | |
9-anthraldehyde [no description available] | 2.61 | 2 | 0 | | |
gentamicin c1 [no description available] | 3.31 | 1 | 0 | | |
2,2'-dipicolylamine 2,2'-dipicolylamine: structure in first source | 2.49 | 2 | 0 | | |
tris(2-aminoethyl)amine tris(2-aminoethyl)amine: structure given in first source | 2.1 | 1 | 0 | tetramine | |
quinoline-4-carbaldehyde [no description available] | 2.61 | 2 | 0 | | |
2-quinolinecarboxaldehyde 2-quinolinecarboxaldehyde: structure in first source | 2.61 | 2 | 0 | | |
2-bromobenzaldehyde 2-bromobenzaldehyde: structure in first source | 3.71 | 2 | 0 | | |
4-methoxy-1-naphthalaldehyde 4-methoxy-1-naphthalaldehyde: used for fluorometric assays for isozymes of human alcohol dehydrogenase; structure given in first source | 2.61 | 2 | 0 | | |
nicotine (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 2.1 | 1 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic |
fosthiazate fosthiazate: structure in first source | 2.07 | 1 | 0 | organic phosphonate; organothiophosphate insecticide; phosphonic ester | agrochemical; EC 3.1.1.7 (acetylcholinesterase) inhibitor; nematicide |
n-(4,4-diphenyl-3-butenyl)nipecotic acid N-(4,4-diphenyl-3-butenyl)nipecotic acid: structure given in first source | 2.21 | 1 | 0 | diarylmethane | |
1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid: used as a substitute for amino acids in synthetic peptides | 1.96 | 1 | 0 | | |
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. | 2.55 | 2 | 0 | cobalt group element atom; metal allergen | micronutrient |
vitamin b 6 Vitamin B 6: VITAMIN B 6 refers to several PICOLINES (especially PYRIDOXINE; PYRIDOXAL; & PYRIDOXAMINE) that are efficiently converted by the body to PYRIDOXAL PHOSPHATE which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, and aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into PYRIDOXAMINE phosphate. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). Most of vitamin B6 is eventually degraded to PYRIDOXIC ACID and excreted in the urine. | 2.13 | 1 | 0 | | |
beta-carboline-3-carboxylic acid ethyl ester beta-carboline-3-carboxylic acid ethyl ester: isolated from brain tissue & urine; extremely potent displacer of diazepam from brain benzodiazepam receptors; structure in first source | 1.96 | 1 | 0 | beta-carbolines | |
beta-carboline-3-carboxylic acid methyl ester beta-carboline-3-carboxylic acid methyl ester: structure given in first source | 1.96 | 1 | 0 | beta-carbolines | |
phenoxazinone [no description available] | 2.1 | 1 | 0 | | |
propyl beta-carboline-3-carboxylate propyl beta-carboline-3-carboxylate: binds specifically to brain benzodiazepine receptors | 1.96 | 1 | 0 | beta-carbolines | |
gamma-carboline gamma-carboline: RN given refers to parent cpd; structure given in first source | 1.96 | 1 | 0 | pyridoindole | |
biotin vitamin B7 : Any member of a group of vitamers that belong to the chemical structural class called biotins that exhibit biological activity against vitamin B7 deficiency. Vitamin B7 deficiency is very rare in individuals who take a normal balanced diet. Foods rich in biotin are egg yolk, liver, cereals, vegetables (spinach, mushrooms) and rice. Symptoms associated with vitamin B7 deficiency include thinning hair, scaly skin rashes around eyes, nose and mouth, and brittle nails. The vitamers include biotin and its ionized and salt forms. | 2.21 | 1 | 0 | biotins; vitamin B7 | coenzyme; cofactor; Escherichia coli metabolite; fundamental metabolite; human metabolite; mouse metabolite; nutraceutical; prosthetic group; Saccharomyces cerevisiae metabolite |
carboline-3-carboxylic acid [no description available] | 1.96 | 1 | 0 | | |
lilial [no description available] | 2.21 | 1 | 0 | | |
3-cyanoindole [no description available] | 2.07 | 1 | 0 | | |
propargylamine propargylamine: RN given refers to parent cpd; structure | 2.1 | 1 | 0 | | |
2-benzyloxybenzaldehyde [no description available] | 2.61 | 2 | 0 | | |
lentiginosine lentiginosine: from Astragalus lentiginosus | 2.06 | 1 | 0 | indolizines | |
cinnamaldehyde 3-phenylprop-2-enal : A member of the class of cinnamaldehydes that is prop-2-enal in which a hydrogen at position 3 has been replaced by a phenyl group. The configuration of the double bond is not specified; the name "cinnamaldehyde" is widely used to refer to the E (trans) isomer.. (E)-cinnamaldehyde : The E (trans) stereoisomer of cinnamaldehyde, the parent of the class of cinnamaldehydes. | 2.21 | 1 | 0 | 3-phenylprop-2-enal; cinnamaldehydes | antifungal agent; EC 4.3.1.24 (phenylalanine ammonia-lyase) inhibitor; flavouring agent; hypoglycemic agent; plant metabolite; sensitiser; vasodilator agent |
methyl isoquinoline-3-carboxylate [no description available] | 1.96 | 1 | 0 | isoquinolines | |
trithiocyanuric acid trithiocyanuric acid: rubber curative; RN given refers to parent cpd | 2.1 | 1 | 0 | | |
nipecotic acid (R)-nipecotic acid : The (R)-enantiopmer of nipecotic acid. | 2.21 | 1 | 0 | amino acid zwitterion; nipecotic acid | |
quinine [no description available] | 3.31 | 1 | 0 | cinchona alkaloid | antimalarial; muscle relaxant; non-narcotic analgesic |
beta-proline beta-proline: RN given refers to cpd without isomeric designation; structure given in first source | 2.21 | 1 | 0 | | |
harman harman: a beta-carboline; RN given refers to parent cpd; structure. harman : An indole alkaloid fundamental parent with a structure of 9H-beta-carboline carrying a methyl substituent at C-1. It has been isolated from the bark of Sickingia rubra, Symplocus racemosa, Passiflora incarnata, Peganum harmala, Banisteriopsis caapi and Tribulus terrestris, as well as from tobacco smoke. It is a specific, reversible inhibitor of monoamine oxidase A. | 1.96 | 1 | 0 | harmala alkaloid; indole alkaloid fundamental parent; indole alkaloid | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
lead Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb. | 2.08 | 1 | 0 | carbon group element atom; elemental lead; metal atom | neurotoxin |
3-hydroxymethyl-beta-carboline 3-hydroxymethyl-beta-carboline: antagonizes anticonvulsant & anxiolytic actions of diazepam at doses which do not elicit overt behavioral effects in mice | 1.96 | 1 | 0 | beta-carbolines | |
aluminum Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.31 | 1 | 0 | boron group element atom; elemental aluminium; metal atom | |
gallium Gallium: A rare, metallic element designated by the symbol, Ga, atomic number 31, and atomic weight 69.72.. gallium atom : A metallic element predicted as eka-aluminium by Mendeleev in 1870 and discovered by Paul-Emile Lecoq de Boisbaudran in 1875. Named in honour of France (Latin Gallia) and perhaps also from the Latin gallus cock, a translation of Lecoq. | 2.15 | 1 | 0 | boron group element atom | |
sulfur Sulfur: An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine. | 2 | 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. | 2.21 | 1 | 0 | cysteinium | fundamental metabolite |
phosphorus Phosphorus: A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. | 2.04 | 1 | 0 | monoatomic phosphorus; nonmetal atom; pnictogen | macronutrient |
bafilomycin a [no description available] | 2.08 | 1 | 0 | | |
nipecotic acid, (s)-isomer (S)-nipecotic acid : The (S)-enantiomer of nipecotic acid. | 2.21 | 1 | 0 | nipecotic acid | |
3-aminopyridine-2-carboxaldehyde thiosemicarbazone 3-aminopyridine-2-carboxaldehyde thiosemicarbazone: a neuroprotective agent; structure given in first source | 2.25 | 1 | 0 | | |
pymetrozine pymetrozine: an anti-feedant against aphids, whiteflies, and leaf hoppers. pymetrozine : A member of the class of 1,2,4-triazines that is 4,5-dihydro-1,2,4-triazin-3(2H)-one substituted by a methyl group at position 6 and a (pyridin-3-ylmethylidene)amino group at position 4. | 2.6 | 1 | 0 | 1,2,4-triazines; pyridines | antifeedant; environmental contaminant; TRPV channel modulator; xenobiotic |
nikkomycin [no description available] | 2.03 | 1 | 0 | | |
gambogic acid gambogic acid: RN given refers to (1R-(1alpha,1(Z),3abeta,5alpha,11beta,14aS*))-isomer | 3.31 | 1 | 0 | pyranoxanthones | metabolite |
nystatin a1 Nystatin: Macrolide antifungal antibiotic complex produced by Streptomyces noursei, S. aureus, and other Streptomyces species. The biologically active components of the complex are nystatin A1, A2, and A3.. nystatin : A heterogeneous mixture of polyene compounds produced by cultures of Streptomyces noursei. It mainly consists of three biologically active components designated nystatin A1, nystatin A2, and nystatin A3. It is used to treat oral and dermal fungal infections.. nystatin A1 : A polyene macrolide antibiotic; part of the nystatin complex produced by several Streptomyces species. It is an antifungal antibiotic used for the treatment of topical fungal infections caused by a broad spectrum of fungal pathogens comprising yeast-like and filamentous species. | 3.31 | 1 | 0 | nystatins | |
chitosan [no description available] | 2.82 | 2 | 0 | | |
4-hydroxycoumarin 2-hydroxychromone: structure | 3.31 | 1 | 0 | hydroxycoumarin | |
guanine [no description available] | 2.04 | 1 | 0 | 2-aminopurines; oxopurine; purine nucleobase | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
3-methyladenine N3-methyladenine: structure in first source | 2.08 | 1 | 0 | | |