| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
5-hydroxytryptophan
5-Hydroxytryptophan: The immediate precursor in the biosynthesis of SEROTONIN from tryptophan. It is used as an antiepileptic and antidepressant.. 5-hydroxytryptophan : A tryptophan derivative that is tryptophan substituted by a hydroxy group at position 5. | 2.46 | 2 | 0 | hydroxytryptophan | human metabolite;
neurotransmitter |
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. | 2.41 | 1 | 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 |
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). | 2.08 | 1 | 0 | alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound | bacterial metabolite;
fossil fuel;
greenhouse gas |
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. | 2.06 | 1 | 0 | aromatic ketone;
non-proteinogenic alpha-amino acid;
substituted aniline | human metabolite |
niacin
Niacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.. vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).. nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group. | 2.41 | 1 | 0 | pyridine alkaloid;
pyridinemonocarboxylic acid;
vitamin B3 | antidote;
antilipemic drug;
EC 3.5.1.19 (nicotinamidase) inhibitor;
Escherichia coli metabolite;
human urinary metabolite;
metabolite;
mouse metabolite;
plant metabolite;
vasodilator agent |
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. | 2.41 | 1 | 0 | pyridinemonocarboxylic acid | human metabolite;
MALDI matrix material |
pyrazinoic acid
pyrazinoic acid: active metabolite of pyrazinamide; structure. pyrazine-2-carboxylic acid : The parent compound of the class of pyrazinecarboxylic acids, that is pyrazine bearing a single carboxy substituent. The active metabolite of the antitubercular drug pyrazinamide. | 2.48 | 2 | 0 | pyrazinecarboxylic acid | antitubercular agent;
drug metabolite |
kynurenic acid
Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool.. kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. | 2.06 | 1 | 0 | monohydroxyquinoline;
quinolinemonocarboxylic acid | G-protein-coupled receptor agonist;
human metabolite;
neuroprotective agent;
nicotinic antagonist;
NMDA receptor antagonist;
Saccharomyces cerevisiae metabolite |
ondansetron
Ondansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties. | 2.06 | 1 | 0 | carbazoles | |
isonicotinic acid
isonicotinic acid : A pyridinemonocarboxylic acid in which the carboxy group is at position 4 of the pyridine ring. | 2.41 | 1 | 0 | pyridinemonocarboxylic acid | algal metabolite;
human metabolite |
primaquine phosphate
[no description available] | 2.21 | 1 | 0 | | |
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. | 1.96 | 1 | 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 |
quinoxalines
quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 6.2 | 31 | 1 | mancude organic heterobicyclic parent;
naphthyridine;
ortho-fused heteroarene | |
pyrroles
1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen. | 2.1 | 1 | 0 | pyrrole;
secondary amine | |
quinoline-4-carboxylic acid
quinoline-4-carboxylic acid: structure given in first source | 2.21 | 1 | 0 | quinolinemonocarboxylic acid | |
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. | 2.07 | 1 | 0 | copper group element atom;
elemental gold | |
olaquindox
olaquindox: used in prevention of swine dysentary; growth promoting additive in pig feed; structure | 2.46 | 2 | 0 | quinoxaline derivative | |
3-aminopyrazine-2-carboxylic acid
[no description available] | 2.41 | 1 | 0 | | |
5-hydroxypyrazinoic acid
5-hydroxypyrazinoic acid: metabolite of pyrazinamide | 2.41 | 1 | 0 | | |
triostin a
triostin A: RN given refers to triostin A; see also record for triostin C | 2.08 | 1 | 0 | | |
tryptophanamide
tryptophanamide: used as inhibitor of chymotrypsin; RN given refers to cpd with unspecified isomeric designation. L-tryptophanamide : An amino acid amide that is the carboxamide of L-tryptophan. | 2.21 | 1 | 0 | amino acid amide;
tryptophan derivative | human metabolite |
3-methylquinoxaline-2-carboxylic acid
3-methylquinoxaline-2-carboxylic acid: cytotoxic and genotoxic | 3.22 | 5 | 0 | | |
n,n'-desoxycarbadox
N,N'-desoxycarbadox: metabolite of carbadox | 1.97 | 1 | 0 | | |
chitosan
[no description available] | 7.08 | 1 | 0 | | |
naproxen sodium
naproxen sodium : An organic sodium salt consisting of equimolar amounts of naproxen(1-) anions and sodium anions. | 2.21 | 1 | 0 | organic sodium salt | antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug |
echinomycin
Echinomycin: A cytotoxic polypeptide quinoxaline antibiotic isolated from Streptomyces echinatus that binds to DNA and inhibits RNA synthesis. | 8.1 | 5 | 0 | cyclodepsipeptide | |
phthalocyanine
phthalocyanine : A tetrapyrrole fundamental parent that consists of four isoindole-type units, with the connecting carbon atoms in the macrocycle replaced by nitrogen. | 2.1 | 1 | 0 | phthalocyanines;
tetrapyrrole fundamental parent | |
quinomycin
quinomycin: RN given refers to cpd with unknown MF; see also echinomycin for quinomycin A: 512-64-1; structure | 2.06 | 1 | 0 | | |
methyl-3-quinoxaline-2-carboxylic acid
methyl-3-quinoxaline-2-carboxylic acid: structure in first source | 2.96 | 4 | 0 | | |
cyadox
cyadox: structure | 3.85 | 2 | 1 | | |
carbadox
Carbadox: An antibacterial agent that has been used in veterinary practice for treating swine dysentery and enteritis and for promoting growth. However, its use has been prohibited in the UK following reports of carcinogenicity and mutagenicity. (From Martindale, The Extra Pharmacopoeia, 30th ed, p125) | 3.28 | 6 | 0 | quinoxaline derivative | |