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. | 2.17 | 1 | 0 | hydroxytryptophan | human metabolite; neurotransmitter |
gallic acid gallate : A trihydroxybenzoate that is the conjugate base of gallic acid. | 2.08 | 1 | 0 | trihydroxybenzoic acid | antineoplastic agent; antioxidant; apoptosis inducer; astringent; cyclooxygenase 2 inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; geroprotector; human xenobiotic metabolite; plant metabolite |
indole [no description available] | 2.91 | 4 | 0 | indole; polycyclic heteroarene | Escherichia coli 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 indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 2.38 | 2 | 0 | indole-3-acetic acids; monocarboxylic acid | auxin; human metabolite; mouse metabolite; plant hormone; plant metabolite |
melatonin [no description available] | 9.48 | 6 | 0 | acetamides; tryptamines | anticonvulsant; central nervous system depressant; geroprotector; hormone; human metabolite; immunological adjuvant; mouse metabolite; radical scavenger |
n-acetylserotonin N-acetylserotonin : An N-acylserotonin resulting from the formal condensation of the primary amino group of serotonin with the carboxy group of acetic acid. | 2.21 | 1 | 0 | acetamides; N-acylserotonin; phenols | antioxidant; human metabolite; mouse metabolite; tropomyosin-related kinase B receptor agonist |
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. | 2.21 | 1 | 0 | pyridinemonocarboxylic acid | human metabolite; MALDI matrix material |
tryptophan [no description available] | 2.21 | 1 | 0 | alpha-amino acid; amino acid zwitterion; aminoalkylindole; aromatic amino acid; polar amino acid | Daphnia magna metabolite |
tryptamine [no description available] | 2.21 | 1 | 0 | aminoalkylindole; aralkylamino compound; indole alkaloid; tryptamines | human metabolite; mouse metabolite; plant metabolite |
uracil 2,4-dihydroxypyrimidine: a urinary biomarker for bipolar disorder | 2.21 | 1 | 0 | pyrimidine nucleobase; pyrimidone | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; prodrug; Saccharomyces cerevisiae metabolite |
5-methoxytryptamine 5-Methoxytryptamine: Serotonin derivative proposed as potentiator for hypnotics and sedatives.. 5-methoxytryptamine : A member of the class of tryptamines that is the methyl ether derivative of serotonin. | 2.79 | 3 | 0 | aromatic ether; primary amino compound; tryptamines | 5-hydroxytryptamine 2A receptor agonist; 5-hydroxytryptamine 2B receptor agonist; 5-hydroxytryptamine 2C receptor agonist; antioxidant; cardioprotective agent; human metabolite; mouse metabolite; neuroprotective agent; radiation protective agent; serotonergic agonist |
6-methoxytryptoline 6-methoxytryptoline: RN given refers to parent cpd; structure | 2.07 | 1 | 0 | | |
oxyquinoline Oxyquinoline: An antiseptic with mild fungistatic, bacteriostatic, anthelmintic, and amebicidal action. It is also used as a reagent and metal chelator, as a carrier for radio-indium for diagnostic purposes, and its halogenated derivatives are used in addition as topical anti-infective agents and oral antiamebics.. quinolin-8-ol : A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes. | 2.21 | 1 | 0 | monohydroxyquinoline | antibacterial agent; antifungal agrochemical; antiseptic drug; iron chelator |
theophylline [no description available] | 2.21 | 1 | 0 | dimethylxanthine | adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent |
chlorpromazine Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.. chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety. | 1.98 | 1 | 0 | organochlorine compound; phenothiazines; tertiary amine | anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug |
n-(2-aminoethyl)-5-isoquinolinesulfonamide [no description available] | 3.16 | 1 | 0 | | |
ha 1004 N-(2-guanidinoethyl)-5-isoquinolinesulfonamide: structure given in first source | 3.16 | 1 | 0 | isoquinolines | |
harmaline Harmaline: A beta-carboline alkaloid isolated from seeds of PEGANUM.. harmaline : A harmala alkaloid in which the harman skeleton is methoxy-substituted at C-7 and has been reduced across the 3,4 bond. | 2.07 | 1 | 0 | harmala alkaloid | oneirogen |
harmalol harmalol: inhibitor of rat liver microsomal UDP-glucuronyltransferase; RN given refers to parent cpd; structure. harmalol : A harmala alkaloid in which the harman skeleton is hydroxy-substituted at C-7 and has been reduced across the 3,4 bond. | 2.07 | 1 | 0 | harmala alkaloid | algal metabolite; EC 1.4.3.4 (monoamine oxidase) inhibitor |
methoxyamine methoxyamine: analytical reagent for aldehydes and ketones; strong irritant, can probably produce methemoglobinemia; RN given refers to parent cpd; structure | 2.07 | 1 | 0 | organooxygen compound | |
propranolol Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.. propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3. | 2.21 | 1 | 0 | naphthalenes; propanolamine; secondary amine | anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic |
sulfamonomethoxine Sulfamonomethoxine: Long acting sulfonamide antibacterial agent. | 2.21 | 1 | 0 | benzenes; sulfonamide | |
sulfapyridine Sulfapyridine: Antibacterial, potentially toxic, used to treat certain skin diseases.. sulfapyridine : A sulfonamide consisting of pyridine with a 4-aminobenzenesulfonamido group at the 2-position. | 2.21 | 1 | 0 | pyridines; substituted aniline; sulfonamide antibiotic; sulfonamide | antiinfective agent; dermatologic drug; drug allergen; environmental contaminant; xenobiotic |
trifluperidol Trifluperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It is used in the treatment of PSYCHOSES including MANIA and SCHIZOPHRENIA. (From Martindale, The Extra Pharmacopoeia, 30th ed, p621) | 1.98 | 1 | 0 | aromatic ketone | |
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. | 8.47 | 2 | 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 |
quinoline [no description available] | 1.98 | 1 | 0 | azaarene; mancude organic heterobicyclic parent; ortho-fused heteroarene; quinolines | |
quinaldic acid [no description available] | 2.21 | 1 | 0 | quinolinemonocarboxylic acid | human metabolite; Saccharomyces cerevisiae metabolite |
2-methylindole 2-methylindole: SKATOLE refers to 3-methylindole; RN given refers to parent cpd; structure. 2-methyl-1H-indole : A methylindole that is 1H-indole substituted by a methyl group at position 2. | 2.07 | 1 | 0 | methylindole | |
2-aminopyrimidine pyrimidin-2-amine : An aminopyrimidine carrying an amino group at position 2.. aminopyrimidine : A member of the class of pyrimidines that is pyrimidine substituted by at least one amino group and its derivatives. | 2.21 | 1 | 0 | aminopyrimidine | |
yohimbine Yohimbine: A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION.. yohimbine : An indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina. | 1.98 | 1 | 0 | methyl 17-hydroxy-20xi-yohimban-16-carboxylate | alpha-adrenergic antagonist; dopamine receptor D2 antagonist; serotonergic antagonist |
7-azaindole [no description available] | 2.02 | 1 | 0 | pyrrolopyridine | |
galantamine Galantamine: A benzazepine derived from norbelladine. It is found in GALANTHUS and other AMARYLLIDACEAE. It is a cholinesterase inhibitor that has been used to reverse the muscular effects of GALLAMINE TRIETHIODIDE and TUBOCURARINE and has been studied as a treatment for ALZHEIMER DISEASE and other central nervous system disorders.. galanthamine : A benzazepine alkaloid isolated from certain species of daffodils. | 2.07 | 1 | 0 | benzazepine alkaloid fundamental parent; benzazepine alkaloid; organic heterotetracyclic compound; tertiary amino compound | antidote to curare poisoning; cholinergic drug; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; plant metabolite |
indirubin [no description available] | 2.02 | 1 | 0 | | |
indigo [no description available] | 2.02 | 1 | 0 | hydroxyindoles | |
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. | 2.21 | 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. | 1.93 | 1 | 0 | tertiary amine; tryptamine alkaloid | coral metabolite; hallucinogen |
2,4-pyridinedicarboxylic acid lutidinic acid : A pyridinedicarboxylic acid carrying carboxy groups at positions 2 and 4. | 2.21 | 1 | 0 | pyridinedicarboxylic acid | |
thiophene-2-carboxylate thiophene-2-carboxylic acid : A thiophenecarboxylic acid in which the carboxy group is located at position 2. | 2.21 | 1 | 0 | thiophenecarboxylic acid | |
6-hydroxyquinoline quinolin-6-ol : A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 6. | 2.21 | 1 | 0 | monohydroxyquinoline | |
5-methylindole [no description available] | 2.02 | 1 | 0 | | |
methoxytryptophol [no description available] | 1.98 | 1 | 0 | indoles | |
pyrrole-2-carboxaldehyde 2-pyrrolecarboxaldehyde: structure in first source. pyrrole-2-carboxaldehyde : A pyrrole carrying a formyl substituent at the 2-position. | 2.21 | 1 | 0 | 1,3-thiazole-2-carbaldehyde; pyrroles | |
sodium hydroxide Sodium Hydroxide: A highly caustic substance that is used to neutralize acids and make sodium salts. (From Merck Index, 11th ed) | 2.03 | 1 | 0 | alkali metal hydroxide | |
6-methoxyquinoline 6-methoxyquinoline: RN given refers to parent cpd. 6-methoxyquinoline : An aromatic ether that is quinoline substituted at position 6 by a methoxy group. | 2.42 | 2 | 0 | aromatic ether; quinolines | |
3-quinuclidinol quinuclidin-3-Ol: structure in first source | 1.98 | 1 | 0 | quinuclidines; secondary alcohol; tertiary amine | |
5-hydroxyindole [no description available] | 8.02 | 4 | 0 | hydroxyindoles | human metabolite |
neocuproine neocuproine: Spectrophotometric determination of copper and ultramicro blood sugar determinations; structure; RN given refers to parent cpd. neocuproine : A member of the class of phenanthrolines that is 1,10-phenanthroline bearing two methyl substituents at positions 2 and 9. | 2.21 | 1 | 0 | phenanthrolines | chelator; copper chelator |
prodipin [no description available] | 1.98 | 1 | 0 | | |
isocytosine 2-amino-4-hydroxypyrimidine : An aminopyrimidine in which the pyrimidine ring bears amino and hydroxy substituents at positions 2 and 4, respectively. | 2.21 | 1 | 0 | aminopyrimidine; pyrimidine nucleobase; pyrimidone | |
harmol harmol: harmol is oxidized form of alkaloid harmolol; RN given refers to parent cpd; structure | 1.98 | 1 | 0 | harmala alkaloid | |
n-acetylhistamine N-acetylhistamine : A member of the class of acetamides that is acetamide comprising histamine having an acetyl group attached to the side-chain amino function. | 2.21 | 1 | 0 | acetamides; imidazoles | human metabolite |
tetrahydroalstonine tetrahydroalstonine : A heteropentacyclic compound that is (20alpha)-16,17-didehydro-18-oxayohimban which is substituted at position 16 by a methoxycarbonyl group and at position 19 by a methyl group. It is a metabolite found in several plant species. | 1.98 | 1 | 0 | methyl ester; organic heteropentacyclic compound; yohimban alkaloid | plant metabolite |
indole-2-carboxylic acid [no description available] | 2.21 | 1 | 0 | indolyl carboxylic acid | |
indole-5-carboxylic acid [no description available] | 2.07 | 1 | 0 | indolecarboxylic acid | plant metabolite |
4-hydroxyindole hydroxyindoles : Any member of the class of indoles carrying at least one hydroxy group. | 2.07 | 1 | 0 | hydroxyindoles; phenols | |
5-aminoindole 5-aminoindole: structure in first source. 1H-indol-5-amine : An indolamine carrying an amino group at position 5. | 2.02 | 1 | 0 | indolamine | |
5-chloroindole-2-carboxylate 5-chloroindole-2-carboxylate: N-methyl-D-aspartate glycine site antagonist | 2.21 | 1 | 0 | indolyl carboxylic acid | |
corynanthine Corynanthine: A stereoisomer of yohimbine. | 1.98 | 1 | 0 | yohimban alkaloid | |
benzo(b)thiophene-2-carboxylic acid benzo(b)thiophene-2-carboxylic acid: for prevention of osteoporosis; structure given in first source | 2.21 | 1 | 0 | | |
tryptoline tryptoline: neurotoxic factor that may be involved in development of Parkinson's disease; enzymatic prep from human brain converts tryptamine to tryptoline; RN given refers to parent cpd; structure | 2.52 | 2 | 0 | beta-carbolines | |
5'-thioadenosine 5'-thioadenosine: structure given in first source | 3.16 | 1 | 0 | | |
cki 7 N-(2-aminoethyl)-5-chloroisoquinoline-8-sulfonamide: casein kinase I inhibitor; structure given in first source. N-(2-aminoethyl)-5-chloroisoquinoline-8-sulfonamide : A member of the class of isoquinolines that is isoquinoline-8-sulfonamide which is substituted by chlorine at position 5 and in which the sulfonamide nitrogen is substituted by a 2-aminoethyl group. It is an inhibitor of casein kinase I. | 3.16 | 1 | 0 | isoquinolines; organochlorine compound; primary amino compound; sulfonamide | EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor |
imidazole-4-acetic acid hydrochloride [no description available] | 2.21 | 1 | 0 | | |
quinidine Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.. quinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy. | 1.98 | 1 | 0 | cinchona alkaloid | alpha-adrenergic antagonist; anti-arrhythmia drug; antimalarial; drug allergen; EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor; EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor; muscarinic antagonist; P450 inhibitor; potassium channel blocker; sodium channel blocker |
raubasine ajmalicine : A monoterpenoid indole alkaloid with formula C21H24N2O3, isolated from several Rauvolfia and Catharanthus species. It is a selective alpha1-adrenoceptor antagonist used for the treatment of high blood pressure. | 1.98 | 1 | 0 | methyl ester; monoterpenoid indole alkaloid; organic heteropentacyclic compound | alpha-adrenergic antagonist; antihypertensive agent; vasodilator agent |
6-hydroxyindole 6-hydroxyindole: structure in first source | 2.08 | 1 | 0 | | |
caffeic acid trans-caffeic acid : The trans-isomer of caffeic acid. | 2.08 | 1 | 0 | caffeic acid | geroprotector; mouse metabolite |
lobeline [no description available] | 1.98 | 1 | 0 | | |
Methyl indole-5-carboxylate [no description available] | 2.02 | 1 | 0 | indolyl carboxylic acid | |
quinine [no description available] | 1.98 | 1 | 0 | cinchona alkaloid | antimalarial; muscle relaxant; non-narcotic analgesic |
harmine Harmine: Alkaloid isolated from seeds of PEGANUM HARMALA; ZYGOPHYLLACEAE. It is identical to banisterine, or telepathine, from Banisteria caapi and is one of the active ingredients of hallucinogenic drinks made in the western Amazon region from related plants. It has no therapeutic use, but (as banisterine) was hailed as a cure for postencephalitic PARKINSON DISEASE in the 1920's.. harmine : A harmala alkaloid in which the harman skeleton is methoxy-substituted at C-7. | 2.42 | 2 | 0 | harmala alkaloid | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; metabolite |
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. | 2.42 | 2 | 0 | harmala alkaloid; indole alkaloid fundamental parent; indole alkaloid | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
monorden monorden: inhibits HSP90 Heat-Shock Proteins, DNA topoisomerase VI and human Topoisomerase II | 3.16 | 1 | 0 | cyclic ketone; enone; epoxide; macrolide antibiotic; monochlorobenzenes; phenols | antifungal agent; metabolite; tyrosine kinase inhibitor |
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. | 3.16 | 1 | 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 |
clorobiocin clorobiocin: chlorine-containing antibiotic related to novobiocin | 3.16 | 1 | 0 | | |