| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
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 |
malonic acid
malonic acid : An alpha,omega-dicarboxylic acid in which the two carboxy groups are separated by a single methylene group.. dicarboxylic acid : Any carboxylic acid containing two carboxy groups. | 2.69 | 3 | 0 | alpha,omega-dicarboxylic acid | human metabolite |
parathion
[no description available] | 2.15 | 1 | 0 | C-nitro compound;
organic thiophosphate;
organothiophosphate insecticide | acaricide;
agrochemical;
avicide;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
mouse 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. | 1.96 | 1 | 0 | alpha,omega-dicarboxylic acid;
C4-dicarboxylic acid | anti-ulcer drug;
fundamental metabolite;
micronutrient;
nutraceutical;
radiation protective agent |
sulfur dioxide
Sulfur Dioxide: A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant. | 2.03 | 1 | 0 | sulfur oxide | Escherichia coli metabolite;
food bleaching agent;
refrigerant |
1,10-phenanthroline
1,10-phenanthroline: RN given refers to parent cpd; inhibits Zn-dependent metalloproteinases | 2.05 | 1 | 0 | phenanthroline | EC 2.7.1.1 (hexokinase) inhibitor;
EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor |
fluorouracil
Fluorouracil: A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid.. 5-fluorouracil : A nucleobase analogue that is uracil in which the hydrogen at position 5 is replaced by fluorine. It is an antineoplastic agent which acts as an antimetabolite - following conversion to the active deoxynucleotide, it inhibits DNA synthesis (by blocking the conversion of deoxyuridylic acid to thymidylic acid by the cellular enzyme thymidylate synthetase) and so slows tumour growth. | 1.96 | 1 | 0 | nucleobase analogue;
organofluorine compound | antimetabolite;
antineoplastic agent;
environmental contaminant;
immunosuppressive agent;
radiosensitizing agent;
xenobiotic |
malathion
Malathion: A wide spectrum aliphatic organophosphate insecticide widely used for both domestic and commercial agricultural purposes.. malathion : A racemate comprising equimolar amounts of (R) and (S)-malathion. It is a broad spectrum organophosphate proinsecticide used to control a wide range of pests including Coleoptera, Diptera, fruit flies, mosquitos and spider mites.. diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate : A diester that is diethyl succinate in which position 2 is substituted by a (dimethoxyphosphorothioyl)thio group. | 3.27 | 1 | 0 | diester;
ethyl ester;
organic thiophosphate | |
methyl salicylate
methyl salicylate: used in over-the-counter liniments, ointments, lotions for relief of musculoskeletal aches and pains; has hemolytic effect on human & sheep erythrocytes; RN given refers to parent cpd; structure in Merck Index, 9th ed, #5990. methyl salicylate : A benzoate ester that is the methyl ester of salicylic acid. | 4.12 | 4 | 0 | benzoate ester;
methyl ester;
salicylates | flavouring agent;
insect attractant;
metabolite |
phorate
Phorate: A cholinesterase inhibitor that is used as an insecticide.. phosphatidylcholine O-34:2 : A glycerophosphocholine that is an alkyl,acyl-sn-glycero-3-phosphocholine in which the alkyl or acyl groups at positions 1 and 2 contain a total of 34 carbons and 2 double bonds. | 2.15 | 1 | 0 | organic thiophosphate;
organothiophosphate insecticide | acaricide;
agrochemical;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor |
o-phthalaldehyde
o-Phthalaldehyde: A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.. phthalaldehyde : A dialdehyde in which two formyl groups are attached to adjacent carbon centres on a benzene ring. | 2.15 | 1 | 0 | benzaldehydes;
dialdehyde | epitope |
2,4-thiazolidinedione
thiazolidine-2,4-dione: structure in first source. 1,3-thiazolidine-2,4-dione : A thiazolidenedione carrying oxo substituents at positions 2 and 4. | 3.31 | 1 | 0 | thiazolidenedione | |
vincristine
[no description available] | 3.31 | 1 | 0 | acetate ester;
formamides;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
tertiary alcohol;
tertiary amino compound;
vinca alkaloid | antineoplastic agent;
drug;
microtubule-destabilising agent;
plant metabolite;
tubulin modulator |
nitromethane
nitromethane: structure. nitromethane : A primary nitroalkane that is methane in which one of the hydrogens is replace by a nitro group. A polar solvent (b.p. 101 degreeC), it is an important starting material in organic synthesis. It is also used as a fuel for rockets and radio-controlled models. | 2.08 | 1 | 0 | primary nitroalkane;
volatile organic compound | EC 4.3.1.3 (histidine ammonia-lyase) inhibitor;
explosive;
NMR chemical shift reference compound;
polar aprotic solvent |
methyl acetoacetate
methyl acetoacetate: structure | 3.31 | 1 | 0 | oxo carboxylic acid | |
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. | 2.11 | 1 | 0 | pyrrole;
secondary amine | |
n,n,n',n'-tetramethylethylenediamine
N,N,N',N'-tetramethylethylenediamine: RN given refers to parent cpd; structure. N,N,N',N'-tetramethylethylenediamine : An ethylenediamine derivative in which each nitrogen carries two methyl substituents. It is widely employed both as a ligand for metal ions and as a catalyst in organic polymerisation. | 2.05 | 1 | 0 | ethylenediamine derivative | catalyst;
chelator |
ethyl acetate
ethyl acetate : The acetate ester formed between acetic acid and ethanol. | 2.03 | 1 | 0 | acetate ester;
ethyl ester;
volatile organic compound | EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor;
metabolite;
polar aprotic solvent;
Saccharomyces cerevisiae metabolite |
ethyl acetoacetate
ethyl acetoacetate: RN given refers to unlabeled parent cpd. ethyl acetoacetate : An ethyl ester resulting from the formal condensation of the carboxy group of acetoacetic acid with ethanol. | 2.47 | 2 | 0 | ethyl ester | antibacterial agent;
flavouring agent;
plant metabolite |
potassium cyanide
[no description available] | 2.15 | 1 | 0 | cyanide salt;
one-carbon compound;
potassium salt | EC 1.15.1.1 (superoxide dismutase) inhibitor;
EC 1.9.3.1 (cytochrome c oxidase) inhibitor;
neurotoxin |
cyclopentane
Cyclopentanes: A group of alicyclic hydrocarbons with the general formula R-C5H9.. cyclopentanes : Cyclopentane and its derivatives formed by substitution. | 2.03 | 1 | 0 | cycloalkane;
cyclopentanes;
volatile organic compound | non-polar solvent |
mustard gas
Mustard Gas: Severe irritant and vesicant of skin, eyes, and lungs. It may cause blindness and lethal lung edema and was formerly used as a war gas. The substance has been proposed as a cytostatic and for treatment of psoriasis. It has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP-85-002, 1985) (Merck, 11th ed).. bis(2-chloroethyl) sulfide : An ethyl sulfide that is diethyl sulfide in which a hydrogen from each of the terminal methyl groups is replaced by a chlorine. It is a powerful vesicant regulated under the Chemical Weapons Convention. | 2.48 | 2 | 0 | ethyl sulfide;
organochlorine compound | alkylating agent;
carcinogenic agent;
vesicant |
perfluorocyclopentene
perfluorocyclopentene: structure in first source | 2.03 | 1 | 0 | | |
2-chloroethyl ethyl sulfide
[no description available] | 2.48 | 2 | 0 | | |
dimethyl methylphosphonate
[no description available] | 2.06 | 1 | 0 | | |
helenalin
helenalin: toxic principle of Helenium microcephalum (smallhead sneezeweed); structure. helenalin : A sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer).. NF-kappaB inhibitor : An inhibitor of NF-kappaB (nuclear factor kappa-light-chain-enhancer of activated B cells), a protein complex involved in the transcription of DNA. | 1.96 | 1 | 0 | cyclic ketone;
gamma-lactone;
organic heterotricyclic compound;
secondary alcohol;
sesquiterpene lactone | anti-inflammatory agent;
antineoplastic agent;
metabolite;
plant metabolite |
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. | 7.46 | 2 | 0 | elemental manganese;
manganese group element atom | Escherichia coli metabolite;
micronutrient |
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. | 2.05 | 1 | 0 | titanium group element atom | |
titanium tetrachloride
titanium tetrachloride: RN given refers to TiCl4 | 2.05 | 1 | 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. | 2.03 | 1 | 0 | benzenes;
phenyl acetates | |
diethyl succinate
diethyl succinate: carboxylesterase substrate | 1.96 | 1 | 0 | fatty acid ester | |
1,4-dioxane
1,4-dioxane: dehydrating agent; polar solvent miscible both with water & most organic solvents. dioxane : Any member of the class of dioxanes that is a cyclohexane in which two carbon atoms are replaced by oxygen atoms.. 1,4-dioxane : A dioxane with oxygen atoms at positions 1 and 4. | 2.06 | 1 | 0 | dioxane;
volatile organic compound | carcinogenic agent;
metabolite;
NMR chemical shift reference compound;
non-polar solvent |
acarbose
[no description available] | 3.31 | 1 | 0 | tetrasaccharide derivative | EC 3.2.1.1 (alpha-amylase) inhibitor;
EC 3.2.1.20 (alpha-glucosidase) inhibitor;
geroprotector;
hypoglycemic agent |
adenosine
quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | 2.06 | 1 | 0 | adenosines;
purines D-ribonucleoside | analgesic;
anti-arrhythmia drug;
fundamental metabolite;
human metabolite;
vasodilator agent |
chlorin
chlorin: RN given refers to parent cpd; structure. chlorin : A tetrapyrrole fundamental parent that is obtained by formal hydrogenation across the 2,3-double bond of porphyrin. | 2.11 | 1 | 0 | | |
1,7-phenanthroline
[no description available] | 2.05 | 1 | 0 | phenanthroline | |
triazoles
Triazoles: Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3.. triazoles : An azole in which the five-membered heterocyclic aromatic skeleton contains three N atoms and two C atoms. | 2.03 | 1 | 0 | 1,2,3-triazole | |
triphenylmethylphosphonium
triphenylmethylphosphonium: RN given refers to parent cpd | 2.03 | 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. | 2.08 | 1 | 0 | cobalt group element atom;
metal allergen | micronutrient |
monochlorobimane
monochlorobimane: marker for glutathione | 2.15 | 1 | 0 | organochlorine compound;
pyrazolopyrazole | fluorochrome |
fullerene c60
Fullerenes: A polyhedral CARBON structure composed of around 60-80 carbon atoms in pentagon and hexagon configuration. They are named after Buckminster Fuller because of structural resemblance to geodesic domes. Fullerenes can be made in high temperature such as arc discharge in an inert atmosphere.. fullerene : A compound composed solely of an even number of carbon atoms, which form a cage-like fused-ring polycyclic system with twelve five-membered rings and the rest six-membered rings. The term has been broadened to include any closed cage structure consisting entirely of three-coordinate carbon atoms. | 2.47 | 2 | 0 | fullerene | geroprotector |
organophosphonates
hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.46 | 2 | 0 | divalent inorganic anion;
phosphite ion | |
11alpha,13-dihydrohelenalin
[no description available] | 1.96 | 1 | 0 | sesquiterpene lactone | |
thiourea
Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur. | 7.54 | 2 | 0 | one-carbon compound;
thioureas;
ureas | antioxidant;
chromophore |
trisindoline
trisindoline: an antibiotic indole trimer, produced by Vibrio separated from the marine sponge Hyrtios altum; structure given in first source | 3.31 | 1 | 0 | | |
beta-nitrostyrene
beta-nitrostyrene: RN given refers to cpd without isomeric designation | 2.21 | 1 | 0 | | |
corrole
corrole: structure in first source. corrole : A tetrapyrrole fundamental parent that is the octadehydro drivative of corrin. | 2.11 | 1 | 0 | | |
mannich bases
Mannich Bases: Ketonic amines prepared from the condensation of a ketone with formaldehyde and ammonia or a primary or secondary amine. A Mannich base can act as the equivalent of an alpha,beta unsaturated ketone in synthesis or can be reduced to form physiologically active amino alcohols. | 2.08 | 1 | 0 | | |
salicylates
Salicylates: The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis.. hydroxybenzoate : Any benzoate derivative carrying a single carboxylate group and at least one hydroxy substituent.. salicylates : Any salt or ester arising from reaction of the carboxy group of salicylic acid, or any ester resulting from the condensation of the phenolic hydroxy group of salicylic acid with an organic acid.. salicylate : A monohydroxybenzoate that is the conjugate base of salicylic acid. | 4.12 | 4 | 0 | monohydroxybenzoate | plant metabolite |