| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
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. | 1.97 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
acetaldehyde
Acetaldehyde: A colorless, flammable liquid used in the manufacture of acetic acid, perfumes, and flavors. It is also an intermediate in the metabolism of alcohol. It has a general narcotic action and also causes irritation of mucous membranes. Large doses may cause death from respiratory paralysis.. acetaldehyde : The aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke.. aldehyde : A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group.. acetyl group : A group, formally derived from acetic acid by dehydroxylation, which is fundamental to the biochemistry of all forms of life. When bound to coenzyme A, it is central to the metabolism of carbohydrates and fats. | 2.25 | 1 | 0 | aldehyde | carcinogenic agent;
EC 3.5.1.4 (amidase) inhibitor;
electron acceptor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
mutagen;
oxidising agent;
Saccharomyces cerevisiae metabolite;
teratogenic agent |
acetamide
acetimidic acid : A carboximidic acid that is acetic acid in which the carbonyl oxygen is replaced by an imino group. | 2.01 | 1 | 0 | acetamides;
carboximidic acid;
monocarboxylic acid amide;
N-acylammonia | |
acetoin
[no description available] | 3.68 | 2 | 0 | methyl ketone;
secondary alpha-hydroxy ketone | metabolite |
acetone
methyl ketone : A ketone of formula RC(=O)CH3 (R =/= H). | 7.73 | 3 | 0 | ketone body;
methyl ketone;
propanones;
volatile organic compound | EC 3.5.1.4 (amidase) inhibitor;
human metabolite;
polar aprotic solvent |
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 3.75 | 10 | 0 | azane;
gas molecular entity;
mononuclear parent hydride | EC 3.5.1.4 (amidase) inhibitor;
metabolite;
mouse metabolite;
neurotoxin;
NMR chemical shift reference compound;
nucleophilic reagent;
refrigerant |
benzaldehyde
[no description available] | 2.13 | 1 | 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 |
benzene
[no description available] | 2.65 | 3 | 0 | aromatic annulene;
benzenes;
volatile organic compound | carcinogenic agent;
environmental contaminant;
non-polar solvent |
bromide
Bromides: Salts of hydrobromic acid, HBr, with the bromine atom in the 1- oxidation state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) | 2.1 | 1 | 0 | halide anion;
monoatomic bromine | |
2,3-butylene glycol
2,3-butylene glycol: RN given refers to cpd without isomeric designation. butane-2,3-diol : A butanediol in which hydroxylation is at C-2 and C-3. | 3.27 | 1 | 0 | butanediol;
glycol;
secondary alcohol | |
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. | 7.06 | 1 | 0 | fatty acid 4:0;
straight-chain saturated fatty acid | human urinary metabolite;
Mycoplasma genitalium metabolite |
carbamates
[no description available] | 2.31 | 1 | 0 | amino-acid anion | |
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). | 7.92 | 4 | 0 | alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound | bacterial metabolite;
fossil fuel;
greenhouse gas |
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). | 2.41 | 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 |
octane
Octanes: Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.. octane : A straight chain alkane composed of 8 carbon atoms. | 2.05 | 1 | 0 | alkane | xenobiotic |
octanoic acid
octanoic acid: RN given refers to parent cpd; structure in Merck Index, 9th ed, #1764. octanoic acid : A straight-chain saturated fatty acid that is heptane in which one of the hydrogens of a terminal methyl group has been replaced by a carboxy group. Octanoic acid is also known as caprylic acid. | 3.22 | 6 | 0 | medium-chain fatty acid;
straight-chain saturated fatty acid | antibacterial agent;
Escherichia coli metabolite;
human metabolite |
hydrogen sulfide
Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed). hydrogen sulfide : A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen.. thiol : An organosulfur compound in which a thiol group, -SH, is attached to a carbon atom of any aliphatic or aromatic moiety. | 5.44 | 23 | 0 | gas molecular entity;
hydracid;
mononuclear parent hydride;
sulfur hydride | Escherichia coli metabolite;
genotoxin;
metabolite;
signalling molecule;
toxin;
vasodilator agent |
guaiacol
Guaiacol: An agent thought to have disinfectant properties and used as an expectorant. (From Martindale, The Extra Pharmacopoeia, 30th ed, p747). methylcatechol : Any member of the class of catechols carrying one or more methyl substituents.. guaiacol : A monomethoxybenzene that consists of phenol with a methoxy substituent at the ortho position. | 2.11 | 1 | 0 | guaiacols | disinfectant;
EC 1.1.1.25 (shikimate dehydrogenase) inhibitor;
expectorant;
plant metabolite |
cytosine
[no description available] | 1.97 | 1 | 0 | aminopyrimidine;
pyrimidine nucleobase;
pyrimidone | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
lactic acid
Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. | 7.44 | 2 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite;
Daphnia magna metabolite |
dimethyl sulfoxide
Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.. dimethyl sulfoxide : A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents. | 2.13 | 1 | 0 | sulfoxide;
volatile organic compound | alkylating agent;
antidote;
Escherichia coli metabolite;
geroprotector;
MRI contrast agent;
non-narcotic analgesic;
polar aprotic solvent;
radical scavenger |
hydrogen cyanide
Hydrogen Cyanide: Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials.. hydrogen cyanide : A one-carbon compound consisting of a methine group triple bonded to a nitrogen atom | 2.02 | 1 | 0 | hydracid;
one-carbon compound | Escherichia coli metabolite;
human metabolite;
poison |
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. | 2.46 | 2 | 0 | elemental hydrogen;
elemental molecule;
gas molecular entity | antioxidant;
electron donor;
food packaging gas;
fuel;
human metabolite |
indole
[no description available] | 1.97 | 1 | 0 | indole;
polycyclic heteroarene | Escherichia coli metabolite |
thioctic acid
Thioctic Acid: An octanoic acid bridged with two sulfurs so that it is sometimes also called a pentanoic acid in some naming schemes. It is biosynthesized by cleavage of LINOLEIC ACID and is a coenzyme of oxoglutarate dehydrogenase (KETOGLUTARATE DEHYDROGENASE COMPLEX). It is used in DIETARY SUPPLEMENTS. | 1.96 | 1 | 0 | dithiolanes;
heterocyclic fatty acid;
thia fatty acid | fundamental metabolite;
geroprotector |
racemethionine
Racemethionine: A preparation of METHIONINE that includes a mixture of D-methionine and L-methionine isomers. | 2.6 | 1 | 0 | alpha-amino acid;
amino acid zwitterion;
sulfur-containing amino acid | algal metabolite;
Daphnia magna metabolite;
Escherichia coli metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
methylmercaptan
methylmercaptan: intermediate in the manufacturing of jet fuels, pesticides, fungicides, plastics, synthesis of methionine; odor may cause nausea; narcotic in high concentrations; depresses urea biosynthesis; RN given refers to parent cpd; structure | 5.88 | 37 | 0 | alkanethiol | human metabolite;
Saccharomyces cerevisiae metabolite |
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. | 1.99 | 1 | 0 | metal allergen;
nickel group element atom | epitope;
micronutrient |
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 3.49 | 2 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
nitric acid
Nitric Acid: Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed). nitric acid : A nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. | 2.08 | 1 | 0 | nitrogen oxoacid | protic solvent;
reagent |
nitrous oxide
Nitrous Oxide: Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.. dinitrogen oxide : A nitrogen oxide consisting of linear unsymmetrical molecules with formula N2O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its solubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream. | 2.15 | 1 | 0 | gas molecular entity;
nitrogen oxide | analgesic;
bacterial metabolite;
food packaging gas;
food propellant;
general anaesthetic;
greenhouse gas;
inhalation anaesthetic;
NMDA receptor antagonist;
raising agent;
refrigerant;
vasodilator agent |
oxalic acid
Oxalic Acid: A strong dicarboxylic acid occurring in many plants and vegetables. It is produced in the body by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine. It is used as an analytical reagent and general reducing agent.. oxalic acid : An alpha,omega-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. | 3.06 | 1 | 0 | alpha,omega-dicarboxylic acid | algal metabolite;
human metabolite;
plant metabolite |
phenol
[no description available] | 1.96 | 1 | 0 | phenols | antiseptic drug;
disinfectant;
human xenobiotic metabolite;
mouse metabolite |
1-propanol
1-Propanol: A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.. propan-1-ol : The parent member of the class of propan-1-ols that is propane in which a hydrogen of one of the methyl groups is replaced by a hydroxy group. | 2.11 | 1 | 0 | propan-1-ols;
short-chain primary fatty alcohol | metabolite;
protic solvent |
propionic acid
propionic acid : A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | 7.31 | 1 | 0 | saturated fatty acid;
short-chain fatty acid | antifungal drug |
putrescine
[no description available] | 3.65 | 3 | 0 | alkane-alpha,omega-diamine | antioxidant;
fundamental metabolite |
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. | 2.03 | 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 |
dimethyl sulfide
dimethyl sulfide: structure. dimethyl sulfide : A methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae.. methyl sulfide : Any aliphatic sulfide in which at least one of the organyl groups attached to the sulfur is a methyl group. | 4.94 | 36 | 0 | aliphatic sulfide | algal metabolite;
bacterial xenobiotic metabolite;
EC 3.5.1.4 (amidase) inhibitor;
Escherichia coli metabolite;
marine metabolite |
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. | 2.98 | 4 | 0 | sulfur oxide | Escherichia coli metabolite;
food bleaching agent;
refrigerant |
trimethylamine
[no description available] | 2.93 | 1 | 0 | methylamines;
tertiary amine | Escherichia coli metabolite;
human xenobiotic metabolite |
uric acid
Uric Acid: An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.. uric acid : An oxopurine that is the final oxidation product of purine metabolism.. 6-hydroxy-1H-purine-2,8(7H,9H)-dione : A tautomer of uric acid having oxo groups at C-2 and C-8 and a hydroxy group at C-6.. 7,9-dihydro-1H-purine-2,6,8(3H)-trione : An oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8. | 2.13 | 1 | 0 | uric acid | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
acetaminophen
Acetaminophen: Analgesic antipyretic derivative of acetanilide. It has weak anti-inflammatory properties and is used as a common analgesic, but may cause liver, blood cell, and kidney damage.. paracetamol : A member of the class of phenols that is 4-aminophenol in which one of the hydrogens attached to the amino group has been replaced by an acetyl group. | 2.37 | 2 | 0 | acetamides;
phenols | antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
cyclooxygenase 3 inhibitor;
environmental contaminant;
ferroptosis inducer;
geroprotector;
hepatotoxic agent;
human blood serum metabolite;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic |
benzo(a)pyrene
Benzo(a)pyrene: A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke.. benzo[a]pyrene : An ortho- and peri-fused polycyclic arene consisting of five fused benzene rings. | 2.13 | 1 | 0 | ortho- and peri-fused polycyclic arene | carcinogenic agent;
mouse metabolite |
cystamine
[no description available] | 1.96 | 1 | 0 | organic disulfide;
primary amino compound | EC 2.3.2.13 (protein-glutamine gamma-glutamyltransferase) inhibitor |
glyburide
Glyburide: An antidiabetic sulfonylurea derivative with actions like those of chlorpropamide. glyburide : An N-sulfonylurea that is acetohexamide in which the acetyl group is replaced by a 2-(5-chloro-2-methoxybenzamido)ethyl group. | 2.01 | 1 | 0 | monochlorobenzenes;
N-sulfonylurea | anti-arrhythmia drug;
EC 2.7.1.33 (pantothenate kinase) inhibitor;
EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor;
hypoglycemic agent |
methenamine
Methenamine: An anti-infective agent most commonly used in the treatment of urinary tract infections. Its anti-infective action derives from the slow release of formaldehyde by hydrolysis at acidic pH. (From Martindale, The Extra Pharmacopoeia, 30th ed, p173). hexamethylenetetramine : A polycyclic cage that is adamantane in which the carbon atoms at positions 1, 3, 5 and 7 are replaced by nitrogen atoms. | 2.05 | 1 | 0 | polyazaalkane;
polycyclic cage;
tetramine | antibacterial drug |
methyl methanesulfonate
[no description available] | 2.31 | 1 | 0 | methanesulfonate ester | alkylating agent;
apoptosis inducer;
carcinogenic agent;
genotoxin;
mutagen |
phenobarbital
Phenobarbital: A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.. phenobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and phenyl groups. | 1.99 | 1 | 0 | barbiturates | anticonvulsant;
drug allergen;
excitatory amino acid antagonist;
sedative |
resorcinol
resorcinol: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7951. resorcinol : A benzenediol that is benzene dihydroxylated at positions 1 and 3. | 2.06 | 1 | 0 | benzenediol;
phenolic donor;
resorcinols | erythropoietin inhibitor;
sensitiser |
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. | 2.01 | 1 | 0 | N-sulfonylurea | human metabolite;
hypoglycemic agent;
insulin secretagogue;
potassium channel blocker |
corticosterone
[no description available] | 1.97 | 1 | 0 | 11beta-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone | human metabolite;
mouse metabolite |
penicillamine
Penicillamine: 3-Mercapto-D-valine. The most characteristic degradation product of the penicillin antibiotics. It is used as an antirheumatic and as a chelating agent in Wilson's disease.. penicillamine : An alpha-amino acid having the structure of valine substituted at the beta position with a sulfanyl group. | 1.96 | 1 | 0 | non-proteinogenic alpha-amino acid;
penicillamine | antirheumatic drug;
chelator;
copper chelator;
drug allergen |
carbon tetrachloride
Carbon Tetrachloride: A solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed). tetrachloromethane : A chlorocarbon that is methane in which all the hydrogens have been replaced by chloro groups. | 2.71 | 3 | 0 | chlorocarbon;
chloromethanes | hepatotoxic agent;
refrigerant |
allyl isothiocyanate
allyl isothiocyanate: used in the manufacture of flavors, war gases; medical use as a counterirritant; structure. allyl isothiocyanate : An isothiocyanate with the formula CH2=CHCH2N=C=S. A colorless oil with boiling point 152degreeC, it is responsible for the pungent taste of mustard, horseradish, and wasabi. | 1.98 | 1 | 0 | alkenyl isothiocyanate;
isothiocyanate | antimicrobial agent;
antineoplastic agent;
apoptosis inducer;
lachrymator;
metabolite |
2,3,4,6-tetrachlorophenol
2,3,4,6-tetrachlorophenol: RN given refers to parent cpd; see also record for tetrachlorophenol with locants for chloro groups not specified. 2,3,4,6-tetrachlorophenol : A tetrachlorophenol in which the chlorines are located at positions 2, 3, 4, and 6. | 2 | 1 | 0 | tetrachlorophenol | xenobiotic metabolite |
phenylethyl alcohol
Phenylethyl Alcohol: An antimicrobial, antiseptic, and disinfectant that is used also as an aromatic essence and preservative in pharmaceutics and perfumery.. 2-phenylethanol : A primary alcohol that is ethanol substituted by a phenyl group at position 2. | 2.05 | 1 | 0 | benzenes;
primary alcohol | Aspergillus metabolite;
fragrance;
plant growth retardant;
plant metabolite;
Saccharomyces cerevisiae metabolite |
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. | 2.41 | 1 | 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 |
cysteamine
Cysteamine: A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.. cysteamine : An amine that consists of an ethane skeleton substituted with a thiol group at C-1 and an amino group at C-2. | 1.96 | 1 | 0 | amine;
thiol | geroprotector;
human metabolite;
mouse metabolite;
radiation protective agent |
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. | 3.65 | 9 | 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. | 2.41 | 1 | 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 |
n-hexanal
[no description available] | 2.76 | 3 | 0 | medium-chain fatty aldehyde;
n-alkanal;
saturated fatty aldehyde | human urinary metabolite |
chloroform
Chloroform: A commonly used laboratory solvent. It was previously used as an anesthetic, but was banned from use in the U.S. due to its suspected carcinogenicity.. chloroform : A one-carbon compound that is methane in which three of the hydrogens are replaced by chlorines. | 2.21 | 1 | 0 | chloromethanes;
one-carbon compound | carcinogenic agent;
central nervous system drug;
inhalation anaesthetic;
non-polar solvent;
refrigerant |
n-pentanol
n-pentanol: RN given refers to parent cpd. pentan-1-ol : A short-chain primary fatty alcohol that is pentane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. It has been isolated from Melicope ptelefolia. | 3.71 | 2 | 0 | pentanol;
short-chain primary fatty alcohol | human metabolite;
plant metabolite |
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. | 3.52 | 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 |
4-chlorobenzoic acid
4-chlorobenzoic acid: RN given refers to parent cpd. 4-chlorobenzoic acid : A monochlorobenzoic acid carrying a chloro substituent at position 4. | 2.06 | 1 | 0 | monochlorobenzoic acid | bacterial xenobiotic metabolite |
methyl bromide
methyl bromide: used in ionization chambers, degreasing wool, extracting oils; insect fumigant; high concentrations can produce pulmonary edema,narcosis; chronic exposure can cause CNS depression,kidney injury; RN given refers to parent cpd; structure. bromomethane : A one-carbon compound in which the carbon is attached by single bonds to three hydrogen atoms and one bromine atom. It is produced naturally by marine algae. | 7.54 | 2 | 0 | bromohydrocarbon;
bromomethanes;
methyl halides | algal metabolite;
fumigant insecticide;
marine metabolite |
propane
Propane: A three carbon alkane with the formula H3CCH2CH3. | 1.99 | 1 | 0 | alkane;
gas molecular entity | food propellant |
acetonitrile
acetonitrile: RN given refers to unlabeled cpd. acetonitrile : A nitrile that is hydrogen cyanide in which the hydrogen has been replaced by a methyl group. | 2.02 | 1 | 0 | aliphatic nitrile;
volatile organic compound | EC 3.5.1.4 (amidase) inhibitor;
NMR chemical shift reference compound;
polar aprotic solvent |
ethanethiol
ethanethiol: RN given refers to parent cpd; structure. ethanethiol : An alkanethiol that is ethane substituted by a thiol group at position 1. It is added to odorless gaseous products such as liquefied petroleum gas (LPG) to provide a garlic scent which helps warn of gas leaks. | 8.16 | 5 | 0 | alkanethiol | rodenticide |
methylene chloride
Methylene Chloride: A chlorinated hydrocarbon that has been used as an inhalation anesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology.. dichloromethane : A member of the class of chloromethanes that is methane in which two of the hydrogens have been replaced by chlorine. A dense, non-flammible colourless liquid at room temperature (b.p. 40degreeC, d = 1.33) which is immiscible with water, it is widely used as a solvent, a paint stripper, and for the removal of caffeine from coffee and tea. | 2.01 | 1 | 0 | chloromethanes;
volatile organic compound | carcinogenic agent;
polar aprotic solvent;
refrigerant |
carbon disulfide
Carbon Disulfide: A colorless, flammable, poisonous liquid, CS2. It is used as a solvent, and is a counterirritant and has local anesthetic properties but is not used as such. It is highly toxic with pronounced CNS, hematologic, and dermatologic effects. | 3.32 | 6 | 0 | one-carbon compound;
organosulfur compound | |
cyclopropane
cyclopropane : A cycloalkane composed of three carbon atoms to form a ring. | 2.06 | 1 | 0 | cycloalkane;
cyclopropanes | inhalation anaesthetic |
methyl sulfate
methyl sulfate: RN given refers to parent cpd. methyl sulfate : An alkyl sulfate that is the monomethyl ester of sulfuric acid. | 1.99 | 1 | 0 | alkyl sulfate;
one-carbon compound | |
chloropicrin
chloropicrin: major descriptor (66-85); on-line search HYDROCARBONS, CHLORINATED (66-85); Index Medicus search CHLOROPICRIN (66-85). chloropicrin : A C-nitro compound that is nitromethane in which all three hydrogens are replaced by chlorines. It is a severe irritant, and can cause immediate, severe inflammation of the eyes, nose and throat, and significant injuries to the upper and lower respiratory tract. Formerly stockpiled as a chemical warfare agent, it has been widely used in the US as a soil fumigant, particularly for strawberry crops. It is not approved for use within the European Union. | 2.86 | 3 | 0 | C-nitro compound;
one-carbon compound;
organochlorine compound | antifungal agrochemical;
fumigant insecticide;
nematicide |
dimethyl sulfate
dimethyl sulfate: RN given refers to unlabeled cpd; structure. dimethyl sulfate : The dimethyl ester of sulfuric acid. | 2.06 | 1 | 0 | alkyl sulfate | alkylating agent;
immunosuppressive agent |
tromethamine
Tromethamine: An organic amine proton acceptor. It is used in the synthesis of surface-active agents and pharmaceuticals; as an emulsifying agent for cosmetic creams and lotions, mineral oil and paraffin wax emulsions, as a biological buffer, and used as an alkalizer. (From Merck, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p1424) | 1.96 | 1 | 0 | primary amino compound;
triol | buffer |
isoprene
isoprene: used in manufacture of ''synthetic'' rubber, butyl rubber; copolymer in production of elastomers; structure. isoprene : A hemiterpene with the formula CH2=C(CH3)CH=CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurring compounds. | 2.43 | 2 | 0 | alkadiene;
hemiterpene;
volatile organic compound | plant metabolite |
isobutyraldehyde
isobutyraldehyde : A member of the class of propanals that is propanal substituted by a methyl group at position 2. | 2 | 1 | 0 | 2-methyl-branched fatty aldehyde;
propanals | Saccharomyces cerevisiae metabolite |
methylethyl ketone
methylethyl ketone: solvent; colorless synthetic resins, smokeless powders; may be irritating to eyes, mucous membranes; may be toxic in high concentrations; structure. butanone : Any ketone that is butane substituted by an oxo group at unspecified position.. butan-2-one : A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2. | 2.25 | 1 | 0 | butanone;
dialkyl ketone;
methyl ketone;
volatile organic compound | bacterial metabolite;
polar aprotic solvent |
camphene
camphene : A monoterpene with a bicyclic skeleton that is bicyclo[2.2.1]heptane substituted by geminal methyl groups at position 2 and a methylidene group at position 3. It is a widespread natural product found in many essential oils. | 2.11 | 1 | 0 | carbobicyclic compound;
monoterpene | fragrance;
plant metabolite |
skatole
[no description available] | 5.3 | 6 | 0 | methylindole | human metabolite;
mammalian metabolite |
2-methylbutanal
2-methylbutanal: structure in first source. 2-methylbutanal : A methylbutanal in which the methyl substituent is at position 2. | 2.21 | 1 | 0 | 2-methyl-branched fatty aldehyde;
methylbutanal | plant metabolite;
Saccharomyces cerevisiae metabolite;
volatile oil component |
4-butyrolactone
4-Butyrolactone: One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.. tetrahydrofuranone : Any oxolane having an oxo- substituent at any position on the tetrahydrofuran ring.. gamma-butyrolactone : A butan-4-olide that is tetrahydrofuran substituted by an oxo group at position 2. | 2.11 | 1 | 0 | butan-4-olide | metabolite;
neurotoxin |
acetophenone
acetophenone : A methyl ketone that is acetone in which one of the methyl groups has been replaced by a phenyl group. | 2.13 | 1 | 0 | acetophenones | animal metabolite;
photosensitizing agent;
xenobiotic |
ethylbenzene
[no description available] | 2.25 | 1 | 0 | alkylbenzene | |
methylphenylsulfide
thioanisole : An aryl sulfide that is thiophenol in which the hydrogen of the thiol group has been replaced by a methyl group. | 2.06 | 1 | 0 | aryl sulfide;
benzenes | |
allyl bromide
[no description available] | 2.06 | 1 | 0 | | |
allyl alcohol
allyl alcohol: structure. allylic alcohol : An alcohol where the hydroxy group is attached to a saturated carbon atom adjacent to a double bond (R groups may be H, organyl, etc.).. allyl alcohol : A propenol in which the C=C bond connects C-2 and C-3. It is has been found in garlic (Allium sativum). Formerly used as a herbicide for the control of various grass and weed seeds. | 2.08 | 1 | 0 | primary allylic alcohol;
propenol | antibacterial agent;
fungicide;
herbicide;
insecticide;
plant metabolite |
mesitylene
mesitylene: structure. 1,3,5-trimethylbenzene : A trimethylbenzene carrying methyl substituents at positions 1, 3 and 5. | 2.11 | 1 | 0 | trimethylbenzene | |
pentane
Pentanes: Five-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.. pentane : A straight chain alkane consisting of 5 carbon atoms. | 2.43 | 2 | 0 | alkane;
volatile organic compound | non-polar solvent;
refrigerant |
allyl cyanide
TL 350: structure given in first source. allyl cyanide : An aliphatic nitrile that is hydrogen cyanide in which the hydrogen has been replaced by an allyl group. | 1.98 | 1 | 0 | aliphatic nitrile;
olefinic compound | antifeedant;
neurotoxin;
plant metabolite |
n-butyl mercaptan
n-butyl mercaptan: hydrolytic product of merphos; RN given refers to parent cpd | 2.08 | 1 | 0 | alkanethiol | |
furan
furan : A monocyclic heteroarene with a structure consisting of a 5-membered ring containing four carbons and one oxygen, with formula C4H4O. It is a toxic, flammable, low-boiling (31degreeC) colourless liquid. | 2.52 | 2 | 0 | furans;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | carcinogenic agent;
hepatotoxic agent;
Maillard reaction product |
2-heptanone
heptan-2-one : A dialkyl ketone with methyl and pentyl as the alkyl groups. | 2.04 | 1 | 0 | dialkyl ketone;
methyl ketone | mouse metabolite;
pheromone |
1-hexanol
1-hexanol: RN given refers to parent cpd. hexanol : A fatty alcohol consisting of a hydroxy function at any position of an unbranched saturated chain of six carbon atoms.. hexan-1-ol : A primary alcohol that is hexane substituted by a hydroxy group at position 1. | 2.04 | 1 | 0 | hexanol;
primary alcohol | alarm pheromone;
antibacterial agent;
fragrance;
plant metabolite |
dipropyl sulfide
[no description available] | 1.99 | 1 | 0 | aliphatic sulfide | |
n-butoxyethanol
n-butoxyethanol: RN given refers to parent cpd; structure. 2-butoxyethanol : A primary alcohol that is ethanol in which one of the methyl hydrogens is replaced by a butoxy group. A high-boiling (171degreeC) colourless liquid, it is used as a solvent for paints and inks, as well as in some dry cleaning solutions. | 2.11 | 1 | 0 | glycol ether;
primary alcohol | protic solvent |
isobutylene
2-methylprop-1-ene : An alkene that is prop-1-ene substituted by a methyl group at position 2. | 2.05 | 1 | 0 | alkene;
gas molecular entity | |
ethyl acetate
ethyl acetate : The acetate ester formed between acetic acid and ethanol. | 1.99 | 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 |
quinazolines
Quinazolines: A group of aromatic heterocyclic compounds that contain a bicyclic structure with two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring.. quinazoline : A mancude organic heterobicyclic parent that is naphthalene in which the carbon atoms at positions 1 and 3 have been replaced by nitrogen atoms.. quinazolines : Any organic heterobicyclic compound based on a quinazoline skeleton and its substituted derivatives. | 2.13 | 1 | 0 | azaarene;
mancude organic heterobicyclic parent;
ortho-fused heteroarene;
quinazolines | |
oxazoles
Oxazoles: Five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position, in distinction from ISOXAZOLES where they are at the 1,2 positions.. 1,3-oxazole : A five-membered monocyclic heteroarene that is an analogue of cyclopentadiene with O in place of CH2 at position 1 and N in place of CH at position 3.. oxazole : An azole based on a five-membered heterocyclic aromatic skeleton containing one N and one O atom. | 2.01 | 1 | 0 | 1,3-oxazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
thiazoles
[no description available] | 2 | 1 | 0 | 1,3-thiazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
pyrimidine
pyrimidine : The parent compound of the pyrimidines; a diazine having the two nitrogens at the 1- and 3-positions. | 2.05 | 1 | 0 | diazine;
pyrimidines | Daphnia magna metabolite |
cyanamide
Cyanamide: A cyanide compound which has been used as a fertilizer, defoliant and in many manufacturing processes. It often occurs as the calcium salt, sometimes also referred to as cyanamide. The citrated calcium salt is used in the treatment of alcoholism.. cyanamide : A nitrile that is hydrogen cyanide in which the hydrogen has been replaced by an amino group. | 2.31 | 1 | 0 | nitrile;
one-carbon compound | EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor |
carbonyl sulfide
carbonyl sulfide: structure. carbonyl sulfide : A one-carbon compound in which the carbon atom is attached to an oxygen and a sulfur atom via double bonds. | 2.44 | 2 | 0 | one-carbon compound;
organosulfur compound | |
isovaleric acid
isovaleric acid: structure. isovaleric acid : A C5, branched-chain saturated fatty acid. | 3.65 | 3 | 0 | branched-chain saturated fatty acid;
methylbutyric acid;
short-chain fatty acid | mammalian metabolite;
plant metabolite |
methionol
methionol: a aroma-active compound. 3-methylthiopropanol : An alkyl sulfide that is propan-1-ol substituted by a methylsulfanyl group at position 3. It is a volatile compound found in wines and produced during fermentation. | 2.02 | 1 | 0 | aliphatic sulfide;
methyl sulfide | Saccharomyces cerevisiae metabolite |
dazomet
dazomet: fumigant for poultry litter & eggs to control salmonella; structure. dazomet : A dithiocarbamic ester that is 1,3,5-thiadiazinane with a thione moiety at position 2 and in which the hydrogens attached to the nitrogens are replaced by methyl groups. A fungicide, herbicide and nematicide, it is used prior to sowing or planting for the control of soil fungi, nematodes, bacteria and germinating weeds, and as fumigant for poultry litter and eggs to control Salmonella. It is a non-ozone-depleting alternative to methyl bromide. | 7.57 | 2 | 0 | dithiocarbamic ester;
thiadiazinane | antibacterial agent;
antifungal agrochemical;
herbicide;
nematicide |
n-hexadecane
n-hexadecane: structure. hexadecane : A straight-chain alkane with 16 carbon atoms. It is a component of essential oil isolated from long pepper. | 2.06 | 1 | 0 | long-chain alkane | non-polar solvent;
plant metabolite;
volatile oil component |
prenol
[no description available] | 2.25 | 1 | 0 | alkenyl alcohol;
prenols | |
isovalerylaldehyde
isovalerylaldehyde: structure in Merck Index, 9th ed, #5093. 3-methylbutanal : A methylbutanal that is butanal substituted by a methyl group at position 3. It occurs as a volatile constituent in olives. | 2.77 | 3 | 0 | methylbutanal | flavouring agent;
plant metabolite;
Saccharomyces cerevisiae metabolite;
volatile oil component |
acetylcysteine
N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. | 2.06 | 1 | 0 | acetylcysteine;
L-cysteine derivative;
N-acetyl-L-amino acid | antidote to paracetamol poisoning;
antiinfective agent;
antioxidant;
antiviral drug;
ferroptosis inhibitor;
geroprotector;
human metabolite;
mucolytic;
radical scavenger;
vulnerary |
n-propyl disulfide
n-propyl disulfide: major flavor component of onions; non-nitrogenous, pungent volatile oil. dipropyl disulfide : An organic disulfide where the alkyl groups specified are propyl. It is a component of the essential oils obtained from Allium. | 1.99 | 1 | 0 | organic disulfide | plant metabolite |
n-tetradecane
tetradecane : A straight chain alkane consisting of 14 carbon atoms. | 2.11 | 1 | 0 | long-chain alkane | plant metabolite;
volatile oil component |
pentadecane
pentadecane : A straight-chain alkane with 15 carbon atoms. It is a component of volatile oils isolated from plants species like Scandix balansae. | 2.06 | 1 | 0 | long-chain alkane | animal metabolite;
plant metabolite;
volatile oil component |
levonorgestrel
Levonorgestrel: A synthetic progestational hormone with actions similar to those of PROGESTERONE and about twice as potent as its racemic or (+-)-isomer (NORGESTREL). It is used for contraception, control of menstrual disorders, and treatment of endometriosis. | 2.6 | 1 | 0 | 17beta-hydroxy steroid;
3-oxo-Delta(4) steroid;
terminal acetylenic compound | contraceptive drug;
female contraceptive drug;
progestin;
synthetic oral contraceptive |
molybdenum trioxide
[no description available] | 2.41 | 2 | 0 | molybdenum oxide | |
hexadecyldimethylamine
hexadecyldimethylamine: has antifungal activity; isolated from Arthrobacter agilis; structure in first source | 3.27 | 1 | 0 | | |
diallyl trisulfide
[no description available] | 2.05 | 1 | 0 | organic trisulfide | anti-inflammatory agent;
antilipemic drug;
antineoplastic agent;
antioxidant;
antiprotozoal drug;
apoptosis inducer;
estrogen receptor antagonist;
insecticide;
platelet aggregation inhibitor;
vasodilator agent |
diallyl disulfide
diallyl disulfide: major constituent of garlic oil. diallyl disulfide : An organic disulfide where the organic group specified is allyl. It has been isolated from garlic and other species of the genus Allium. | 3.34 | 6 | 0 | organic disulfide | antifungal agent;
antineoplastic agent;
plant metabolite |
alpha-terpineol
terpineol : A family of monoterpenols that have a p-menthane skeleton containing one double bond and bearing a single hydroxy substituent. | 2.05 | 1 | 0 | terpineol | plant metabolite |
methyl methanethiosulfonate
S-methyl methanethiosulfonate : A sulfonic acid derivative obtained by condensaton of methanesulfonic acid with methanethiol. | 2.31 | 1 | 0 | sulfonic acid derivative;
thiosulfonate ester | metabolite |
1-octen-3-ol
1-octen-3-ol: main flavor component of mushrooms; RN given refers to cpd without isomeric designation; bait for insect vectors (tsetse, sandflies, mosquitoes). oct-1-en-3-ol : An alkenyl alcohol with a structure based on a C8 unbranched chain with the hydroxy group at C-2 and unsaturation at C-1-C-2. It is a major volatile compound present in many mushrooms and fungi. | 2.13 | 1 | 0 | alkenyl alcohol;
medium-chain fatty alcohol | antimicrobial agent;
fungal metabolite;
insect attractant;
volatile oil component |
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. | 1.96 | 1 | 0 | 1,4-dimercaptobutane-2,3-diol;
butanediols;
dithiol;
glycol;
thiol | chelator;
human metabolite;
reducing agent |
dimethyl trisulfide
[no description available] | 4.64 | 25 | 0 | organic trisulfide | |
2-pentylfuran
2-pentylfuran: structure in first source. 2-pentylfuran : A member of the class of furans that is furan in which the hydrogen at position 2 is replaced by a pentyl group. It is found in many heat-processed foods and drinks. | 3.65 | 2 | 0 | furans | Aspergillus metabolite;
bacterial metabolite;
flavouring agent;
human urinary metabolite;
insect repellent;
plant growth stimulator;
volatile oil component |
limonene
Limonene: A naturally-occurring class of MONOTERPENES which occur as a clear colorless liquid at room temperature. Limonene is the major component in the oil of oranges which has many uses, including as flavor and fragrance. It is recognized as safe in food by the Food and Drug Administration (FDA).. limonene : A monoterpene that is cyclohex-1-ene substituted by a methyl group at position 1 and a prop-1-en-2-yl group at position 4 respectively. | 2.43 | 2 | 0 | cycloalkene;
p-menthadiene | human metabolite |
dimethylpropiothetin
dimethylpropiothetin: has antineoplastic activity; RN given refers to hydroxide inner salt. S,S-dimethyl-beta-propiothetin : A sulfonium betaine obtained by deprotonation of the carboxy group of 3-dimethylsulfoniopropionic acid. | 2.44 | 2 | 0 | sulfonium betaine | marine metabolite;
osmolyte |
molybdenum
Molybdenum: A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.95. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase. | 2.41 | 2 | 0 | chromium group element atom | micronutrient |
platinum
Platinum: A heavy, soft, whitish metal, resembling tin, with atomic number 78, atomic weight 195.084, symbol Pt. It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as alutiae. | 2 | 1 | 0 | elemental platinum;
nickel group element atom;
platinum group metal atom | |
silver
Silver: An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA. | 2.07 | 1 | 0 | copper group element atom;
elemental silver | Escherichia coli metabolite |
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 | |
tungsten
Tungsten: A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus. | 2.13 | 1 | 0 | chromium group element atom | micronutrient |
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. | 2.46 | 2 | 0 | copper group element atom;
elemental gold | |
galactosamine
2-amino-2-deoxy-D-galactopyranose : The pyranose form of D-galactosamine.. D-galactosamine : The D-stereoisomer of galactosamine. | 2.37 | 2 | 0 | D-galactosamine;
primary amino compound | toxin |
phosphine
phosphane : The simplest phosphine, consisting of a single phosphorus atom with three hydrogens attached.. phosphine : Phosphane (PH3) and compounds derived from it by substituting one, two or three hydrogen atoms by hydrocarbyl groups: RPH2, R2PH, R3P (R =/= H) are called primary, secondary and tertiary phosphines, respectively. A specific phosphine is preferably named as a substituted phosphane. | 2.03 | 1 | 0 | mononuclear parent hydride;
phosphanes;
phosphine | carcinogenic agent;
fumigant insecticide |
sodium sulfate
[no description available] | 2.03 | 1 | 0 | inorganic sodium salt | |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.1 | 1 | 0 | dihydrogen | |
ozone
Ozone: The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).. ozone : An elemental molecule with formula O3. An explosive, pale blue gas (b.p. -112degreeC) that has a characteristic, pungent odour, it is continuously produced in the upper atmosphere by the action of solar ultraviolet radiation on atmospheric oxygen. It is an antimicrobial agent used in the production of bottled water, as well as in the treatment of meat, poultry and other foodstuffs. | 2.99 | 4 | 0 | elemental molecule;
gas molecular entity;
reactive oxygen species;
triatomic oxygen | antiseptic drug;
disinfectant;
electrophilic reagent;
greenhouse gas;
mutagen;
oxidising agent;
tracer |
1,3-dichloro-1-propene
1,3-dichloro-1-propene: soil fumigant; RN given refers to cpd without isomeric designation; structure. 1,3-dichloropropene : A chloropropene with two chloro substituents at positions 1 and 3 respectively.. | 2.08 | 1 | 0 | | |
carbendazim
carbendazim: carcinogen when combined with sodium nitrite; principle metabolite of thiophanate methyl & benomyl; structure. carbendazim : A member of the class of benzimidazoles that is 2-aminobenzimidazole in which the primary amino group is substituted by a methoxycarbonyl group. A fungicide, carbendazim controls Ascomycetes, Fungi Imperfecti, and Basidiomycetes on a wide variety of crops, including bananas, cereals, cotton, fruits, grapes, mushrooms, ornamentals, peanuts, sugarbeet, soybeans, tobacco, and vegetables. | 2.31 | 1 | 0 | benzimidazole fungicide;
benzimidazoles;
benzimidazolylcarbamate fungicide;
carbamate ester | antifungal agrochemical;
antinematodal drug;
metabolite;
microtubule-destabilising agent |
ammonium chloride
Ammonium Chloride: An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.. ammonium chloride : An inorganic chloride having ammonium as the counterion. | 2.37 | 2 | 0 | ammonium salt;
inorganic chloride | ferroptosis inhibitor |
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. | 2.05 | 1 | 0 | titanium oxides | food colouring |
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. | 2.72 | 3 | 0 | benzenes;
phenyl acetates | |
ethyl hexanoate
ethyl hexanoate : A fatty acid ethyl ester obtained by the formal condensation of hexanoic acid with ethanol. | 2.04 | 1 | 0 | fatty acid ethyl ester;
hexanoate ester | metabolite |
nonanal
nonanal : A saturated fatty aldehyde formally arising from reduction of the carboxy group of nonanoic acid. Metabolite observed in cancer metabolism. | 2.13 | 1 | 0 | medium-chain fatty aldehyde;
n-alkanal;
saturated fatty aldehyde | human metabolite;
plant metabolite |
alkenes
[no description available] | 3.14 | 5 | 0 | | |
ng-nitroarginine methyl ester
NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. | 2.15 | 1 | 0 | alpha-amino acid ester;
L-arginine derivative;
methyl ester;
N-nitro compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor |
glucose, (beta-d)-isomer
beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages. | 3.51 | 2 | 0 | D-glucopyranose | epitope;
mouse metabolite |
allyl methyl sulfide
[no description available] | 2 | 1 | 0 | organic sulfide | |
dimethyl sulfite
[no description available] | 2.05 | 1 | 0 | sulfite ester | |
methiin
methiin: distributed in Liliaceae(garlic, onions, etc.) & Cruciferae (cabbage, radish, etc.); one of greater sources of sulfur-containing amino acids in Japan; studied for nutritional value; increased splenic iron decrease erythrocyte counts; RN given refers to cpd without isomeric designation | 1.95 | 1 | 0 | alpha-amino acid | |
diploptene
diploptene: biosynthesized in a cell-free system from Acetobacter pasteurianum in the presence of squalene. hop-22(29)-ene : A triterpene consisting of hopane having a C=C double bond at the 22(29)-position. | 2.06 | 1 | 0 | triterpene | |
methyl methanethiosulfinate
methyl methanethiosulfinate: structure in first source; a metabolite of S-methyl cysteine sulfoxide | 2.08 | 1 | 0 | sulfur oxoacid derivative | |
cellulose sulfate
cellulose sulfate: RN given refers to cpd with unknown MF; vaginal gel being developed as both a contraceptive and blockage to STD somewhat like nonoxynol-9 | 1.98 | 1 | 0 | ether;
flavonoids | |
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 |
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. | 2.03 | 1 | 0 | | |
miserotoxin
miserotoxin: toxin from Emory milkvetch; measured by nitro moiety. miserotoxin : A beta-D-glucoside having 3-nitropropyl as the anomeric alkyl group. | 3.06 | 1 | 0 | beta-D-glucoside;
C-nitro compound | phytotoxin |
bifendate
7,7'-dimethoxy-(4,4'-bi-1,3-benzodioxole)-5,5'-dicarboxylic acid dimethyl ester: structure given in first source | 2.01 | 1 | 0 | | |
valerates
Valerates: Derivatives of valeric acid, including its salts and esters. | 2.11 | 1 | 0 | short-chain fatty acid anion;
straight-chain saturated fatty acid anion | plant metabolite |
selenocystamine
selenocystamine: RN given refers to parent cpd; structure | 1.96 | 1 | 0 | organoselenium compound | |
caprylates
Caprylates: Derivatives of caprylic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain a carboxy terminated eight carbon aliphatic structure.. octanoate : A straight-chain saturated fatty acid anion that is the conjugate base of octanoic acid (caprylic acid); believed to block adipogenesis. | 3.22 | 6 | 0 | fatty acid anion 8:0;
straight-chain saturated fatty acid anion | human metabolite;
Saccharomyces cerevisiae metabolite |
4,4-dimethyloxazoline
4,4-dimethyl-2-oxazoline: structure in first source | 2.01 | 1 | 0 | | |
trichloromethyl free radical
trichloromethyl free radical: able to react with amino acid esters | 1.97 | 1 | 0 | organic radical | |
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. | 2.07 | 1 | 0 | fullerene | geroprotector |
xylose
xylopyranose: structure in first source | 2.6 | 1 | 0 | D-xylose | |
hydroxyl radical
Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent. | 2.96 | 4 | 0 | oxygen hydride;
oxygen radical;
reactive oxygen species | |
fenton's reagent
Fenton's reagent: used for oxidizing sugars & alcohols | 2.47 | 2 | 0 | | |
2-dodecylcyclobutanone
[no description available] | 2.07 | 1 | 0 | cyclic ketone | |
ergosterol
[no description available] | 2.25 | 1 | 0 | 3beta-hydroxy-Delta(5)-steroid;
3beta-sterol;
ergostanoid;
phytosterols | fungal metabolite;
Saccharomyces cerevisiae metabolite |
palmitoleic acid
hexadecenoate : A long-chain unsaturated fatty acid anion that is the conjugate base of hexadecenoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. | 2.08 | 1 | 0 | hexadec-9-enoic acid | algal metabolite;
Daphnia galeata metabolite;
EC 3.1.1.1 (carboxylesterase) inhibitor;
Escherichia coli metabolite;
human blood serum metabolite |
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). | 2.21 | 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 |
2-tetradecylcyclobutanone
2-tetradecylcyclobutanone: structure in first source | 2.07 | 1 | 0 | cyclic ketone | |
squalene
Addavax: an oil-water nanoemulsion and adjuvant containing squalene, Tween 80, and sorbitane trioleate | 2.06 | 1 | 0 | triterpene | human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
sesquiterpenes
[no description available] | 2.11 | 1 | 0 | | |
thioacetamide
Thioacetamide: A crystalline compound used as a laboratory reagent in place of HYDROGEN SULFIDE. It is a potent hepatocarcinogen.. thioacetamide : A thiocarboxamide consiting of acetamide having the oxygen replaced by sulfur. | 1.97 | 1 | 0 | thiocarboxamide | hepatotoxic agent |
nadp
[no description available] | 1.97 | 1 | 0 | | |
6-thiouric acid
6-thiouric acid: structure | 2.13 | 1 | 0 | oxopurine | |
cystine
[no description available] | 2.47 | 2 | 0 | | |
diethyl maleate
diethyl maleate : A maleate ester resulting from the formal condensation of both carboxy groups of maleic acid with ethanol. A colourless liquid at room temperature (m.p. -10degreeC) with boiling point 220degreeC at 1 atm., it is commonly used as a dienophile for Diels-Alder-type cycloaddition reactions in organic synthesis. | 2.03 | 1 | 0 | ethyl ester;
maleate ester | glutathione depleting agent |
tectorigenin
tectorigenin: tectoridin is glycosylated form. tectorigenin : A methoxyisoflavone that is isoflavone substituted by a methoxy group at position 6 and hydroxy groups at positions 5, 7 and 4' respectively. | 2.01 | 1 | 0 | 7-hydroxyisoflavones;
methoxyisoflavone | anti-inflammatory agent;
plant metabolite |
ubiquinone 8
[no description available] | 2.13 | 1 | 0 | ubiquinones | biomarker |
methyl linoleate
[no description available] | 7.13 | 1 | 0 | fatty acid methyl ester | plant metabolite |
octadecadienoic acid
octadecadienoic acid: location of unsaturation not specified. octadecadienoate : A long-chain, unsaturated fatty acid anion formed by deprotonation of the carboxy group of any octadecadienoic acid; major species at pH 7.3.. octadecadienoic acid : Any straight-chain, C18 polyunsaturated fatty acid having two C=C double bonds. | 7.44 | 2 | 0 | | |
ligustilide
ligustilide: found in Umbelliferae plants; RN given refers to cpd without isomeric designation; structure in first source | 2.11 | 1 | 0 | butenolide | metabolite |
caryophyllene
caryophyllene: RN given refers to cpd without isomeric designation; structure given in first source | 2.11 | 1 | 0 | | |
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. | 4.87 | 33 | 0 | chalcogen;
nonmetal atom | macronutrient |
8-heptadecene
[no description available] | 2.47 | 2 | 0 | | |
ajoene
ajoene: major antiplatelet compound in methanol extract of garlic; also inhibits trypanothione reductase. | 2.21 | 1 | 0 | sulfoxide | |
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. | 8.11 | 5 | 0 | cysteinium | fundamental metabolite |
selenium
Selenium: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. | 1.96 | 1 | 0 | chalcogen;
nonmetal atom | micronutrient |
tellurium
Tellurium: An element that is a member of the chalcogen family. It has the atomic symbol Te, atomic number 52, and atomic weight 127.60. It has been used as a coloring agent and in the manufacture of electrical equipment. Exposure may cause nausea, vomiting, and CNS depression. | 2.04 | 1 | 0 | chalcogen;
metalloid atom | |
oxalates
Oxalates: Derivatives of OXALIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are derived from the ethanedioic acid structure. | 3.06 | 1 | 0 | | |
zeolites
[no description available] | 2.13 | 1 | 0 | | |
aluminum oxide
Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. | 2.7 | 3 | 0 | | |
cytochrome c-t
Cytochromes c: Cytochromes of the c type that are found in eukaryotic MITOCHONDRIA. They serve as redox intermediates that accept electrons from MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III and transfer them to MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV. | 2.15 | 1 | 0 | | |
cellulose
DEAE-Cellulose: Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications. | 1.98 | 1 | 0 | glycoside | |
chlorophyll a
Chlorophyll: Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.. chlorophyll : A family of magnesium porphyrins, defined by the presence of a fifth ring beyond the four pyrrole-like rings. The rings can have various side chains which usually include a long phytol chain. | 2.08 | 1 | 0 | chlorophyll;
methyl ester | cofactor |
ubiquinone
Ubiquinone: A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals. | 2.13 | 1 | 0 | | |
chitosan
[no description available] | 3.7 | 1 | 0 | | |
methylcellulose
Methylcellulose: Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative. | 1.99 | 1 | 0 | | |
clay
Clay: A naturally-occurring rock or soil constituent characterized by particles with a diameter of less than 0.005 mm. It is composed primarily of hydrous aluminum silicates, trace amounts of metal OXIDES, and organic matter. | 2.1 | 1 | 0 | | |
2-methylisoborneol
2-methylisoborneol: structure. 2-methylisoborneol : An bornane monoterpenoid comprising isoborneol carrying a 2-methyl substituent (the 1R,2R,4R-diastereomer). | 2.08 | 1 | 0 | | |
guanine
[no description available] | 1.97 | 1 | 0 | 2-aminopurines;
oxopurine;
purine nucleobase | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
concanavalin a
Concanavalin A: A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures. | 1.99 | 1 | 0 | | |