carbon monoxide
Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas. | 2.07 | 1 | 0 | carbon oxide;
gas molecular entity;
one-carbon compound | biomarker;
EC 1.9.3.1 (cytochrome c oxidase) inhibitor;
human metabolite;
ligand;
metabolite;
mitochondrial respiratory-chain inhibitor;
mouse metabolite;
neurotoxin;
neurotransmitter;
P450 inhibitor;
probe;
signalling molecule;
vasodilator agent |
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). | 2.02 | 1 | 0 | alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound | bacterial metabolite;
fossil fuel;
greenhouse gas |
imidazole
imidazole: RN given refers to parent cpd. 1H-imidazole : An imidazole tautomer which has the migrating hydrogen at position 1. | 2.13 | 1 | 0 | imidazole | |
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 indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 2.1 | 1 | 0 | indole-3-acetic acids;
monocarboxylic acid | auxin;
human metabolite;
mouse metabolite;
plant hormone;
plant metabolite |
iodine
Iodine: A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.. diiodine : Molecule comprising two covalently bonded iodine atoms with overall zero charge.. | 2.06 | 1 | 0 | diatomic iodine | nutrient |
urea
pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives. | 4.13 | 15 | 0 | isourea;
monocarboxylic acid amide;
one-carbon compound | Daphnia magna metabolite;
Escherichia coli metabolite;
fertilizer;
flour treatment agent;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
propane
Propane: A three carbon alkane with the formula H3CCH2CH3. | 2.1 | 1 | 0 | alkane;
gas molecular entity | food propellant |
cyclopropane
cyclopropane : A cycloalkane composed of three carbon atoms to form a ring. | 2.06 | 1 | 0 | cycloalkane;
cyclopropanes | inhalation anaesthetic |
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. | 2.02 | 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 |
dicyanmethane
malononitrile : A dinitrile that is methane substituted by two cyano groups. | 2.02 | 1 | 0 | aliphatic nitrile;
dinitrile | |
butyl isocyanate
n-butyl isocyanate : An isocyanate having a butyl group attached to the nitrogen. | 2.02 | 1 | 0 | isocyanates | allergen |
triethylamine
[no description available] | 2.1 | 1 | 0 | tertiary amine | |
sodium carbonate
sodium carbonate: used topically for dermatitides, mouthwash, vaginal douche; veterinary use as emergency emetic; RN given refers to carbonic acid, di-Na salt; structure | 2.06 | 1 | 0 | carbonate salt;
organic sodium salt | |
oxetane
oxetane: structure. oxetane : A saturated organic heteromonocyclic parent that is a four-membered ring comprising of three carbon atoms and an oxygen atom. | 2.06 | 1 | 0 | oxetanes;
saturated organic heteromonocyclic parent | |
1,3-cyclohexanedione
1,3-cyclohexanedione: structure. cyclohexane-1,3-dione : A cyclohexanedione carrying oxo substituents at positions 1 and 3. | 2.25 | 1 | 0 | beta-diketone;
cyclohexanedione | |
potassium carbonate
potassium carbonate : A potassium salt that is the dipotassium salt of carbonic acid. | 2.02 | 1 | 0 | carbonate salt;
potassium salt | catalyst;
fertilizer;
flame retardant |
carbonates
Carbonates: Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed). carbonates : Organooxygen compounds that are salts or esters of carbonic acid, H2CO3. | 2.73 | 3 | 0 | carbon oxoanion | |
palladium
Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46. | 2.07 | 1 | 0 | metal allergen;
nickel group element atom;
platinum group metal atom | |
ruthenium
Ruthenium: A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101.07. It is used as a catalyst and hardener for PLATINUM and PALLADIUM. | 2.02 | 1 | 0 | iron group element atom;
platinum group metal atom | |
tiletamine hydrochloride
Cyclohexanones: Cyclohexane ring substituted by one or more ketones in any position.. cyclohexanones : Any alicyclic ketone based on a cyclohexane skeleton and its substituted derivatives thereof. | 2.25 | 1 | 0 | | |
benomyl
[no description available] | 7.72 | 3 | 0 | aromatic amide;
benzimidazole fungicide;
benzimidazoles;
benzimidazolylcarbamate fungicide;
carbamate ester | acaricide;
anthelminthic drug;
antifungal agrochemical;
microtubule-destabilising agent;
tubulin modulator |
iodine
[no description available] | 2.07 | 1 | 0 | halide anion;
monoatomic iodine | human metabolite |
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. | 2.02 | 1 | 0 | benzenes;
phenyl acetates | |
acetylacetone
acetylacetone : A beta-diketone that is pentane in which the hydrogens at positions 2 and 4 are replaced by oxo groups. | 2.02 | 1 | 0 | beta-diketone | |
nitroacetic acid
nitroacetic acid: inhibits succinate dehydrogenase; RN given refers to parent cpd | 2.02 | 1 | 0 | | |
oxazolidin-2-one
Oxazolidinones: Derivatives of oxazolidin-2-one. They represent an important class of synthetic antibiotic agents.. oxazolidin-2-one : An oxazolidinone that is 1,3-oxazolidine with an oxo substituent at position 2.. oxazolidinone : An oxazolidine containing one or more oxo groups. | 2.04 | 1 | 0 | carbamate ester;
oxazolidinone | metabolite |
9,10-bis(phenylethynyl)anthracene
[no description available] | 2.1 | 1 | 0 | anthracenes;
arylacetylene;
benzenes | fluorochrome |
firefly luciferin
Firefly Luciferin: A benzothaizole which is oxidized by LUCIFERASES, FIREFLY to cause emission of light (LUMINESCENCE).. Photinus luciferin : A 1,3-thiazolemonocarboxylic acid consisting of 3,5-dihydrothiophene-4-carboxylic acid having a 6-hydroxybenzothiazol-2-yl group at the 2-position. | 2.1 | 1 | 0 | 1,3-thiazolemonocarboxylic acid;
benzothiazoles;
imidothioate | luciferin |
cyanates
Cyanates: Organic salts of cyanic acid containing the -OCN radical.. cyanates : Salts and esters of cyanic acid, HOC#N; compounds carrying the cyanate functional group -O-C#N.. isocyanates : Organonitrogen compounds that are derivatives of isocyanic acid; compounds containing the isocyanate functional group -N=C=O (as opposed to the cyanate group, -O-C#N). | 2.02 | 1 | 0 | | |
organophosphonates
hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.1 | 1 | 0 | divalent inorganic anion;
phosphite ion | |
sodium acetate, anhydrous
Sodium Acetate: The trihydrate sodium salt of acetic acid, which is used as a source of sodium ions in solutions for dialysis and as a systemic and urinary alkalizer, diuretic, and expectorant. | 2.06 | 1 | 0 | organic sodium salt | NMR chemical shift reference compound |
cysteine
Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | 2.06 | 1 | 0 | cysteinium | fundamental metabolite |
deoxyguanosine
[no description available] | 2.02 | 1 | 0 | purine 2'-deoxyribonucleoside;
purines 2'-deoxy-D-ribonucleoside | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |