ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 2.44 | 2 | 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 |
formic acid
formic acid: RN given refers to parent cpd. formic acid : The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects. | 2.06 | 1 | 0 | monocarboxylic acid | antibacterial agent;
astringent;
metabolite;
protic solvent;
solvent |
toluene
methylbenzene : Any alkylbenzene that is benzene substituted with one or more methyl groups. | 2.05 | 1 | 0 | methylbenzene;
toluenes;
volatile organic compound | cholinergic antagonist;
fuel additive;
neurotoxin;
non-polar solvent |
uracil
2,4-dihydroxypyrimidine: a urinary biomarker for bipolar disorder | 2.06 | 1 | 0 | pyrimidine nucleobase;
pyrimidone | allergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
prodrug;
Saccharomyces cerevisiae metabolite |
ethacridine
Ethacridine: A topically applied anti-infective agent. | 2.02 | 1 | 0 | acridines | |
antipyrine
Antipyrine: An analgesic and antipyretic that has been given by mouth and as ear drops. Antipyrine is often used in testing the effects of other drugs or diseases on drug-metabolizing enzymes in the liver. (From Martindale, The Extra Pharmacopoeia, 30th ed, p29). antipyrine : A pyrazolone derivative that is 1,2-dihydropyrazol-3-one substituted with methyl groups at N-1 and C-5 and with a phenyl group at N-2. | 2.04 | 1 | 0 | pyrazolone | antipyretic;
cyclooxygenase 3 inhibitor;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic |
cefixime
Cefixime: A third-generation cephalosporin antibiotic that is stable to hydrolysis by beta-lactamases.. cefixime : A third-generation cephalosporin antibiotic bearing vinyl and (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-[(carboxymethoxy)imino]acetamido groups at positions 3 and 7, respectively, of the cephem skeleton. It is used in the treatment of gonorrhoea, tonsilitis, pharyngitis, bronchitis, and urinary tract infections. | 7.06 | 1 | 0 | | |
gossypol
Gossypol: A dimeric sesquiterpene found in cottonseed (GOSSYPIUM). The (-) isomer is active as a male contraceptive (CONTRACEPTIVE AGENTS, MALE) whereas toxic symptoms are associated with the (+) isomer. | 2.08 | 1 | 0 | | |
idebenone
[no description available] | 7.07 | 1 | 0 | 1,4-benzoquinones;
primary alcohol | antioxidant;
ferroptosis inhibitor |
cyanides
Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.. cyanides : Salts and C-organyl derivatives of hydrogen cyanide, HC#N.. isocyanide : The isomer HN(+)#C(-) of hydrocyanic acid, HC#N, and its hydrocarbyl derivatives RNC (RN(+)#C(-)).. cyanide : A pseudohalide anion that is the conjugate base of hydrogen cyanide. | 2.03 | 1 | 0 | pseudohalide anion | EC 1.9.3.1 (cytochrome c oxidase) inhibitor |
carbostyril
Quinolones: A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID.. quinolin-2(1H)-one : A quinolone that is 1,2-dihydroquinoline substituted by an oxo group at position 2. | 2.11 | 1 | 0 | monohydroxyquinoline;
quinolone | bacterial xenobiotic metabolite |
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. | 1.97 | 1 | 0 | aliphatic nitrile;
volatile organic compound | EC 3.5.1.4 (amidase) inhibitor;
NMR chemical shift reference compound;
polar aprotic solvent |
phosgene
Phosgene: A highly toxic gas that has been used as a chemical warfare agent. It is an insidious poison as it is not irritating immediately, even when fatal concentrations are inhaled. (From The Merck Index, 11th ed, p7304). phosgene : An acyl chloride obtained by substitution of both hydrogens of formaldehyde by chlorine.. chloroketone : A ketone containing a chloro substituent. | 2.06 | 1 | 0 | acyl chloride | |
propylene oxide
propylene oxide: structure. 1,2-epoxypropane : An epoxide that is oxirane substituted by a methyl group at position 2. | 2.15 | 1 | 0 | epoxide | |
acenaphthenequinone
acenaphthoquinone : An orthoquinone that is the 1,2-dioxo derivative of acenaphthene. | 2.08 | 1 | 0 | orthoquinones | chain carrier;
epitope |
salicylaldehyde
o-hydroxybenzaldehyde: structure in first source | 2.15 | 1 | 0 | hydroxybenzaldehyde | nematicide;
plant metabolite |
dicyanmethane
malononitrile : A dinitrile that is methane substituted by two cyano groups. | 2.47 | 2 | 0 | aliphatic nitrile;
dinitrile | |
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. | 2.06 | 1 | 0 | furans;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | carcinogenic agent;
hepatotoxic agent;
Maillard reaction product |
thiophenes
Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring. | 2.15 | 1 | 0 | mancude organic heteromonocyclic parent;
monocyclic heteroarene;
thiophenes;
volatile organic compound | non-polar solvent |
2'-hydroxyacetophenone
2-acetylphenol : A monohydroxyacetophenone that is acetophenone in which one of the hydrogens ortho to the acetyl group has been replaced by a hydroxy group. | 2.13 | 1 | 0 | monohydroxyacetophenone;
phenols | flavouring agent |
triethylamine
[no description available] | 2.25 | 1 | 0 | tertiary amine | |
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. | 2.76 | 3 | 0 | 1,3-oxazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
thiazoles
[no description available] | 2.02 | 1 | 0 | 1,3-thiazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
cyanoacetic acid
cyanoacetic acid: RN given refers to parent cpd; structure. cyanoacetic acid : A monocarboxylic acid that consists of acetic acid bearing a cyano substituent. | 2.06 | 1 | 0 | monocarboxylic acid | |
hydantoins
Hydantoins: Compounds based on imidazolidine dione. Some derivatives are ANTICONVULSANTS.. imidazolidine-2,4-dione : An imidazolidinone with oxo groups at position 2 and 4. | 2.08 | 1 | 0 | imidazolidine-2,4-dione | |
4-nitrophenyl acetate
[no description available] | 2.06 | 1 | 0 | C-nitro compound;
phenyl acetates | |
tetrabutylammonium
tetrabutylammonium: lipophilic probe; RN given refers to parent cpd | 1.97 | 1 | 0 | quaternary ammonium ion | |
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. | 2.1 | 1 | 0 | metal allergen;
nickel 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. | 2.07 | 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. | 2.06 | 1 | 0 | benzenes;
phenyl acetates | |
adenylyl imidodiphosphate
Adenylyl Imidodiphosphate: 5'-Adenylic acid, monoanhydride with imidodiphosphoric acid. An analog of ATP, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. It is a potent competitive inhibitor of soluble and membrane-bound mitochondrial ATPase and also inhibits ATP-dependent reactions of oxidative phosphorylation. | 2.02 | 1 | 0 | adenosine 5'-phosphate | |
prenalterol
Prenalterol: A partial adrenergic agonist with functional beta 1-receptor specificity and inotropic effect. It is effective in the treatment of acute CARDIAC FAILURE, postmyocardial infarction low-output syndrome, SHOCK, and reducing ORTHOSTATIC HYPOTENSION in the SHY-RAGER SYNDROME. | 2 | 1 | 0 | aromatic ether | |
thiamorpholine
thiamorpholine: RN given refers to parent cpd. thiomorpholine : A saturated organic heteromonocyclic parent that is an analogue of morpholine where the oxygen atom is replaced by sulfur. | 2.08 | 1 | 0 | saturated organic heteromonocyclic parent;
thiomorpholines | |
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. | 2.46 | 2 | 0 | 1,2,3-triazole | |
bis(trichloromethyl) carbonate
[no description available] | 2.06 | 1 | 0 | | |
nothapodytine b
nothapodytine B: isolated from Nothapodytes foetida; structure in first source | 2.01 | 1 | 0 | | |
polygalacturonic acid
galacturonic acid: N1 same as NM; RN given refers to parent cpd with unspecified isomeric designation. D-galactopyranuronic acid : The pyranose form of D-galacturonic acid. D-galacturonic acid : The D-enantiomer of galacturonic acid. It is the main component of pectin. | 1.98 | 1 | 0 | D-galacturonic acid | |
cellulase
Cellulase: An endocellulase with specificity for the hydrolysis of 1,4-beta-glucosidic linkages in CELLULOSE, lichenin, and cereal beta-glucans.. beta-cellotriose : A cellotriose with a beta-configuration at the anomeric position. | 1.98 | 1 | 0 | cellotriose | |
pectins
Pectins: High molecular weight polysaccharides present in the cell walls of all plants. Pectins cement cell walls together. They are used as emulsifiers and stabilizers in the food industry. They have been tried for a variety of therapeutic uses including as antidiarrheals, where they are now generally considered ineffective, and in the treatment of hypercholesterolemia.. alpha-D-galacturonic acid : The alpha-anomer of D-galacturonic acid. | 1.98 | 1 | 0 | D-galactopyranuronic acid | |
keratan sulfate
Keratan Sulfate: A sulfated mucopolysaccharide initially isolated from bovine cornea. At least two types are known. Type I, found mostly in the cornea, contains D-galactose and D-glucosamine-6-O-sulfate as the repeating unit; type II, found in skeletal tissues, contains D-galactose and D-galactosamine-6-O-sulfate as the repeating unit.. keratan sulfate : A sulfated glycosaminoglycan, a linear polymer that consists of the repeating disaccharide [3)-beta-Gal-(1->4)-beta-GlcNAc-(1->] and containing sulfo groups located at random positions.. keratan 6'-sulfate : A keratan sulfate with random sulfation at the 6'-position. | 2.02 | 1 | 0 | | |
glycosides
[no description available] | 2.02 | 1 | 0 | | |
D-fructopyranose
[no description available] | 2.02 | 1 | 0 | cyclic hemiketal;
D-fructose;
fructopyranose | sweetening agent |
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. | 2.02 | 1 | 0 | chalcogen;
nonmetal atom | macronutrient |
pregabalin
Pregabalin: A gamma-aminobutyric acid (GABA) derivative that functions as a CALCIUM CHANNEL BLOCKER and is used as an ANTICONVULSANT as well as an ANTI-ANXIETY AGENT. It is also used as an ANALGESIC in the treatment of NEUROPATHIC PAIN and FIBROMYALGIA.. pregabalin : A gamma-amino acid that is gamma-aminobutyric acid (GABA) carrying an isobutyl substitutent at the beta-position (the S-enantiomer). Binds with high affinity to the alpha2-delta site (an auxiliary subunit of voltage-gated calcium channels) in central nervous system tissues. | 2.13 | 1 | 0 | gamma-amino acid | anticonvulsant;
calcium channel blocker |
zeolites
[no description available] | 2.06 | 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. | 2.02 | 1 | 0 | | |
thienopyrimidine
thienopyrimidine: structure in first source. thienopyrimidine : A class of aromatic heterobicyclic compounds each of which contains a pyrimidine ring ortho fused to a 5-membered thiophene ring. | 2.02 | 1 | 0 | | |
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. | 7.47 | 2 | 0 | | |
warfarin
Warfarin: An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.. warfarin : A racemate comprising equal amounts of (R)- and (S)-warfarin. Extensively used as both an anticoagulant drug and as a pesticide against rats and mice.. 4-hydroxy-3-(3-oxo-1-phenylbutyl)-1-benzopyran-2-one : A member of the class of coumarins that is 4-hydroxycoumarin which is substituted at position 3 by a 1-phenyl-3-oxo-1-butyl group. | 2.15 | 1 | 0 | benzenes;
hydroxycoumarin;
methyl ketone | |
chondrosine
chondrosine: obtained by degradation of chondroitin sulfates; structure given in first source | 2.03 | 1 | 0 | O-acyl carbohydrate | |
nitrophenols
Nitrophenols: PHENOLS carrying nitro group substituents. | 2.06 | 1 | 0 | | |
hyaluronoglucosaminidase
Hyaluronoglucosaminidase: An enzyme that catalyzes the random hydrolysis of 1,4-linkages between N-acetyl-beta-D-glucosamine and D-glucuronate residues in hyaluronate. (From Enzyme Nomenclature, 1992) There has been use as ANTINEOPLASTIC AGENTS to limit NEOPLASM METASTASIS. | 2.41 | 2 | 0 | | |
chondroitin sulfates
Chondroitin Sulfates: Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate. | 2.06 | 1 | 0 | | |
zaprinast
zaprinast: anaphylaxis inhibitor; structure | 2.05 | 1 | 0 | triazolopyrimidines | |
sildenafil citrate
Sildenafil Citrate: A PHOSPHODIESTERASE TYPE-5 INHIBITOR; VASODILATOR AGENT and UROLOGICAL AGENT that is used in the treatment of ERECTILE DYSFUNCTION and PRIMARY PULMONARY HYPERTENSION.. sildenafil citrate : The citrate salt of sildenafil. | 2.05 | 1 | 0 | citrate salt | EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor;
vasodilator agent |