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. | 2.41 | 2 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
choline
[no description available] | 2.9 | 4 | 0 | cholines | allergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter;
nutrient;
plant metabolite;
Saccharomyces cerevisiae metabolite |
chlorine
chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 2.41 | 1 | 0 | halide anion;
monoatomic chlorine | cofactor;
Escherichia coli metabolite;
human metabolite |
ethanolamine
[no description available] | 2.02 | 1 | 0 | ethanolamines;
primary alcohol;
primary amine | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
edrophonium
Edrophonium: A rapid-onset, short-acting cholinesterase inhibitor used in cardiac arrhythmias and in the diagnosis of myasthenia gravis. It has also been used as an antidote to curare principles.. edrophonium : A quaternary ammonium ion that is N-ethyl-N,N-dimethylanilinium in which one of the meta positions is substituted by a hydroxy group. It is a reversible inhibitor of cholinesterase, with a rapid onset (30-60 seconds after injection) but a short duration of action (5-15 minutes). The chloride salt is used in myasthenia gravis both diagnostically and to distinguish between under- or over-treatment with other anticholinesterases. It has also been used for the reversal of neuromuscular blockade in anaesthesia, and for the management of poisoning due to tetrodotoxin, a neuromuscular blocking toxin found in puffer fish and other marine animals. | 1.94 | 1 | 0 | phenols;
quaternary ammonium ion | antidote;
diagnostic agent;
EC 3.1.1.8 (cholinesterase) inhibitor |
neostigmine
Neostigmine: A cholinesterase inhibitor used in the treatment of myasthenia gravis and to reverse the effects of muscle relaxants such as gallamine and tubocurarine. Neostigmine, unlike PHYSOSTIGMINE, does not cross the blood-brain barrier.. neostigmine : A quaternary ammonium ion comprising an anilinium ion core having three methyl substituents on the aniline nitrogen, and a 3-[(dimethylcarbamoyl)oxy] substituent at position 3. It is a parasympathomimetic which acts as a reversible acetylcholinesterase inhibitor. | 1.94 | 1 | 0 | quaternary ammonium ion | antidote to curare poisoning;
EC 3.1.1.7 (acetylcholinesterase) inhibitor |
succinylcholine
Succinylcholine: A quaternary skeletal muscle relaxant usually used in the form of its bromide, chloride, or iodide. It is a depolarizing relaxant, acting in about 30 seconds and with a duration of effect averaging three to five minutes. Succinylcholine is used in surgical, anesthetic, and other procedures in which a brief period of muscle relaxation is called for.. succinylcholine : A quaternary ammonium ion that is the bis-choline ester of succinic acid. | 1.94 | 1 | 0 | quaternary ammonium ion;
succinate ester | drug allergen;
muscle relaxant;
neuromuscular agent |
tetraethylammonium
Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90) | 1.99 | 1 | 0 | quaternary ammonium ion | |
tolazoline
Tolazoline: A vasodilator that apparently has direct actions on blood vessels and also increases cardiac output. Tolazoline can interact to some degree with histamine, adrenergic, and cholinergic receptors, but the mechanisms of its therapeutic effects are not clear. It is used in treatment of persistent pulmonary hypertension of the newborn.. tolazoline : A member of the class of imidazoles that is 4,5-dihydro-1H-imidazole substituted by a benzyl group. | 1.94 | 1 | 0 | imidazoles | alpha-adrenergic antagonist;
antihypertensive agent;
vasodilator agent |
tyramine
[no description available] | 1.94 | 1 | 0 | monoamine molecular messenger;
primary amino compound;
tyramines | EC 3.1.1.8 (cholinesterase) inhibitor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter |
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. | 2.13 | 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 |
ethyl methanesulfonate
Ethyl Methanesulfonate: An antineoplastic agent with alkylating properties. It also acts as a mutagen by damaging DNA and is used experimentally for that effect.. ethyl methanesulfonate : A methanesulfonate ester resulting from the formal condensation of methanesulfonic acid with ethanol. | 2.39 | 2 | 0 | methanesulfonate ester | alkylating agent;
antineoplastic agent;
carcinogenic agent;
genotoxin;
mutagen;
teratogenic agent |
isoleucine
Isoleucine: An essential branched-chain aliphatic amino acid found in many proteins. It is an isomer of LEUCINE. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.. isoleucine : A 2-amino-3-methylpentanoic acid having either (2R,3R)- or (2S,3S)-configuration.. L-isoleucine : The L-enantiomer of isoleucine. | 2.01 | 1 | 0 | aspartate family amino acid;
isoleucine;
L-alpha-amino acid zwitterion;
L-alpha-amino acid;
proteinogenic amino acid | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
arginine
Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 2.01 | 1 | 0 | arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
triethyl phosphate
triethyl phosphate: structure. triethyl phosphate : A trialkyl phosphate that is the triethy ester derivative of phosphoric acid. | 2.02 | 1 | 0 | trialkyl phosphate | |
acrylic acid
acrylic acid: RN given refers to parent cpd. acrylic acid : A alpha,beta-unsaturated monocarboxylic acid that is ethene substituted by a carboxy group. | 2.6 | 1 | 0 | alpha,beta-unsaturated monocarboxylic acid | metabolite |
deanol
Deanol: An antidepressive agent that has also been used in the treatment of movement disorders. The mechanism of action is not well understood.. N,N-dimethylethanolamine : A tertiary amine that is ethanolamine having two N-methyl substituents. | 2.02 | 1 | 0 | ethanolamines;
tertiary amine | curing agent;
radical scavenger |
n-methylaminoethanol
N-methylaminoethanol: structure. N-methylethanolamine : An ethanolamine compound having an N-methyl substituent. | 2.02 | 1 | 0 | ethanolamines | |
ethyl acrylate
[no description available] | 2.05 | 1 | 0 | enoate ester | |
thiocyanate
thiocyanate: RN given refers to parent cpd. thiocyanate : A pseudohalide anion obtained by deprotonation of the thiol group of thiocyanic acid. | 2.41 | 1 | 0 | pseudohalide anion;
sulfur molecular entity | human metabolite |
docusate
Dioctyl Sulfosuccinic Acid: All-purpose surfactant, wetting agent, and solubilizer used in the drug, cosmetics, and food industries. It has also been used in laxatives and as cerumenolytics. It is usually administered as either the calcium, potassium, or sodium salt. | 2 | 1 | 0 | diester;
organosulfonic acid | |
1-methylpyridinium
1-methylpyridinium: RN given refers to parent cpd | 2.02 | 1 | 0 | methylpyridines | |
3-quinuclidinol
quinuclidin-3-Ol: structure in first source | 2.02 | 1 | 0 | quinuclidines;
secondary alcohol;
tertiary amine | |
beta-methylcholine
beta-methylcholine: RN given refers to non-isomeric parent cpd; see also record for methylcholine; do not confuse with alpha-methylcholine | 2.02 | 1 | 0 | cholines | |
homocholine
homocholine: record includes halides; iodide used as internal standard for paired-ion HPLC assay for choline; RN given refers to parent cpd | 2.02 | 1 | 0 | | |
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. | 2.41 | 1 | 0 | copper group element atom;
elemental silver | Escherichia coli metabolite |
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. | 2.05 | 1 | 0 | copper group element atom;
elemental gold | |
deuterium oxide
Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes. | 2 | 1 | 0 | deuterated compound;
water | NMR solvent |
monoethylcholine
monoethylcholine: competitively inhibits transport of choline; RN given refers to parent cpd | 2.02 | 1 | 0 | | |
tributyl phosphate
tributyl phosphate: a detergent. tributyl phosphate : A trialkyl phosphate that is the tributyl ester of phosphoric acid. | 2.02 | 1 | 0 | trialkyl phosphate | |
butanediol diacrylate
butanediol diacrylate: RN given is for 1,4-butanediol diacrylate; structure | 2.04 | 1 | 0 | | |
methylthioethanol
2-methylthioethanol : A primary alcohol that is the S-methyl derivative of mercaptoethanol. It is found as a volatile component in Cucumis melo Var. cantalupensis. | 2.02 | 1 | 0 | aliphatic sulfide;
primary alcohol | plant metabolite;
xenobiotic metabolite |
nicotine
(S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 1.94 | 1 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug;
biomarker;
immunomodulator;
mitogen;
neurotoxin;
nicotinic acetylcholine receptor agonist;
peripheral nervous system drug;
phytogenic insecticide;
plant metabolite;
psychotropic drug;
teratogenic agent;
xenobiotic |
lignin
Lignin: The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed). lignin : A polyphenylpropanoid derived from three monolignol monomers: trans-p-coumaryl alcohol, coniferol and trans-sinapyl alcohol. There is extensive cross-linking and no defined primary structure. | 2.72 | 2 | 0 | | |
sodium dodecyl sulfate
Sodium Dodecyl Sulfate: An anionic surfactant, usually a mixture of sodium alkyl sulfates, mainly the lauryl; lowers surface tension of aqueous solutions; used as fat emulsifier, wetting agent, detergent in cosmetics, pharmaceuticals and toothpastes; also as research tool in protein biochemistry.. sodium dodecyl sulfate : An organic sodium salt that is the sodium salt of dodecyl hydrogen sulfate. | 2 | 1 | 0 | organic sodium salt | detergent;
protein denaturant |
methanethiosulfonate
methanethiosulfonate: used for measurement of rhodanese activity; RN given refers to parent cpd | 2.91 | 4 | 0 | | |
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. | 2.91 | 4 | 0 | cysteinium | fundamental metabolite |
tetramethylrhodamine
tetramethylrhodamine: RN given refers to perchlorate; structure | 2 | 1 | 0 | xanthene dye | |
chitosan
[no description available] | 3.04 | 3 | 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. | 2.21 | 1 | 0 | | |