| 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. | 2.37 | 2 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 2.08 | 1 | 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 |
bis(4-nitrophenyl)phosphate
bis(4-nitrophenyl)phosphate: RN given refers to parent cpd | 1.98 | 1 | 0 | aryl phosphate | |
carbamates
[no description available] | 2.4 | 2 | 0 | amino-acid anion | |
choline
[no description available] | 2.35 | 2 | 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. | 1.93 | 1 | 0 | halide anion;
monoatomic chlorine | cofactor;
Escherichia coli metabolite;
human metabolite |
diacetyl
butane-2,3-dione : An alpha-diketone that is butane substituted by oxo groups at positions 2 and 3. It is a metabolite produced during the malolactic fermentation. | 1.97 | 1 | 0 | alpha-diketone | Escherichia coli metabolite;
Saccharomyces cerevisiae metabolite |
hydroxylamine
amino alcohol : An alcohol containing an amino functional group in addition to the alcohol-defining hydroxy group. | 7.1 | 1 | 0 | hydroxylamines | algal metabolite;
bacterial xenobiotic metabolite;
EC 1.1.3.13 (alcohol oxidase) inhibitor;
EC 4.2.1.22 (cystathionine beta-synthase) inhibitor;
EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor;
nitric oxide donor;
nucleophilic reagent |
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. | 2.08 | 1 | 0 | metal allergen;
nickel group element atom | epitope;
micronutrient |
parathion
[no description available] | 2.71 | 3 | 0 | C-nitro compound;
organic thiophosphate;
organothiophosphate insecticide | acaricide;
agrochemical;
avicide;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
mouse metabolite |
phenylacetic acid
phenylacetic acid : A monocarboxylic acid that is toluene in which one of the hydrogens of the methyl group has been replaced by a carboxy group. | 1.98 | 1 | 0 | benzenes;
monocarboxylic acid;
phenylacetic acids | allergen;
Aspergillus metabolite;
auxin;
EC 6.4.1.1 (pyruvate carboxylase) inhibitor;
Escherichia coli metabolite;
human metabolite;
plant growth retardant;
plant metabolite;
Saccharomyces cerevisiae metabolite;
toxin |
thiosulfates
Thiosulfates: Inorganic salts of thiosulfuric acid possessing the general formula R2S2O3.. thiosulfate(2-) : A divalent inorganic anion obtained by removal of both protons from thiosulfuric acid. | 2.01 | 1 | 0 | divalent inorganic anion;
sulfur oxide;
sulfur oxoanion | human metabolite |
1,3-dipropyl-8-cyclopentylxanthine
DPCPX : An oxopurine that is 7H-xanthine substituted at positions 1 and 3 by propyl groups and at position 8 by a cyclohexyl group. | 1.97 | 1 | 0 | oxopurine | adenosine A1 receptor antagonist;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
tacrine
Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders.. tacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease. | 1.98 | 1 | 0 | acridines;
aromatic amine | EC 3.1.1.7 (acetylcholinesterase) inhibitor |
aurintricarboxylic acid
Aurintricarboxylic Acid: A dye which inhibits protein biosynthesis at the initial stages. The ammonium salt (aluminon) is a reagent for the colorimetric estimation of aluminum in water, foods, and tissues.. aurintricarboxylic acid : A member of the class of quinomethanes that is 3-methylidene-6-oxocyclohexa-1,4-diene-1-carboxylic acid in which the methylidene hydrogens are replaced by 4-carboxy-3-hydroxyphenyl groups. The trisodium salt is the biological stain 'chrome violet CG' while the triammonium salt is 'aluminon'. | 2.1 | 1 | 0 | monohydroxybenzoic acid;
quinomethanes;
tricarboxylic acid | fluorochrome;
histological dye;
insulin-like growth factor receptor 1 antagonist |
baclofen
[no description available] | 1.98 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid;
monochlorobenzenes;
primary amino compound | central nervous system depressant;
GABA agonist;
muscle relaxant |
biperiden
Biperiden: A muscarinic antagonist that has effects in both the central and peripheral nervous systems. It has been used in the treatment of arteriosclerotic, idiopathic, and postencephalitic parkinsonism. It has also been used to alleviate extrapyramidal symptoms induced by phenothiazine derivatives and reserpine.. biperiden : A member of the class of piperidines that is N-propylpiperidine in which the methyl hydrogens have been replaced by hydroxy, phenyl, and 5-norbornen-2-yl groups. A muscarinic antagonist affecting both the central and peripheral nervous systems, it is used in the treatment of all forms of Parkinson's disease. | 2 | 1 | 0 | piperidines;
tertiary alcohol;
tertiary amino compound | antidote to sarin poisoning;
antidyskinesia agent;
antiparkinson drug;
muscarinic antagonist;
parasympatholytic |
chlorpyrifos
Chlorpyrifos: An organothiophosphate cholinesterase inhibitor that is used as an insecticide and as an acaricide.. chlorpyrifos : An organic thiophosphate that is O,O-diethyl hydrogen phosphorothioate in which the hydrogen of the hydroxy group has been replaced by a 3,5,6-trichloropyridin-2-yl group. | 2.46 | 2 | 0 | chloropyridine;
organic thiophosphate | acaricide;
agrochemical;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
environmental contaminant;
insecticide;
xenobiotic |
diazepam
Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5. | 2.66 | 3 | 0 | 1,4-benzodiazepinone;
organochlorine compound | anticonvulsant;
anxiolytic drug;
environmental contaminant;
sedative;
xenobiotic |
dichlorvos
Dichlorvos: An organophosphorus insecticide that inhibits ACETYLCHOLINESTERASE.. dichlorvos : An alkenyl phosphate that is the 2,2-dichloroethenyl ester of dimethyl phosphate. | 2.43 | 2 | 0 | alkenyl phosphate;
dialkyl phosphate;
organochlorine acaricide;
organophosphate insecticide | anthelminthic drug;
antibacterial agent;
antifungal agent;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor |
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. | 1.96 | 1 | 0 | phenols;
quaternary ammonium ion | antidote;
diagnostic agent;
EC 3.1.1.8 (cholinesterase) inhibitor |
malathion
Malathion: A wide spectrum aliphatic organophosphate insecticide widely used for both domestic and commercial agricultural purposes.. malathion : A racemate comprising equimolar amounts of (R) and (S)-malathion. It is a broad spectrum organophosphate proinsecticide used to control a wide range of pests including Coleoptera, Diptera, fruit flies, mosquitos and spider mites.. diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate : A diester that is diethyl succinate in which position 2 is substituted by a (dimethoxyphosphorothioyl)thio group. | 2.54 | 2 | 0 | diester;
ethyl ester;
organic thiophosphate | |
mechlorethamine
nitrogen mustard : Compounds having two beta-haloalkyl groups bound to a nitrogen atom, as in (X-CH2-CH2)2NR. | 2.11 | 1 | 0 | nitrogen mustard;
organochlorine compound | alkylating agent |
memantine
[no description available] | 6.98 | 1 | 0 | adamantanes;
primary aliphatic amine | antidepressant;
antiparkinson drug;
dopaminergic agent;
neuroprotective agent;
NMDA receptor antagonist |
methamidophos
methamidophos: structure. methamidophos : An organic thiophosphate resulting from the N-deacylation of the proinsecticide acephate. | 2 | 1 | 0 | organic thiophosphate;
organothiophosphate insecticide;
phosphoramide | acaricide;
agrochemical;
avicide |
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. | 1.97 | 1 | 0 | quaternary ammonium ion | antidote to curare poisoning;
EC 3.1.1.7 (acetylcholinesterase) inhibitor |
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. | 1.97 | 1 | 0 | barbiturates | anticonvulsant;
drug allergen;
excitatory amino acid antagonist;
sedative |
piracetam
Piracetam: A compound suggested to be both a nootropic and a neuroprotective agent. | 2.11 | 1 | 0 | organonitrogen compound;
organooxygen compound | |
procaine
Procaine: A local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1016).. procaine : A benzoate ester, formally the result of esterification of 4-aminobenzoic acid with 2-diethylaminoethanol but formed experimentally by reaction of ethyl 4-aminobenzoate with 2-diethylaminoethanol. | 6.93 | 1 | 0 | benzoate ester;
substituted aniline;
tertiary amino compound | central nervous system depressant;
drug allergen;
local anaesthetic;
peripheral nervous system drug |
procyclidine
Procyclidine: A muscarinic antagonist that crosses the blood-brain barrier and is used in the treatment of drug-induced extrapyramidal disorders and in parkinsonism.. procyclidine : A tertiary alcohol that consists of propan-1-ol substituted by a cyclohexyl and a phenyl group at position 1 and a pyrrolidin-1-yl group at position 3. | 2.11 | 1 | 0 | pyrrolidines;
tertiary alcohol | antidyskinesia agent;
antiparkinson drug;
muscarinic antagonist |
sodium fluoride
[no description available] | 1.96 | 1 | 0 | fluoride salt | mutagen |
tetraisopropylpyrophosphamide
Tetraisopropylpyrophosphamide: N,N',N'',N'''-Tetraisopropylpyrophosphamide. A specific inhibitor of pseudocholinesterases. It is commonly used experimentally to determine whether pseudo- or acetylcholinesterases are involved in an enzymatic process. | 1.98 | 1 | 0 | phosphoramide | |
trihexyphenidyl
Trihexyphenidyl: One of the centrally acting MUSCARINIC ANTAGONISTS used for treatment of PARKINSONIAN DISORDERS and drug-induced extrapyramidal movement disorders and as an antispasmodic. | 4.2 | 5 | 0 | amine | |
carbachol
Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS. | 2.25 | 1 | 0 | ammonium salt;
carbamate ester | cardiotonic drug;
miotic;
muscarinic agonist;
nicotinic acetylcholine receptor agonist;
non-narcotic analgesic |
isoflurophate
Isoflurophate: A di-isopropyl-fluorophosphate which is an irreversible cholinesterase inhibitor used to investigate the NERVOUS SYSTEM. | 3.85 | 12 | 0 | dialkyl phosphate | |
serine
Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.15 | 1 | 0 | L-alpha-amino acid;
proteinogenic amino acid;
serine family amino acid;
serine zwitterion;
serine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
lysine
Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 7.59 | 2 | 0 | aspartate family amino acid;
L-alpha-amino acid zwitterion;
L-alpha-amino acid;
lysine;
organic molecular entity;
proteinogenic amino acid | algal metabolite;
anticonvulsant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
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. | 2.64 | 3 | 0 | pseudohalide anion | EC 1.9.3.1 (cytochrome c oxidase) inhibitor |
physostigmine
Physostigmine: A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity. | 8.07 | 5 | 0 | carbamate ester;
indole alkaloid | antidote to curare poisoning;
EC 3.1.1.8 (cholinesterase) inhibitor;
miotic |
tubocurarine
Tubocurarine: A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae.. tubocurarine : A benzylisoquinoline alkaloid muscle relaxant which constitutes the active component of curare.. isoquinoline alkaloid : Any alkaloid that has a structure based on an isoquinoline nucleus. They are derived from the amino acids like tyrosine and phenylalanine. | 6.98 | 1 | 0 | bisbenzylisoquinoline alkaloid | drug allergen;
muscle relaxant;
nicotinic antagonist |
edetic acid
Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. | 2.42 | 2 | 0 | ethylenediamine derivative;
polyamino carboxylic acid;
tetracarboxylic acid | anticoagulant;
antidote;
chelator;
copper chelator;
geroprotector |
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. | 2.53 | 2 | 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 |
methacholine chloride
Methacholine Chloride: A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116) | 1.93 | 1 | 0 | quaternary ammonium salt | |
aniline
[no description available] | 2.21 | 1 | 0 | anilines;
primary arylamine | |
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. | 7.03 | 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 |
histidine
Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 7.47 | 2 | 0 | amino acid zwitterion;
histidine;
L-alpha-amino acid;
polar amino acid zwitterion;
proteinogenic amino acid | algal metabolite;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae 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. | 2.1 | 1 | 0 | aliphatic nitrile;
volatile organic compound | EC 3.5.1.4 (amidase) inhibitor;
NMR chemical shift reference compound;
polar aprotic solvent |
tri-o-cresyl phosphate
tri-o-cresyl phosphate: see also related IMOL S-140 | 2.37 | 2 | 0 | | |
phenothiazine
10H-phenothiazine : The 10H-tautomer of phenothiazine. | 6.93 | 1 | 0 | phenothiazine | ferroptosis inhibitor;
plant metabolite;
radical scavenger |
soman
Soman: An organophosphorus compound that inhibits cholinesterase. It causes seizures and has been used as a chemical warfare agent. | 9.27 | 106 | 0 | phosphonic ester | |
pyridostigmine bromide
Pyridostigmine Bromide: A cholinesterase inhibitor with a slightly longer duration of action than NEOSTIGMINE. It is used in the treatment of myasthenia gravis and to reverse the actions of muscle relaxants. | 5.48 | 12 | 0 | pyridinium salt | |
tributylamine
tributylamine: RN given refers to parent cpd | 2 | 1 | 0 | tertiary amine | |
butane
butane : A straight chain alkane composed of 4 carbon atoms. | 7.04 | 1 | 0 | alkane;
gas molecular entity | food propellant;
refrigerant |
sarin
Sarin: An organophosphorus ester compound that produces potent and irreversible inhibition of cholinesterase. It is toxic to the nervous system and is a chemical warfare agent.. isopropyl methylphosphonofluoridate : A phosphinic ester that is the isopropyl ester of methylphosphonofluoridic acid.. sarin : A racemate composed of equal amounts of (R)- and (S)-sarin. A potent and irreversible inhibitor of acetylcholinesterase that is toxic to the nervous system and is employed as a chemical warfare agent. | 9.28 | 106 | 0 | fluorine molecular entity;
phosphinic ester | |
obidoxime chloride
Obidoxime Chloride: Cholinesterase reactivator occurring in two interchangeable isomeric forms, syn and anti. | 5.06 | 41 | 0 | | |
benactyzine
Benactyzine: A centrally acting muscarinic antagonist. Benactyzine has been used in the treatment of depression and is used in research to investigate the role of cholinergic systems on behavior. | 4.03 | 4 | 0 | diarylmethane | |
paraoxon
[no description available] | 4.51 | 23 | 0 | aryl dialkyl phosphate;
organophosphate insecticide | EC 3.1.1.7 (acetylcholinesterase) inhibitor;
mouse metabolite |
galantamine
Galantamine: A benzazepine derived from norbelladine. It is found in GALANTHUS and other AMARYLLIDACEAE. It is a cholinesterase inhibitor that has been used to reverse the muscular effects of GALLAMINE TRIETHIODIDE and TUBOCURARINE and has been studied as a treatment for ALZHEIMER DISEASE and other central nervous system disorders.. galanthamine : A benzazepine alkaloid isolated from certain species of daffodils. | 2.03 | 1 | 0 | benzazepine alkaloid fundamental parent;
benzazepine alkaloid;
organic heterotetracyclic compound;
tertiary amino compound | antidote to curare poisoning;
cholinergic drug;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
plant metabolite |
fluorobenzenes
Fluorobenzenes: Derivatives of BENZENE that contain FLUORINE.. monofluorobenzene : The simplest member of the class of monofluorobenzenes that is benzene carrying a single fluoro substituent.. fluorobenzenes : Any fluoroarene that is a benzene or a substituted benzene carrying at least one fluoro group. | 3.41 | 1 | 0 | monofluorobenzenes | NMR chemical shift reference compound |
cis methyldioxolane
[no description available] | 1.97 | 1 | 0 | | |
mustard gas
Mustard Gas: Severe irritant and vesicant of skin, eyes, and lungs. It may cause blindness and lethal lung edema and was formerly used as a war gas. The substance has been proposed as a cytostatic and for treatment of psoriasis. It has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP-85-002, 1985) (Merck, 11th ed).. bis(2-chloroethyl) sulfide : An ethyl sulfide that is diethyl sulfide in which a hydrogen from each of the terminal methyl groups is replaced by a chlorine. It is a powerful vesicant regulated under the Chemical Weapons Convention. | 4.75 | 9 | 0 | ethyl sulfide;
organochlorine compound | alkylating agent;
carcinogenic agent;
vesicant |
echothiophate iodide
Echothiophate Iodide: A potent, long-acting cholinesterase inhibitor used as a miotic in the treatment of glaucoma.. ecothiopate iodide : The iodide salt of ecothiopate. An irreversible acetylcholinesterase inhibitor, it is used an ocular antihypertensive in the treatment of open-angle glaucoma, particularly when other drugs have proved inadequate. | 1.97 | 1 | 0 | iodide salt;
quaternary ammonium salt | antiglaucoma drug;
EC 3.1.1.8 (cholinesterase) inhibitor;
miotic |
dibutyl sulfide
[no description available] | 2 | 1 | 0 | aliphatic sulfide | |
2-naphthylacetic acid
2-naphthylacetic acid: RN given refers to parent cpd. 2-naphthylacetic acid : A naphthylacetic acid carrying a carboxy group at position 2. | 1.98 | 1 | 0 | naphthylacetic acid | |
2,6-dichloro-4-nitrophenol
[no description available] | 2.61 | 2 | 0 | | |
diethyl chlorophosphate
diethylchlorophosphate: structure in first source | 2.52 | 2 | 0 | | |
methylphosphonic acid
methylphosphonic acid : A one-carbon compound that is phosphonic acid in which the hydrogen attached to the phosphorus is substituted by a methyl group. | 2 | 1 | 0 | one-carbon compound;
phosphonic acids | |
malaoxon
malaoxon: minor descriptor (72-83); on-line & Index Medicus search MALATHION/AA (72-83). malaoxon : A racemate comprising equimolar amounts of (R) and (S)-malaoxon. It is the active insecticide of the proinsecticide malathion.. diethyl 2-[(dimethoxyphosphoryl)thio]succinate : A diester that is diethyl succinate in which position 2 is substituted by a (dimethoxyphosphoryl)thio group. | 2.08 | 1 | 0 | diester;
ethyl ester;
organic thiophosphate | |
beta-methylcholine
beta-methylcholine: RN given refers to non-isomeric parent cpd; see also record for methylcholine; do not confuse with alpha-methylcholine | 6.93 | 1 | 0 | cholines | |
o,o-diethyl o-3,5,6-trichloro-2-pyridyl phosphate
[no description available] | 2.08 | 1 | 0 | | |
manganese
Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035). manganese(4+) : A manganese cation that is monoatomic and has a formal charge of +4. | 1.96 | 1 | 0 | elemental manganese;
manganese group element atom | Escherichia coli metabolite;
micronutrient |
titanium
Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures. | 2.04 | 1 | 0 | titanium group element atom | |
silver nitrate
Silver Nitrate: A silver salt with powerful germicidal activity. It has been used topically to prevent OPHTHALMIA NEONATORUM. | 2.15 | 1 | 0 | inorganic nitrate salt;
silver salt | astringent |
sodium thiosulfate
sodium thiosulfate: do not confuse synonym sodium hyposulfite with sodium hyposulfite, synonym for di-Na salt of dithionous acid. sodium thiosulfate : An inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio. | 2.01 | 1 | 0 | inorganic sodium salt | antidote to cyanide poisoning;
antifungal drug;
nephroprotective agent |
chlorine
Chlorine: An element with atomic symbol Cl, atomic number 17, and atomic weight 35, and member of the halogen family. | 2.25 | 1 | 0 | diatomic chlorine;
gas molecular entity | bleaching agent |
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. | 2.04 | 1 | 0 | titanium oxides | food colouring |
fluorides
[no description available] | 3.12 | 5 | 0 | halide anion;
monoatomic fluorine | |
isofenphos
[no description available] | 6.98 | 1 | 0 | isopropyl ester;
organic phosphonate;
organothiophosphate insecticide;
phosphonic ester;
salicylates | agrochemical;
EC 3.1.1.7 (acetylcholinesterase) inhibitor |
alkenes
[no description available] | 2.07 | 1 | 0 | | |
glutamic acid
Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2.69 | 3 | 0 | glutamic acid;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
ferroptosis inducer;
micronutrient;
mouse metabolite;
neurotransmitter;
nutraceutical |
azides
Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3. | 2.21 | 1 | 0 | pseudohalide anion | mitochondrial respiratory-chain inhibitor |
thiocholine
Thiocholine: A mercaptocholine used as a reagent for the determination of CHOLINESTERASES. It also serves as a highly selective nerve stain. | 7.68 | 3 | 0 | | |
vx
VX nerve agent : A organic thiophosphate that is the ethyl ester of S-{2-[di(propan-2-yl)amino]ethyl} O hydrogen methylphosphonothioate. A toxic nerve agent used in chemical warfare. | 8.11 | 46 | 0 | organic thiophosphate;
tertiary amino compound | EC 3.1.1.7 (acetylcholinesterase) inhibitor;
neurotoxin |
metsulfuron methyl
metsulfuron methyl : A N-sulfonylurea in which the sulfonyl group is attached to a 2-(methoxycarbonyl)phenyl group while a (4-methoxy-6-methyl-1,3,5-triazin-2-yl group replaces one of the amino hydrogens of the remaining urea group. | 1.92 | 1 | 0 | 1,3,5-triazines;
benzoate ester;
N-sulfonylurea | environmental contaminant;
herbicide;
xenobiotic |
adenosine
quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | 2.01 | 1 | 0 | adenosines;
purines D-ribonucleoside | analgesic;
anti-arrhythmia drug;
fundamental metabolite;
human metabolite;
vasodilator agent |
2-butene
2-butene: RN given refers to cpd without isomeric designation | 2.07 | 1 | 0 | but-2-ene | |
caloreen
caloreen: glucose polymer with average length of five glucose units for dietary energy supplement. dextrin : Glucans produced by the hydrolysis of starch or glycogen. They are mixtures of polymers of D-glucose units linked by alpha(1->4) or alpha(1->6) glycosidic bonds. | 2.37 | 2 | 0 | | |
cyclohexyl methylphosphonofluoridate
cyclohexyl methylphosphonofluoridate: acetylcholinesterase inhibitor | 6.64 | 38 | 0 | | |
phosphoramidic acid
phosphoramidic acid: urease inhibitor; RN given refers to parent cpd; structure; do not confuse with phosphoramidites, which are organophosphorus compounds | 2.03 | 1 | 0 | phosphoric acid derivative | |
fluorophosphate
fluorophosphate: inhibits Phosphorylas phosphatase irreversibly; RN given refers to parent cpd | 1.98 | 1 | 0 | fluorine molecular entity;
phosphoric acid derivative | |
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. | 2.21 | 1 | 0 | 1,2,3-triazole | |
pentafluorobenzyl bromide
pentafluorobenzyl bromide : A member of the class benzyl bromides that is benzyl bromide in which the hydrogens at positions 2, 3, 4, 5 and 6 of the phenyl ring are replaced by fluoro groups. It is a versatile derivatization agent in chromatography and mass spectrometry. | 3.41 | 1 | 0 | benzyl bromides;
fluorobenzenes | |
propionylthiocholine
propionylthiocholine: substrate for cholinesterase; RN given refers to parent cpd | 1.98 | 1 | 0 | | |
diethylphosphorocyanidate
diethylphosphorocyanidate: reagent for solid phase peptide synthesis; structure | 2.06 | 1 | 0 | | |
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. | 2.05 | 1 | 0 | | |
2-(2-cresyl)-4h-1-3-2-benzodioxaphosphorin-2-oxide
2-(2-cresyl)-4H-1-3-2-benzodioxaphosphorin-2-oxide: cyclic metabolite of tri-o-cresyl phosphate; synergist for cholinesterase inhibitors | 1.96 | 1 | 0 | | |
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). | 2.21 | 1 | 0 | | |
tenax
tenax: porous polymer based on 2,6-diphenyl-p-phenylene oxide; used for trapping volatile organic compounds | 2.11 | 1 | 0 | | |
atropine
tropan-3alpha-yl 3-hydroxy-2-phenylpropanoate : A tropane alkaloid that is (1R,5)-8-methyl-8-azabicyclo[3.2.1]octane substituted by a (3-hydroxy-2-phenylpropanoyl)oxy group at position 3. | 6.1 | 39 | 0 | | |
organophosphonates
hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.48 | 2 | 0 | divalent inorganic anion;
phosphite ion | |
methylphosphonothiolate
[no description available] | 2.05 | 1 | 0 | organothiophosphorus compound | |
3-nitrotyrosine
3-nitrotyrosine: RN given refers to parent cpd without isomeric designation. 3-nitrotyrosine : A nitrotyrosine comprising tyrosine having a nitro group at the 3-position on the phenyl ring. | 2.11 | 1 | 0 | 2-nitrophenols;
C-nitro compound;
nitrotyrosine;
non-proteinogenic alpha-amino acid | |
betadex
beta-Cyclodextrins: Cyclic GLUCANS consisting of seven (7) glucopyranose units linked by 1,4-glycosidic bonds. | 2.91 | 4 | 0 | cyclodextrin | |
alpha-cyclodextrin
alpha-cyclodextrin : A cycloamylose composed of six alpha-(1->4) linked D-glucopyranose units. | 1.97 | 1 | 0 | cyclodextrin | |
enkephalin, leucine
Enkephalin, Leucine: One of the endogenous pentapeptides with morphine-like activity. It differs from MET-ENKEPHALIN in the LEUCINE at position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN.. Leu-enkephalin : A pentapeptide comprising L-tyrosine, glycine, glycine, L-phenylalanine and L-leucine residues joined in sequence by peptide linkages. It is an endogenous opioid peptide produced in vertebrate species, including rodents, primates and humans that results from decomposition of proenkephalin or dynorphin and exhibits antinociceptive properties. | 1.96 | 1 | 0 | pentapeptide;
peptide zwitterion | analgesic;
delta-opioid receptor agonist;
human metabolite;
mu-opioid receptor agonist;
neurotransmitter;
rat metabolite |
potassium fluoride
potassium fluoride : A fluoride salt having K+ as the counterion. | 2.15 | 1 | 0 | fluoride salt;
potassium salt | NMR chemical shift reference compound;
poison |
physostigmine salicylate
[no description available] | 1.97 | 1 | 0 | azaheterocycle salicylate salt;
salicylates | |
n(6)-cyclopentyladenosine
[no description available] | 2.01 | 1 | 0 | | |
benztropine
Benztropine: A centrally active muscarinic antagonist that has been used in the symptomatic treatment of PARKINSON DISEASE. Benztropine also inhibits the uptake of dopamine.. benzatropine : Tropane in which a hydrogen at position 3 is substituted by a diphenylmethoxy group (endo-isomer). An acetylcholine receptor antagonist, it is used (particularly as its methanesulphonate salt) in the treatment of Parkinson's disease, and to reduce parkinsonism and akathisia side effects of antipsychotic treatments. | 1.97 | 1 | 0 | diarylmethane | |
thiourea
Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur. | 2.06 | 1 | 0 | one-carbon compound;
thioureas;
ureas | antioxidant;
chromophore |
buthalital
buthalital: structure | 1.94 | 1 | 0 | barbiturates | |
4-aminophenylphosphonic acid methyl-1,2,2-trimethylpropyl diester
[no description available] | 1.97 | 1 | 0 | | |
levetiracetam
Levetiracetam: A pyrrolidinone and acetamide derivative that is used primarily for the treatment of SEIZURES and some movement disorders, and as a nootropic agent.. levetiracetam : A pyrrolidinone and carboxamide that is N-methylpyrrolidin-2-one in which one of the methyl hydrogens is replaced by an aminocarbonyl group, while another is replaced by an ethyl group (the S enantiomer). An anticonvulsant, it is used for the treatment of epilepsy in both human and veterinary medicine. | 2.11 | 1 | 0 | pyrrolidin-2-ones | anticonvulsant;
environmental contaminant;
xenobiotic |
gamma-cyclodextrin
gamma-cyclodextrin : A cycloamylose composed of eight alpha-(1->4) linked D-glucopyranose units. | 1.97 | 1 | 0 | cyclodextrin | |
acetaldehyde oxime
acetaldehyde oxime: structure. (E)-acetaldehyde oxime : The (E)-stereoisomer of acetaldehyde oxime.. acetaldehyde oxime : An aldoxime derived from acetaldehyde. | 2.83 | 3 | 0 | acetaldehyde oxime | |
aluminum
Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.13 | 1 | 0 | boron group element atom;
elemental aluminium;
metal atom | |
arsenic
Arsenic: A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed) | 3.11 | 1 | 0 | metalloid atom;
pnictogen | micronutrient |
lewisite
lewisite: RN given refers to cpd without isomeric designation | 3.11 | 1 | 0 | | |
phosphorus
Phosphorus: A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. | 3.08 | 5 | 0 | monoatomic phosphorus;
nonmetal atom;
pnictogen | macronutrient |
tetrodotoxin
Tetrodotoxin: An aminoperhydroquinazoline poison found mainly in the liver and ovaries of fishes in the order TETRAODONTIFORMES, which are eaten. The toxin causes paresthesia and paralysis through interference with neuromuscular conduction.. tetrodotoxin : A quinazoline alkaloid that is a marine toxin isolated from fish such as puffer fish. It has been shown to exhibit potential neutotoxicity due to its ability to block voltage-gated sodium channels. | 1.96 | 1 | 0 | azatetracycloalkane;
oxatetracycloalkane;
quinazoline alkaloid | animal metabolite;
bacterial metabolite;
marine metabolite;
neurotoxin;
voltage-gated sodium channel blocker |
diacetylmonoxime
diacetylmonoxime: used diagnostically for determining urea in blood; structure; myosin ATPase antagonist. diacetylmonoxime : A ketoxime obtained via formal condensation of butane-2,3-dione with hydroxylamine. It is a reversible myosin ATPase inhibitor. | 1.97 | 1 | 0 | | |
tert-butyldimethylsilane
[no description available] | 2 | 1 | 0 | | |
4,4-difluoro-4-bora-3a,4a-diaza-s-indacene
[no description available] | 2.8 | 3 | 0 | BODIPY compound | |
nitrophenols
Nitrophenols: PHENOLS carrying nitro group substituents. | 2.42 | 2 | 0 | | |
cyclic gmp
Cyclic GMP: Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed). 3',5'-cyclic GMP : A 3',5'-cyclic purine nucleotide in which the purine nucleobase is specified as guanidine. | 1.96 | 1 | 0 | 3',5'-cyclic purine nucleotide;
guanyl ribonucleotide | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
pralidoxime
pralidoxime: RN given refers to parent cpd; chloride was minor descriptor (75-80); on-line & Index Medicus search PRALIDOXIME COMPOUNDS (66-80). pralidoxime : A pyridinium ion that is 1-methylpyridinium substituted by a (hydroxyimino)methyl group at position 2. | 5.55 | 22 | 0 | pyridinium ion | antidote to organophosphate poisoning;
antidote to sarin poisoning;
cholinergic drug;
cholinesterase reactivator |
hlo 7
HLo 7: structure given in first source | 8.7 | 10 | 0 | organic molecular entity | |
pyridine-2-aldoxime
pyridine-2-aldoxime: RN given refers to parent cpd | 2.17 | 1 | 0 | | |
asoxime chloride
[no description available] | 6.8 | 47 | 0 | | |
hgg 12
HGG 12: used therapeutically in organophosphate poisoning; structure; RN given refers to parent cpd | 2.65 | 3 | 0 | | |
n,n'-monomethylenebis(pyridiniumaldoxime)
N,N'-monomethylenebis(pyridiniumaldoxime): RN given refers to parent cpd | 4.52 | 7 | 0 | | |
hs 6
HS 6: structure | 2.17 | 1 | 0 | | |
trimedoxime bromide
Trimedoxime: Cholinesterase reactivator used as an antidote in alkyl phosphate poisoning. | 4.69 | 27 | 0 | | |