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. | 2.05 | 1 | 0 | gas molecular entity;
hydracid;
mononuclear parent hydride;
sulfur hydride | Escherichia coli metabolite;
genotoxin;
metabolite;
signalling molecule;
toxin;
vasodilator agent |
niacinamide
nicotinamide : A pyridinecarboxamide that is pyridine in which the hydrogen at position 3 is replaced by a carboxamide group. | 1.99 | 1 | 0 | pyridine alkaloid;
pyridinecarboxamide;
vitamin B3 | anti-inflammatory agent;
antioxidant;
cofactor;
EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
Escherichia coli metabolite;
geroprotector;
human urinary metabolite;
metabolite;
mouse metabolite;
neuroprotective agent;
Saccharomyces cerevisiae metabolite;
Sir2 inhibitor |
nitrites
Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed) | 1.98 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | human metabolite |
molsidomine
Molsidomine: A morpholinyl sydnone imine ethyl ester, having a nitrogen in place of the keto oxygen. It acts as NITRIC OXIDE DONORS and is a vasodilator that has been used in ANGINA PECTORIS.. molsidomine : A member of the class of oxadiazoles that is 1,2,3-oxadiazole substituted by morpholin-4-yl and (ethoxycarbonyl)azanidyl groups at positions 3 and 5, respectively. It is used as a vasodilator drug for the treatment of myocardial ischemic syndrome and congestive heart failure. | 1.99 | 1 | 0 | ethyl ester;
morpholines;
oxadiazole;
zwitterion | antioxidant;
apoptosis inhibitor;
cardioprotective agent;
nitric oxide donor;
vasodilator agent |
pd 98059
2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one: inhibits MAP kinase kinase (MEK) activity, p42 MAPK and p44 MAPK; structure in first source. 2-(2-amino-3-methoxyphenyl)chromen-4-one : A member of the class of monomethoxyflavones that is 3'-methoxyflavone bearing an additional amino substituent at position 2'. | 2 | 1 | 0 | aromatic amine;
monomethoxyflavone | EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor;
geroprotector |
potassium chloride
Potassium Chloride: A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.. potassium chloride : A metal chloride salt with a K(+) counterion. | 1.98 | 1 | 0 | inorganic chloride;
inorganic potassium salt;
potassium salt | fertilizer |
linsidomine
linsidomine: RN given refers to parent cpd; structure | 1.99 | 1 | 0 | morpholines | |
sulpiride
Sulpiride: A dopamine D2-receptor antagonist. It has been used therapeutically as an antidepressant, antipsychotic, and as a digestive aid. (From Merck Index, 11th ed). sulpiride : A member of the class of benzamides obtained from formal condensation between the carboxy group of 2-methoxy-5-sulfamoylbenzoic acid and the primary amino group of (1-ethylpyrrolidin-2-yl)methylamine. | 1.98 | 1 | 0 | benzamides;
N-alkylpyrrolidine;
sulfonamide | antidepressant;
antiemetic;
antipsychotic agent;
dopaminergic antagonist |
carbachol
Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS. | 2.38 | 2 | 0 | ammonium salt;
carbamate ester | cardiotonic drug;
miotic;
muscarinic agonist;
nicotinic acetylcholine receptor agonist;
non-narcotic analgesic |
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. | 1.98 | 1 | 0 | non-proteinogenic alpha-amino acid;
penicillamine | antirheumatic drug;
chelator;
copper chelator;
drug allergen |
egtazic acid
Egtazic Acid: A chelating agent relatively more specific for calcium and less toxic than EDETIC ACID.. ethylene glycol bis(2-aminoethyl)tetraacetic acid : A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively. | 1.99 | 1 | 0 | diether;
tertiary amino compound;
tetracarboxylic acid | chelator |
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. | 1.98 | 1 | 0 | arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
erbium
Erbium: Erbium. An element of the rare earth family of metals. It has the atomic symbol Er, atomic number 68, and atomic weight 167.26. | 2.07 | 1 | 0 | f-block element atom;
lanthanoid atom | |
ytterbium
Ytterbium: An element of the rare earth family of metals. It has the atomic symbol Yb, atomic number 70, and atomic weight 173. Ytterbium has been used in lasers and as a portable x-ray source. | 2.07 | 1 | 0 | f-block element atom;
lanthanoid atom | |
yttrium
Yttrium: An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers. | 2.07 | 1 | 0 | d-block element atom;
rare earth metal atom;
scandium group element atom | |
fluorides
[no description available] | 2.07 | 1 | 0 | halide anion;
monoatomic fluorine | |
monomethyl succinate
monomethyl succinate: RN given refers to parent cpd. monomethyl succinate : A dicarboxylic acid monoester that is succinic acid in which one of the carboxy groups has been converted to its methyl ester. | 1.99 | 1 | 0 | dicarboxylic acid monoester;
hemisuccinate | |
s-nitrosoglutathione
[no description available] | 1.99 | 1 | 0 | glutathione derivative;
nitrosothio compound | bronchodilator agent;
nitric oxide donor;
platelet aggregation inhibitor;
signalling molecule |
peroxynitrous acid
Peroxynitrous Acid: A potent oxidant synthesized by the cell during its normal metabolism. Peroxynitrite is formed from the reaction of two free radicals, NITRIC OXIDE and the superoxide anion (SUPEROXIDES). | 2.17 | 1 | 0 | nitrogen oxoacid | |
roussin's red salt
[no description available] | 1.99 | 1 | 0 | | |
nitroarginine
Nitroarginine: An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6). N(gamma)-nitro-L-arginine : An L-arginine derivative that is L-arginine in which the terminal nitrogen of the guanidyl group is replaced by a nitro group. | 1.98 | 1 | 0 | guanidines;
L-arginine derivative;
N-nitro compound;
non-proteinogenic L-alpha-amino acid | |
1,2-bis(2-aminophenoxy)ethane n,n,n',n'-tetraacetic acid acetoxymethyl ester
[no description available] | 1.99 | 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. | 7.44 | 2 | 0 | chalcogen;
nonmetal atom | macronutrient |
s-nitroso-n-acetylpenicillamine
S-Nitroso-N-Acetylpenicillamine: A sulfur-containing alkyl thionitrite that is one of the NITRIC OXIDE DONORS. | 1.98 | 1 | 0 | nitroso compound;
nitrosothio compound | nitric oxide donor;
vasodilator agent |
sq-23377
Ionomycin: A divalent calcium ionophore that is widely used as a tool to investigate the role of intracellular calcium in cellular processes.. ionomycin : A very long-chain fatty acid that is docosa-10,16-dienoic acid which is substituted by methyl groups at positions 4, 6, 8, 12, 14, 18 and 20, by hydroxy groups at positions 11, 19 and 21, and by a (2',5-dimethyloctahydro-2,2'-bifuran-5-yl)ethanol group at position 21. An ionophore produced by Streptomyces conglobatus, it is used in research to raise the intracellular level of Ca(2+) and as a research tool to understand Ca(2+) transport across biological membranes. | 1.99 | 1 | 0 | cyclic ether;
enol;
polyunsaturated fatty acid;
very long-chain fatty acid | calcium ionophore;
metabolite |
sodium nitrite
Sodium Nitrite: Nitrous acid sodium salt. Used in many industrial processes, in meat curing, coloring, and preserving, and as a reagent in ANALYTICAL CHEMISTRY TECHNIQUES. It is used therapeutically as an antidote in cyanide poisoning. The compound is toxic and mutagenic and will react in vivo with secondary or tertiary amines thereby producing highly carcinogenic nitrosamines.. sodium nitrite : An inorganic sodium salt having nitrite as the counterion. Used as a food preservative and antidote to cyanide poisoning. | 7.4 | 2 | 0 | inorganic sodium salt;
nitrite salt | antidote to cyanide poisoning;
antihypertensive agent;
antimicrobial food preservative;
food antioxidant;
poison |
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. | 2 | 1 | 0 | 3',5'-cyclic purine nucleotide;
guanyl ribonucleotide | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
zaprinast
zaprinast: anaphylaxis inhibitor; structure | 1.99 | 1 | 0 | triazolopyrimidines | |