Substance | Relationship Strength | Studies | Trials | Classes | Roles |
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. | 2.42 | 2 | 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 |
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 3.36 | 1 | 1 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
spermine [no description available] | 2.43 | 2 | 0 | polyazaalkane; tetramine | antioxidant; fundamental metabolite; immunosuppressive agent |
deferoxamine Deferoxamine: Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form.. desferrioxamine B : An acyclic desferrioxamine that is butanedioic acid in which one of the carboxy groups undergoes formal condensation with the primary amino group of N-(5-aminopentyl)-N-hydroxyacetamide and the second carboxy group undergoes formal condensation with the hydroxyamino group of N(1)-(5-aminopentyl)-N(1)-hydroxy-N(4)-[5-(hydroxyamino)pentyl]butanediamide. It is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator. | 2 | 1 | 0 | acyclic desferrioxamine | bacterial metabolite; ferroptosis inhibitor; iron chelator; siderophore |
pentetic acid Pentetic Acid: An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium. | 2.07 | 1 | 0 | pentacarboxylic acid | copper chelator |
nitroglycerin Nitroglycerin: A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.. nitroglycerol : A nitrate ester that is glycerol in which nitro group(s) replace the hydrogen(s) attached to one or more of the hydroxy groups.. nitroglycerin : A nitroglycerol that is glycerol in which the hydrogen atoms of all three hydroxy groups are replaced by nitro groups. It acts as a prodrug, releasing nitric oxide to open blood vessels and so alleviate heart pain. | 4.47 | 5 | 1 | nitroglycerol | explosive; muscle relaxant; nitric oxide donor; prodrug; tocolytic agent; vasodilator agent; xenobiotic |
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. | 1.99 | 1 | 0 | non-proteinogenic alpha-amino acid; penicillamine | antirheumatic drug; chelator; copper chelator; drug allergen |
3-mercaptopropionic acid 3-Mercaptopropionic Acid: An inhibitor of glutamate decarboxylase. It decreases the GAMMA-AMINOBUTYRIC ACID concentration in the brain, thereby causing convulsions.. 3-mercaptopropanoic acid : A mercaptopropanoic acid that is propanoic acid carrying a sulfanyl group at position 3. | 2.07 | 1 | 0 | mercaptopropanoic acid | algal metabolite |
pentaerythritol tetranitrate Pentaerythritol Tetranitrate: A vasodilator with general properties similar to NITROGLYCERIN but with a more prolonged duration of action. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1025). pentaerythritol tetranitrate : A pentaerythritol nitrate in which all four hydroxy groups of pentaerythritol have been converted to the corresponding nitrate ester. It is a vasodilator with properties similar to those of glyceryl trinitrate, but with a more prolonged duration of action, and is used for treatment of angina pectoris. It is also one of the most powerful high explosives known and is a component of the plastic explosive known as Semtex. | 7.84 | 20 | 4 | pentaerythritol nitrate | explosive; vasodilator agent |
isosorbide dinitrate Isosorbide Dinitrate: A vasodilator used in the treatment of ANGINA PECTORIS. Its actions are similar to NITROGLYCERIN but with a slower onset of action. | 6.6 | 7 | 3 | glucitol derivative; nitrate ester | nitric oxide donor; vasodilator agent |
glycerol-1-nitrate mononitroglycerol: RN given refers to cpd with unspecified nitrate locant | 2.05 | 1 | 0 | | |
isosorbide-5-mononitrate isosorbide-5-mononitrate: for prevention of angina pectoris; structure given in first source; a Russian drug | 1.99 | 1 | 0 | glucitol derivative; nitrate ester | nitric oxide donor; vasodilator agent |
glycerol-2-nitrate [no description available] | 2.05 | 1 | 0 | | |
glyceryl 1,2-dinitrate dinitroglycerol : A nitroglycerol carrying two nitro groups at unspecified positions. | 2.05 | 1 | 0 | dinitroglycerol; primary alcohol | |
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). | 2.07 | 1 | 0 | nitrogen oxoacid | |
pentaerythritol mononitrate pentaerythritol mononitrate: ester of pentaerythritol | 2.7 | 3 | 0 | | |
hydroxyl radical Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent. | 2.07 | 1 | 0 | oxygen hydride; oxygen radical; reactive oxygen species | |
erythritol [no description available] | 2 | 1 | 0 | butane-1,2,3,4-tetrol | antioxidant; human metabolite; plant metabolite |
2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide: partial structure given in first source; endothelium-derived relaxing factor antagonist | 2 | 1 | 0 | | |
nadp [no description available] | 2.95 | 1 | 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. | 2.07 | 1 | 0 | organic sodium salt | detergent; protein denaturant |
bilirubin [no description available] | 2.42 | 2 | 0 | biladienes; dicarboxylic acid | antioxidant; human metabolite; mouse metabolite |
magnesium trisilicate magnesium trisilicate: RN given refers to parent cpd | 2.02 | 1 | 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. | 1.99 | 1 | 0 | cysteinium | fundamental metabolite |
s-nitroso-n-acetylpenicillamine S-Nitroso-N-Acetylpenicillamine: A sulfur-containing alkyl thionitrite that is one of the NITRIC OXIDE DONORS. | 2.01 | 1 | 0 | nitroso compound; nitrosothio compound | nitric oxide donor; vasodilator agent |
s-nitro-n-acetylpenicillamine S-nitro-N-acetylpenicillamine: a NO donor | 1.99 | 1 | 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. | 2 | 1 | 0 | 3',5'-cyclic purine nucleotide; guanyl ribonucleotide | Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
hypoxanthine [no description available] | 2.07 | 1 | 0 | nucleobase analogue; oxopurine; purine nucleobase | fundamental metabolite |