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Amifostine

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The trihydrate form of a phosphorylated aminosulfhydryl compound. After dephosphorylation of amifostine by alkaline phosphatase to an active free sulfhydryl (thiol) metabolite, the thiol metabolite binds to and detoxifies cytotoxic platinum-containing metabolites of cisplatin and scavenges free radicals induced by cisplatin and ionizing radiation. The elevated activity of this agent in normal tissues results from both the relative abundance of alkaline phosphatase in normal tissues and the greater vascularity of normal tissues compared to tumor tissues.
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Synonym:amifostine trihydrate
aminopropylaminoethylthiophosphoric acid trihydrate
ethiofos
gammaphos
US brand name:Ethyol
Foreign brand name:Cytofos
Abbreviation:APAETP
Code name:WR 2721
WR-2721
WR2721
YM-08310
Chemical structure:2-[(3-aminopropyl)amino]ethanethiol dihydrogen phosphate ester trihydrate
S-(N-(3-aminopropyl)-2-aminoethyl)thiophosphoric acid trihydrate
S-2-(3-aminopropylamino)ethylphosphorothioic acid trihydrate
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