20537-88-6 63717-27-1 Amifostina [INN-Spanish] Amifostine monohydrate Amifostinum [INN-Latin] Ethanethiol, 2-((3-aminopropyl)amino)-, dihydrogen phosphate (ester) hydrate Phosphorothioic acid, S-(2-((3-aminopropyl)amino)ethyl) ester, hydrate Phosphorothioic acid, S-ester with 2-((3-aminopropyl)amino)ethanethiol, hydrate