Synonyms : Cistafos, Cistaphos, Cystafos, Phosphocysteamine, WR-638, beta-Aminoethylthiophosphate, Sodium Salt, Salt beta-Aminoethylthiophosphate, Sodium, Sodium Salt beta-Aminoethylthiophosphate, WR 638, WR638, beta Aminoethylthiophosphate, Sodium Salt