2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-4-((2-carboxyethyl)thio)-, 2-oxide 4-S-(Propionic acid)-sulfidocyclophosphamide 4-S-(Propionic acid)sulfidocyclophosphamide 70396-87-1 Propanoic acid, 3-((2-bis(2-chloroethyl)amino)tetrahydro-2H-1,3,2-oxazaphosphorin-4-yl)thio)-, P-oxide