Synonyms: 4,4'-Peroxybis[2-[bis(2-chloroethyl)amino]tetrahydro-2H-1,3,2-oxazaphosphorine];2H-1,3,2-Oxazaphosphorine, 4,4'-dioxybis(2-(bis(2-chloroethyl)amino)tetrahydro-, 2,2'-dioxide;4,4'-Dioxybis(2-(bis(2-chloroethyl)aminotetrahydro-2H-1,3,2-oxazaphosphorine));4-Hydroxycyclophosphamide anhydro-dimer;Nsc 176986