4-Ureidooxycyclophosphamide 81732-69-6 Urea, ((2-(bis(2-chloroethyl)amino)tetrahydro-2-oxido-2H-1,3,2-oxazaphosphorin-4-yl)oxy)- Urea, ((2-(bis(2-chloroethyl)amino)tetrahydro-2H-1,3,2-oxazaphosphorin-4-yl)oxy)-, P-oxide