4-Ureidooxycyclophosphamide (cis)- 81732-70-9 Urea, ((2-(bis(2-chloroethyl)amino)tetrahydro-2-oxido-2H-1,3,2-oxazaphosphorin-4-yl)oxy)-, cis- Urea, ((2-(bis(2-chloroethyl)amino)tetrahydro-2H-1,3,2-oxazaphosphorin-4-yl)oxy)-, P-oxide, cis-