(+-)-cis-2-(Bis(2-chloroethyl)amino)-4-methyltetrahydro-2H-1,3,2-oxazaphosphorine 2-oxide (+-)-cis-4-Methylcyclophosphamide 2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-4-methyl-, 2-oxide, (+-)-cis- 57604-36-1