2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-3-benzyl-6-methyl-, 2-oxide 78219-92-8 B 799 Tetrahydro-2-(bis(2-chloroethyl)amino)-3-benzyl-6-methyl-2H-1,3,2-oxazaphosphorine 2-oxide