2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-3,4,4,6-tetramethyl-, 2-oxide 78149-87-8 B 692 Tetrahydro-2-(bis(2-chloroethyl)amino)-3,4,4,6-tetramethyl-2H-1,3,2-oxazaphosphorine 2-oxide