2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-5,5,6-trimethyl-, 2-oxide 78149-79-8 B 693 Tetrahydro-2-(bis(2-chloroethyl)amino)-5,5,6-trimethyl-2H-1,3,2-oxazaphosphorine 2-oxide