2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(bis(2-chloroethyl)amino)-4,4,6-trimethyl-, 2-oxide 70772-72-4 B 617 Tetrahydro-2-(bis(2-chloroethyl)amino)-4,4,6-trimethyl-2H-1,3,2-oxazaphosphorine 2-oxide