2H-1,3,2-Oxazaphosphorine, tetrahydro-2-(N-(2-chlorobutyl)-N-(2-chloroethyl)amino)-, 2-oxide 78149-81-2 B 734 Tetrahydro-2-(N-(2-chlorobutyl)-N-(2-chloroethyl)amino)-2H-1,3,2-oxazaphosphorine 2-oxide