135732-01-3 BRN 5367567 N,N-(beta-Chloroethyl-beta-cyanoethyl)amidophosphoryldibenzo-17-crown-6 Propanenitrile, 3-((2-chloroethyl)(6,7,9,10,12,13-hexahydrodibenzo(d,p)(1,3,6,9,12,15,2)hexaoxaphosphacycloheptadecin-20-yl)amino)-, P-oxide