N,N'-Bis(2-chloro-benz-yl)-N''-(dichloro-acet-yl)phospho-ric Triamide.

In the title compound, C16H16Cl4N3O2P, the phosphoryl and carbonyl groups are anti to each other. The dihedral angle between the benzene rings is 33.59 (16)degrees. In the crystal, adjacent molecules are linked via N-H center dot center dot center dot O=P and N-H center dot center dot center dot O-C hydrogen bonds, into an extended chain running parallel to the a axis.