N-Benzoyl-N',N''-dicyclo-hexyl-phospho-ric triamide.

In the title compound, C(19)H(30)N(3)O(2)P, the central P atom has a distorted tetra-hedral configuration. The N atoms in both cyclo-hexyl-amide moieties exhibit a slight deviation [0.32 (7) and 0.44 (6) Å] from planarity, while the benzoyl-amide N atom is planar [0.11 (3) Å]. In the crystal, mol-ecules are linked via N-H⋯O(P) and N-H⋯O(C) hydrogen bonds, forming R(2) (2)(10) rings within linear arrangements parallel to the b axis.