In the title mol-ecule, C(18)H(21)ClF(2)N(3)O(2)P, the P=O and N-H groups are syn to each other. The P atom adopts a slightly distorted tetra-hedral environment and the N atoms of the tertiary amine groups are bonded in an essentially planar geometry. In the crystal, pairs of inter-molecular N-H⋯O(P) hydrogen bonds form centrosymmetric dimers.