N-Benzyl-P-(2-ethyl-phen-yl)-P-phenyl-phosphinic amide.

In the crystal structure of the title compound, C(21)H(22)NOP, the amine H atom is involved in N-H⋯O hydrogen-bonding inter-actions, resulting in chains along the c axis. The crystal lattice is consolidated by weak inter-molecular C-H⋯π inter-actions.