4,4-Diphenyl-1-propyl-2-propyl­sulfanyl-4,5-di­hydro-1H-imidazol-5-one

In the title mol­ecule, C21H24N2OS, the five-membered ring is planar with an r.m.s. deviation of 0.0142 A. The phenyl rings are inclined to the plane of the di­hydro­imidazolone ring by 60.81 (6) and 79.23 (6)°. In the crystal, inversion dimers are formed by a C—H⋯O hydrogen bond and a C—H⋯π(ring) inter­action. Additional C—H⋯O hydrogen bonds and C—H⋯π(ring) inter­actions connect these dimers into chains along the c-axis direction.