N,N-Bis(diphenyl­thio­phosphino­yl)-4-ethyl­aniline

The title compound, C₃₂H₂₉NP₂S₂, has two mol­ecules in the asymmetric unit, with an r.m.s. difference of 0.218 Å in their best-fit overlay. Both mol­ecules have a slightly distorted trigonal–planar N atom, bonded to two P^V atoms and a C atom of the 4-ethyl­phenyl unit. The P—N—P angles of 126.34 (11) and 125.98 (11)° are larger than the four C—N—P bond angles. The two S atoms are trans to one another with respect to the P—N—P angle. The crystal structure features C—H...π inter­actions. The methyl group in one of the mol­ecules is disordered over two sets of sites, with occupancies of 0.518 (6) and 0.482 (6).