In the title compound, C(22)H(23)NO(4)S(2), the dihedral angles between the dimethyl-phenyl ring and the two methyl-phenyl rings are 41.19 (15) and 20.50 (17)°; the dihedral angle between the methyl-phenyl rings is 48.11 (14)°. The C-N-S-C torsion angles are -87.6 (2) and 77.43 (18)°. The only possible directional inter-actions in the crystal are very weak C-H⋯π inter-actions and very weak π-π stacking between parallel methyl-phenyl rings [centroid-to-centroid separation = 4.010 (2) Å and slippage = 1.987 Å].