4-Methyl-N-[(Z)-3-(4-methyl-phen-ylsulfon-yl)-1,3-thia-zolidin-2-yl-idene]benzene-sulfonamide.

In the crystal structure of the title compound, C(17)H(18)N(2)O(4)S(3), mol-ecules are connected into centrosymmetric dimers via weak inter-molecular C-H⋯π inter-actions. These dimers are further connected through a series of weak C-H⋯O hydrogen bonds, while futher C-H⋯π inter-actions involving the phenyl and thia-zoline rings are also observed. The thia-zolidine ring is twisted from the benzene rings rings by dihedral angles of 79.1 (1) and 85.0 (1)°, while the dihedral angle between two benzene rings is 76.0 (1)°.