N-[4-(4-Chlorobenzenesulfonamido)-phenylsulfonyl]acetamide

In the title compound, C₁₄H₁₃ClN₂O ₅S₂, the dihedral angles between the central benzene ring and the pendant chlorobenzene ring and the N-acetyl group are 82.35 (5) and 79.71 (6)°, respectively, and the overall conformation of the molecule approximates to a U shape. Both the C - S - N - C conformations are gauche, but with opposite senses [torsion angles = -59.29 (15) and 63.68 (16)°]. An intramolecular C - H⋯O interaction generates an S(6) ring. In the crystal, inversion dimers linked by pairs of N - H⋯O hydrogen bonds generate R₂ ²(20) loops. A second N - H⋯O hydrogen bond links the dimers into (101) layers.