3,5-Di­chloro-N-(2,4-di­chloro­phen­yl)benzene­sulfonamide

The mol­ecule of the title compound, C12H7Cl4NO2S, is U-shaped, with the central C—S—N—C segment having a torsion angle of −58.7 (3)°. The dihedral angle between the benzene rings is 40.23 (2)°. Further, the ortho Cl atom on the aniline ring is syn to the N—H bond in the central –C—S(O2)—NH—C– segment. In the crystal, mol­ecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers that enclose R22(8) loops. These dimers are linked by C—H⋯O hydrogen bonds that form a double C(7) chain propagating along the b-axis direction. These chains are further consolidated by Cl⋯Cl halogen bonds [3.4331 (2) Å]. π–π contacts [centroid–centroid distance = 3.6574 (19) Å] between the aniline rings link adjacent chains into a three-dimensional supra­molecular network with mol­ecules stacked along the b-axis direction