N,N′-Bis(4-chloro­phenyl­sulfon­yl)suberamide

The asymmetric unit of the title compound, C(20)H(22)Cl(2)N(2)O(6)S(2), contains one half-mol­ecule with a center of symmetry at the mid-point of the central C—C bond. The conformations of all the N—H, C=O and C—H bonds in the central amide and aliphatic segments are anti to their adjacent bonds. The mol­ecule is bent at the S atom with a C—SO(2)—NH—C(O) torsion angle of −80.6 (4)°. The dihedral angle between the benzene ring and the SO(2)—NH—C(O)—CH(2)—CH(2)—CH(2) segment is 79.5 (2)°. In the crystal, inter­molecular N—H⋯O(C) and N—H⋯O(S) hydrogen bonds link the mol­ecules into chains along the b axis.