N-(3,5-Dimethyl­phen­yl)-2-nitro­benzene­sulfonamide

The asymmetric unit of the title compound, C(14)H(14)N(2)O(4)S, consists of two crystallographically independent mol­ecules. The mol­ecules are twisted at the S—N bonds with C—S—N—C torsion angles of 44.2 (3) and −49.3 (3)°. The dihedral angles between the benzene rings in the two mol­ecules are 71.53 (7) and 72.11 (7)°. The amide H atoms exhibit bifurcated intra- and inter­molecular hydrogen bonds; the intra­molecular N—H⋯O(N) hydrogen bonds generate S(7) motifs. In the crystal, the independent mol­ecules are separately connected through the inter­molecular N—H⋯O(S) hydrogen bonds, generating a C(4) motif and a helical chain along the b axis for one mol­ecule and an R (2) (2)(8) motif and an inversion dimer for the other. The crystal studied was a pseudo-merohedral twin with twin law (-100/0-10/001), the refined ratio of the twin domains being 0.7876 (12):0.2124 (12).