N,N′-Bis(phenyl­carbamo­thio­yl)benzene-1,3-dicarboxamide

The asymmetric unit of the title compound, C₂₂H₁₈N₄O₂S₂, contains two mol­ecules. In one of them, the dihedral angles between the central benzene ring and the phenyl rings are 16.97 (8) and 20.97 (8)°, while the phenyl rings make a dihedral angle of 37.87 (8)°. In the other mol­ecule, the corresponding values are 34.92 (7), 53.90 (7) and 60.68 (8)°, respectively. In each mol­ecule, two intra­molecular N—H...O hydrogen bonds generate S(6) rings and a short C—H...S contact also occurs. In the crystal, N—H...S, N—H...O, C—H...O and C—H...S inter­actions link the mol­ecules into a three-dimensional network.