5,6‐Di­phenyl­thieno­[2,3‐d][1,3]dithiole‐2‐thione

The title compound, C₁₇H₁₀S₄, has two independent mol­ecules in the asymmetric unit. In both mol­ecules, the fused heterocycle is almost planar and the phenyl groups make dihedral angles of 42.88 (9) and 52.79 (8)° with the fused heterocycle in one mol­ecule, and angles of 40.62 (9) and 52.28 (8)° in the other. The crystal packing is governed by short intermolecular S?S interactions, the shortest contact being 3.333 (1) Å.