Crystal structure of (Z)-3-allyl-5-(4-chloro­benzyl­idene)-2-sulfanyl­idene-1,3-thia­zolidin-4-one

In the title compound, C(13)H(10)ClNOS(2), the dihedral angle between the rhodanine (r.m.s. deviation = 0.008 Å) and 4-chloro­benzyl­idene rings is 1.79 (11)°. The allyl group attached to the N atom, which lies almost perpendicular to the rhodanine ring, is disordered over two orientations in a 0.519 (13):0.481 (13) ratio. A short intra­molecular C—H⋯S inter­action closes an S(6) ring. In the crystal, mol­ecules are linked by π–π stacking inter­actions [centroid–centroid separation = 3.600 (15) Å], generating inversion dimers.