Abstract
In the title compound, C(15)H(14)O(2)S, the dihedral angle between the aromatic rings is 8.46 -(8)degrees. The central enone group is planar (r.m.s. deviation = 0.0267 angstrom) and is oriented at a dihedral angle of 1.20 (9)degrees with respect to the benzene ring and at 8.27 (9)degrees with respect to the thiophene group. In the crystal, the molecules are linked into polymeric chains extending along the b axis due to intermolecular O-H center dot center dot center dot O hydrogen bonding. An S(6) ring motif is formed due to a short intramolecular C-H center dot center dot center dot O contact. C-H center dot center dot center dot pi interactions involving a methyl group of the 2,5-dimethylthienyl group and the benzene ring are present. pi-pi interactions between the centroids of the benzene and heterocyclic rings [3.7691 (9) angstrom] also occur.