The molecule of the here title heteroaryl chalcone derivative, C13H11NOS, exists in a trans-configuaration and is almost planar with a dihedral angle of 3.73 (8)° between the phenyl and thiophene rings.An intramolecular N—H.O hydrogen bond generates an S(6) ring motif.In the crystal, two adjacent molecules are linked into a dimer in an anti-parallel face-to-face manner by a pair of C—H.
O interactions.Neighboring dimers are further here linked into chains along the c-axis direction by N—H.N hydrogen bonds.