(2E)-1-(2,4-Dimethyl­quinolin-3-yl)-3-(thio­phen-2-yl)prop-2-en-1-one

Two independent but virtually identical mol­ecules comprise the asymmetric unit in the title compound, C(18)H(15)NOS. With reference to the quinolin-3-yl group, the 3-(thio­phen-2-yl)prop-2-en-1-one residue is almost perpendicular, with all but the carbonyl O atom lying to one side of the plane. This conformation is reflected by the C—C—C—C torsion angles of −102.2 (3) and 81.1 (3)° in the two independent mol­ecules. The dihedral angle formed between the 13 non-H atoms directly associated with the quinolin-3-yl group and the thio­phen-2-yl ring is 87.70 (11)° [83.85 (10)° for the second independent mol­ecule]. The presence of C—H⋯O, C—H⋯N and π–π inter­actions [centroid–centroid distance = 3.5590 (12) Å] lead to supra­molecular chains along the c-axis direction. These are connected along the a-axis direction by C—H⋯π inter­actions. The resultant supra­molecular layers stack along the b axis.