In the title compound, C12H14N2O2S2, the di-hydro-pyrimidine ring adopts a sofa conformation, with the C atom bearing the thienyl ring lying above the plane of the five remaining approximately coplanar (r.m.s. deviation = 0.0405 Å) atoms of the ring. The dihedral angle between the five near coplanar atoms of the ring and the thienyl ring is 89.78 (11)°. In the crystal, mol-ecules are linked into a supra-molecular chain along [100] via N-H⋯O(carbon-yl) hydrogen bonds. Inversion-related chains are linked into double chains via N-H⋯S(thione) hydrogen bonds. The three-dimensional architecture also features meth-yl-thienyl C-H⋯π inter-actions.
Keywords: C—H⋯π interactions; conformation; crystal structure; hydrogen bonding; pyrimidine.