Crystal structure and Hirshfeld surface analysis of 3-methyl-4-oxo-N-phenyl-3,4-di-hydro-quinazoline-2-carbo-thio-amide.

The asymmetric unit of the title compound, C(16)H(13)N(3)OS, comprises two mol-ecules (A and B) with similar conformations that differ mainly in the orientation of the phenyl group relative to the rest of the mol-ecule, as expressed by the C(thio-amide)-N(thio-amide)-C(phen-yl)-C(phen-yl) torsion angle of 49.3†(3)° for mol-ecule A and of 5.4†(3)° for mol-ecule B. In the crystal, two inter-molecular N-H⋯N hydrogen bonds lead to the formation of a dimer with R (2) (2)(10) graph-set notation. A Hirshfeld surface analysis revealed that H⋯H inter-actions are the most important inter-molecular inter-actions, contributing 40.9% to the Hirshfeld surface.