title: 6-Methyl-3-phenyl-2-sulfanyl-idene-1,2,3,4-tetra-hydro-quinazolin-4-one.
abstract: The title compound, C(15)H(12)N(2)OS, exists as the thione tautomer in the solid state. The phenyl group is almost perpendicular [dihedral angle = 87.96 (5)°] to the fused ring system (r.m.s. deviation = 0.036 Å for 13 ring and exocyclic non-H atoms). In the crystal, centrosymmetric dimers, sustained by pairs of N-H⋯S hydrogen bonds, are connected into layers parallel to (-101) by C-H⋯O and C-H⋯S inter-actions.
authors.forename: Adel S
authors.initials: AS
authors.lastname: El-Azab
authors.forename: Alaa A-M
authors.initials: AA
authors.lastname: Abdel-Aziz
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink