In the crystal structure of the title compound, C(18)H(12)N(2)OS, centrosymmetric dimers are stabilized both by van der Waals inter-actions and by two types of inter-molecular O-H⋯N hydrogen bonds. In addition, an intra-molecular C-H⋯S hydrogen bond is observed. The dihedral angles between the central ring and the two pendant phenyl rings are 7.4 (1) and 45.06 (9)°.