The title compound, C(17)H(13)N(3)O(2)S, was prepared by reaction of 4-(4-pyrid-yl)pyrimidine-2-thiol with 3-(bromo-meth-yl)benzoic acid under basic conditions. Each pair of mol-ecules is mutually linked via O-H⋯N hydrogen bonds, forming a dimer. The packing of the dimers is stablized by C-H⋯π inter-actions involving the methyl-ene unit of the -CH(2)S- linkage and benzene rings.