title: 3,4-Dihydroxy-benzaldehyde 4-phenyl-thio-semicarbazone.
abstract: Mol-ecules of the title compound, C(14)H(13)N(3)O(2)S, are linked by inter-molecular O-H⋯O hydrogen bonds into centrosymmetric dimers forming R(2) (2)(4) rings which are further linked by O-H⋯S hydrogen bonds and weaker N-H⋯S and N-H⋯O hydrogen bonds to form a three-dimensional network.
authors.forename: Kong Wai
authors.initials: KW
authors.lastname: Tan
authors.forename: Yang
authors.initials: Y
authors.lastname: Farina
authors.forename: Chew Hee
authors.initials: CH
authors.lastname: Ng
authors.forename: Mohd Jamil
authors.initials: MJ
authors.lastname: Maah
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng