title: 2,4-Dihydroxy-benzaldehyde 4-ethyl-thio-semicarbazone.
abstract: The mol-ecular conformation of the title compound, C(10)H(13)N(3)O(2)S, is stabilized by an intramolecular O-H⋯N hydrogen bond. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds to furnish a zigzag chain.
authors.forename: Kong Wai
authors.initials: KW
authors.lastname: Tan
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