2-Hydroxy­imino-1-phenyl­ethanone thio­semicarbazone monohydrate

In the title thio­semicarbazone derivative, C(9)H(10)N(4)OS·H(2)O, intra­molecular N—H⋯N hydrogen bonds result in the formation of two nearly coplanar five- and six-membered rings, which are also almost coplanar with the adjacent phenyl ring. The oxime group has an E configuration and is involved in inter­molecular O—H⋯O hydrogen bonding as a donor. In the crystal structure, intra­molecular O—H⋯S and N—H⋯N and inter­molecular O—H⋯O and N—H⋯S hydrogen bonds generate edge-fused R (2) (2)(8) and R (4) (1)(11) ring motifs. The hydrogen-bonded motifs are linked to each other to form a three-dimensional supra­molecular network.