Crystal structure of 4-hy-droxy-3-meth-oxy-benzaldehyde 4-methyl-thio-semi-carbazone methanol monosolvate.

In the title solvate, C15H15N3O2S·CH3OH, the thio-semicarbazone mol-ecule is approximately planar; the maximum deviation from the mean plane is 0.4659 (14) Å and the dihedral angle between the aromatic rings is 9.83 (8)°. This conformation is supported by an intra-molecular N-H⋯N hydrogen bond. In the crystal, the thio-semicarbazone mol-ecules are linked into dimers by pairs of N-H⋯S hydrogen bonds, thereby generating R 2 (2)(8) loops. The methanol solvent mol-ecule bonds to the thio-semicarbazone mol-ecule through a bifurcated O-H⋯(O,O) hydrogen bond and also accepts an O-H⋯O link from the thio-semicarbazone mol-ecule. Together, these links generate a three-dimensional network.