4-[(E)-(4-Hy­droxy­benzyl­idene)amino]-3-methyl-1H-1,2,4-triazole-5(4H)-thione

The title compound, C(10)H(10)N(4)OS, is nearly planar with the mean planes of the hy­droxy­benzyl and triazole rings inclined at an angle of only 3.2 (7)°. In the crystal, O—H⋯N hydrogen bonds between the hy­droxy group and the triazole ring in concert with weak N—H⋯S inter­molecular inter­actions between the triazole ring and thione group form chains along [-210] enclosing R (2) (2)(8) graph-set motifs. A weak intra­molecular C—H⋯S inter­action and inter­molecular π–π inter­actions [centroid–centroid distance = 3.5990 (15) Å] are also observed.