Crystal structure of (E)-3-(4-hy­droxy­benz­yl)-4-{[4-(methyl­sulfan­yl)benzyl­idene]amino}-1H-1,2,4-triazole-5(4H)-thione

In the title compound, C(17)H(16)N(4)OS(2), the triazole and methyl­thio­benzyl­idene rings are nearly coplanar, making a dihedral angle of 6.52 (12)°. An intra­molecular C—H⋯S hydrogen bond forms an S(6) ring motif. The hy­droxy­benzyl ring is almost normal to the triazole and methyl­thio­benzyl­idene rings, making dihedral angles of 78.56 (12) and 84.79 (11)°, respectively. In the crystal, mol­ecules are linked through O—H⋯N and N—H⋯O hydrogen bonds, forming layers parallel to the ac plane. The layers are linked via C—H⋯N hydrogen bonds, forming a three-dimensional structure. In addition, a short π–π inter­action is observed [inter-centroid distance = 3.764 (3) Å], involving inversion-related methyl­thio­benzyl­idene rings.