4-(4-Chlorobenzylideneamino)-3-(1 H -1,2,4-triazol-1-ylmethyl)-1 H -1,2,4-triazole-5(4 H )-thione

In the title compound, C12H10ClN7S, the dihedral angles made by the plane of the thione-substituted triazole ring with the planes of the other triazole ring and the benzene ring are 73.57 (3) and 46.65 (2)°, respectively. Inter- and intra­molcular hydrogen bonds and π-π stacking inter­actions stabilize the structure.