In the title mol-ecule, C(25)H(21)ClN(4)OS, the triazole ring forms dihedral angles of 47.9 (2), 84.5 (2) and 3.9 (2)° with the two phenyl rings and the chloro-phenyl ring, respectively. The chloro-phenyl ring, the triazole ring and the conjugative linker between the two aromatic rings are nearly coplanar with an r.m.s. deviation of 0.0483 (2) Å and a maximum deviation of 0.0911 (2) Å.