In the title mol-ecule, C(23)H(19)ClN(4)OS, the 1,2,4-triazole ring forms dihedral angles of 46.5 (2), 87.4 (2) and 80.9 (2) Å with the three six-membered rings. Weak inter-molecular N-H⋯S and C-H⋯O hydrogen bonds consolidate the crystal packing.