In the title compound, C(19)H(17)ClN(4)O(2)S, the dihedral angle between the pyrazole and phenyl rings is 43.3 (3)°. The bridging unit between the pyrazole and methoxyphenyl rings is planar within 0.0169 Å and makes dihedral angles of 2.3 and 26.4°, respectively, with these two rings. This conformation is influenced by intramolecular N-H⋯O and N-H⋯Cl hydrogen bonds. The crystal packing is stabilized by C-H⋯π inter-actions.