4-[5-(4-Chlorophenyl)-3-methyl-1H-pyrazol-1-yl]benzenesulfonamide

In the title compound, C16H14ClN3O2S, the dihedral angle between the benzene and pyrazole rings is 52.75 (2)degrees, while that between the pyrazole and 4-chlorophenyl rings is 54.0 (3)degrees. The terminal sulfonamide group adopts an approximately tetrahedral geometry about the S atom with a C - S - N angle of 108.33 (10)degrees. In the crystal, pairs of N-H center dot center dot center dot N hydrogen bonds lead to the formation of inversion dimers. These dimers are linked via a second pair of N-H center dot center dot center dot N hydrogen bonds and C-H center dot center dot center dot O interactions, forming a two-dimensional network lying parallel to the bc plane. The two-dimensional networks are linked via C-H center dot center dot center dot Cl interactions, forming a three-dimensional structure.