The structure of the title compound, C(14)H(15)NO(2)S, shows the sulfonamide N atom to be approximately perpendicular to the plane through the S-bound benzene ring [the N-S-C-C torsion angle is -87.4 (3)°] and to lie to the opposide side of this ring to the two sulfonamide O atoms. The N-bound benzene ring is splayed out with respect to the rest of the mol-ecule so that overall, the mol-ecule adopts a twisted conformation. The dihedral angle between the two benzene rings is 64.5 (3)°. In the crystal, supra-molecular chains aligned along the b axis are formed via N-H⋯O hydrogen bonds.