2,4-Dichloro-N-phenethyl-benzene-sulfonamide.

In the title compound, C(14)H(13)Cl(2)NO(2)S, the dihedral angle between the phenyl ring and the benzene ring is 69.94 (9)°. Two short intra-molecular C-H⋯O contacts occur and a weak inter-molecular C-H⋯π inter-action is seen in the crystal.

4-Bromo-3-{N-[2-(3,4-dimethoxy-phen-yl)eth-yl]-N-methyl-sulfamo-yl}-5-methyl-benzoic acid monohydrate.

In the title compound, C(19)H(22)BrNO(6)S·H(2)O, the dihedral angle between the planes of the two benzene rings is 3.1 (1)°. These rings are stacked over one another with their centroids separated by 3.769 (2) Å, indicating weak π-π inter-actions. In the crystal structure, mol-ecules are linked by O-H⋯O and O-H⋯(O,O) hydrogen bonds involving the water mol-ecule, forming a two-dimensional network parallel to (001).

N-(5-Bromo-2-chloro-benz-yl)-N-cyclo-propyl-naphthalene-2-sulfonamide.

In the title compound, C(20)H(17)BrClNO(2)S, the dihedral angle between the benzene ring and the naphthalene plane is 8.95 (8)°. The crystal packing is stabilized by weak inter-molecular C-H⋯O, C-H⋯Cl and π-π [centroid-centroid distance = 3.8782 (16) Å] inter-actions.