4-{[4-(Dimethylamino)benzylidene]-aminolbenzenesulfonamide

The title Schiff base compound, C15H17N3O2S, is non -planar with a dihedral angle of 69.88 (4)degrees between the planes of the benzene rings. In the crystal, pairs of N-H center dot center dot center dot N hydrogen bonds, between the sulfonamide nitrogen-H atom and the azomethine N atom, link the molecules into inversion dimers, forming R-2(2)(16)degrees ring motifs. These dimers are linked by NH center dot center dot center dot O hydrogen bonds, between the sulfonamide nitrogen-H atom and one sulfonamide O atom, forming sheets lying parallel to (100). Within the sheets there are weak parallel slipped pi-pi interactions involving inversion-related benzene sulfonamide rings [centroid-centroid distance = 3.8800 (9) angstrom; normal distance = 3.4796 (6) angstrom; slippage = 1.717 angstrom].