Date Published: July 01, 2011
Publisher: International Union of Crystallography
Author(s): Islam Ullah Khan, Ghulam Mustafa, Mehmet Akkurt.
The asymmetric unit of the title compound, C14H13NO5S, contains two independent molecules in which the dihedral angles between the aromatic rings are 83.45 (11) and 86.65 (9)°. In the crystal, the independent molecules are connected by N—H⋯O and O—H⋯O hydrogen bonds, forming a double-chain structure along . A weak π–π stacking interaction with a centroid–centroid distance of 3.7509 (13) Å and C—H⋯O hydrogen bonds are also observed.
For background to the biological activity of sulfonamides, see: Hanson et al. (1999 ▶). For related structures, see: Mustafa et al. (2010 ▶, 2011 ▶). For bond-length data, see: Allen et al. (1987 ▶).