Received 27 November 2012
In the title compound, C12H9ClN2O4S, the dihedral angle between the benzene rings is 31.4 (2)°. In the crystal, N-HO hydrogen bonds link the molecules into C(4) chains running along the a-axis direction.
For our studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Gowda & Weiss (1994), of N-arylsulfonamides, see: Chaithanya et al. (2012); Gowda et al. (2003) and of N-chloroarylsulfonamides, see: Gowda et al. (2005); Shetty & Gowda (2004).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell refinement: CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT6873 ).
UC thanks Mangalore University for the award of a research fellowship. BTG thanks the University Grants Commission, Government of India, New Delhi, for a special grant under the UGC-BSR one-time grant to faculty.
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