Acta Cryst. (2013). E69, o1215 [ doi:10.1107/S1600536813018291 ]
Abstract: In the title compound, C14H12ClNO4S, the dihedral angle between the chloro- and methoxy-substituted benzene rings is 87.40 (1)°. In the crystal, adjacent molecules form inversion-related dimers through strong N-HO hydrogen bonds, generating R22(8) loops. The dimers are further connected through two C-HO interactions that form C(11) chains and R22(14) loops. Aromatic - stacking interactions [centroid-centroid separation = 3.8574 (1) Å] are also observed.
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