organic compounds
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In the title compound, C14H12N2O5S, the dihedral angle between the aromatic rings is 86.29 (1)° and the conformation between the C=O bond of the amide group and the meta-NO2 group is syn. The C—S—N—C torsion angle is −65.87 (19)° and the molecule has an L-shaped conformation. In the crystal, the molecules are connected into inversion dimers through pairs of N—HO hydrogen bonds and C—HO interactions forming R22(8) and R22(14) loops, respectively. The dimers are connected by further C—HO interactions, thereby forming (100) sheets.