Acta Cryst. (2013). E69, o355
[ doi:10.1107/S1600536813003310 ]
Abstract: In the title molecule, C13H11N3O6S, the dihedral angle between the benzene rings is 35.52 (8)°. An intramolecular N-HO hydrogen bond forms an S(6) ring. In the crystal, molecules are linked via N-HO hydrogen bonds into chains along  incorporating R22(8) and R22(16) rings.
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