Acta Cryst. (2013). E69, o388 [ doi:10.1107/S1600536813004029 ]
Abstract: In the title compound, C12H11NO4, the dihedral angle between the benzene and isoxazole rings is 42.52 (8)°. The carboxylic acid group is close to being coplanar with the isoxazole ring [dihedral angle = 5.3 (2)°]. In the crystal, inversion dimers linked by pairs of O-HO hydrogen bonds generate R22(8) loops.
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