Acta Cryst. (2012). E68, o213 [ doi:10.1107/S1600536811053529 ]
Abstract: In the title compound, C13H10N2O4, the nitro N atom deviates by 0.031 (2) Å from the plane of the benzene ring to which it is attached. The aromatic rings are oriented at a dihedral angle of 50.6 (1)°. An intramolecular N-HO hydrogen bond occurs. In the crystal, inversion dimers are formed by pairs of O-HO interactions.
Online 21 December 2011
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