Acta Cryst. (2013). E69, o1073 [ doi:10.1107/S1600536813015481 ]
Abstract: In the title compound, C12H10N4O2, the dihedral angle between the aromatic rings is 43.18 (16)°. The nitro group is rotated from its attached ring by 7.8 (2)° and a short intramolecular N-HN contact occurs. In the crystal, the molecules are linked by N-HN and C-HO hydrogen bonds, generating a three-dimensional network.
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