2-Amino-3-nitrobenzoic acid

Abstract

The title compound, C7H6N2O4, is approximately planar (r.m.s. deviation = 0.026 Å for the 13 non-H atoms). The molecular structure is stabilized by intramolecular N—H...O hydrogen bonds, which generate S(6) ring motifs. In the crystal, molecules are linked via intermolecular N—H...O, O—H...O and C—H...O hydrogen bonds into a three-dimensional network.