2-Amino-4-nitrophenol monohydrate

Abstract

The title compound, C6H6N2O3·H2O, crystallizes with two formula units in the asymmetric unit. The molecules are essentially planar with the nitro groups twisted slightly out of the ring planes [maximum deviations from the ring plane of 0.13 (2) and 0.22 (2) Å in the two molecules]. The respective O—N—C—C torsion angles are 6.0 (4) and 12.5 (4)°. In the crystal structure, molecules are linked by intermolecular N—H...O, C—H...O, O—H...O and O—H...N interactions into a three-dimensional network.