2-Hydroxy-N′-methyl-5-nitrobenzohydrazide

Abstract

In the title compound, C8H9N3O4, there are two molecules in the asymmetric unit, one of which is in the zwitterionic form. The zwitterion contains an intramolecular N—H...O hydrogen bond and the other molecule contains both an intramolecular N—H...O and an intramolecular O—H...O hydrogen bond. In the crystal, N—H...O and N—H...N hydrogen bonds link the molecules, formimg a two-dimensional network parallel to (10-1).