Acta Cryst. (2013). E69, o1223 [ doi:10.1107/S1600536813018278 ]
Abstract: The crystal structure of the title compound, C9H9N3O2, features N-HN and C-HO interactions. The N-HN interaction generates a chain running along the a axis and the C-HO interaction generates a chain along the c axis. An intramolecular C-HO interaction is also observed.
Copyright © International Union of Crystallography