Acta Cryst. (2013). E69, o885 [ doi:10.1107/S1600536813012610 ]
Abstract: The crystal structure of the title compound, C5H4N2O2, is built of acid molecules located on a mirror plane. They form sheets stacked along the b-axis direction. The molecules interact via O-HN hydrogen bonds, forming  chains, and weak van der Waals interactions.
Hyper-Text Markup Language (HTML) file
Chemical Markup Language (CML) file (2.4 kbytes)
To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.
The download button will force most browsers to prompt for a file name to store the data on your hard disk.
Where possible, images are represented by thumbnails.
Copyright © International Union of Crystallography