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Acta Cryst. (2008). E64, o2257 [ doi:10.1107/S160053680803554X ]
Abstract: The asymmetric unit of the title compound, C9H8N2O2, contains two molecules. In the crystal structure, both molecules form inversion dimers via pairs of O-H
O hydrogen bonds, and a C-H
O interation is also seen.
Online 8 November 2008
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