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Acta Cryst. (2007). E63, o2943  [ doi:10.1107/S1600536807024749 ]


Z.-P. Liang

Abstract: The asymmetric unit of the title compound, C9H10N4O4, consists of two crystallographically independent molecules, which are held together by C-H...O hydrogen bonds. Each molecule is essentially planar.

Online 23 May 2007

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