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Figure 1 The mol­ecular structure of C13H10N2O4, showing the atom numbering scheme and 50% probability displacement ellipsoids. Dashed lines indicate intra­molecular N–H⋯O hydrogen bonds.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 65| Part 3| February 2009| Pages o490-o491
doi:10.1107/S1600536809001007
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