Received 20 February 2010
In the crystal structure of the title compound, C9H12N2O3, weak intermolecular C-HO hydrogen bonds link the molecules into chains. Further weak C-HO hydrogen bonds together with - interactions [centroid-centroid distance = 3.672 (4) Å] between neighbouring chains lead to a double-chain structure propagating in .
Data collection: SMART (Bruker, 2007); cell refinement: SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2164 ).
This work was supported by the State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry.
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