Received 23 June 2011
aCollege of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China,bResearch Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China,cHangzhou Fist Chemical Co. Ltd, Xiaoshan, Hangzhou 310007, People's Republic of China, and dLinjiang College, Hangzhou Vocational and Technical College, Hangzhou 310018, People's Republic of China
Correspondence e-mail: email@example.com
The asymmetric unit of the title compound, C10H12N2O3·2H2O, contains two organic molecules with similar conformations and four water molecules. Each organic molecule is close to planar (r.m.s. deviations = 0.035 and 0.108 Å) and adopts a trans conformation with respect to its C=N bond. In the crystal, the components are linked into a three-dimensional network by N-HO, O-HO, O-HN and C-HO hydrogen bonds, some of which are bifurcated. An R22(8) loop occurs between adjacent organic molecules.
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; 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: HB5929 ).
The authors thank Hangzhou Vocational and Technical College, China, for financial support.
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