Received 27 August 2009
In the crystal of the title compound, C18H22N2O4S·2H2O, molecules are linked into a one-dimensional chain structure by C-HO, N-HO, O-HO and O-HN hydrogen bonds.
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); 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: AT2871 ).
The authors thank the Program for New Century Excellent Talents in Universities for a research grant.
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