In the title compound, Na(+)·C(10)H(15)O(3) (-)·5H(2)O, the vertices of a distorted octa-hedron centred on the Na(+) cation are defined by six O atoms of water mol-ecules. The edge-sharing Na(H(2)O)(6) octa-hedra form a chain extended along the b-axis direction with adjacent Na(+) cations related by a twofold screw symmetry operation. The organic anion, which is not in close contact with the Na(+ )cation, is hydrogen-bonded to an uncoordinated water mol-ecule and to water mol-ecules of the Na(H(2)O)(6) octa-hedra.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2914966PMC
http://dx.doi.org/10.1107/S1600536807063775DOI Listing

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