Sodium (1R)-d-glucit-1-yl­sulfonate monohydrate

The title salt, Na(+)·C(6)H(13)O(9)S(−)·H(2)O, crystallizes with three independent cations, molecular anions and solvent water molecules in the asymmetric unit. This crystalline monohydrate addition product, formed by reaction of d-glucose and sodium hydrogen sulfite in water, forms a three-dimensional network through complex cation coordination and extensive inter­molecular hydrogen bonding. Each of the independent mol­ecules has an open-chain structure with the carbon chains adopting a sickle-like conformation, similar to that found in the potassium salt [Cole et al. (2001 ▶). Carbohydr. Res. 335, 1–10], but there are significant differences in the patterns of complexation.