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

The title salt, Na+center dot C6H13O9S-center dot H2O, 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.