The Sodium Salt of N1-Deprotonated Inosine, Na⁺.C₁₀H₁₁N₄O₅^-.2.5H₂O

The title compound, sodium inosinate(1-)-water (1/2.5), Na(inosineH_-1)·2.5H₂O, crystallizes from aqueous alkaline solutions. Each N1-deprotonated monoanion has a syn conformation, which is stabilized by intramolecular O5'-H...N3 hydrogen bonds. Face-shared pentaaquadisodium dications are contacted by ribose O2' and O5' atoms, but are not ligated by the hypoxanthine moiety.

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