Acta Cryst. (2004). E60, o779-o781  [ doi:10.1107/S1600536804008153 ]

Ammonium quercetin-5'-sulfonate formamide solvate

L. Mazur, J. Tokarska, A. E. Koziol and M. Kopacz

Abstract: The ammonium salt of 2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxo-4H-1-benzopyran-2-yl)benzenesulfonic acid (common name quercetin-5'-sulfonate), NH₄⁺·C₁₅H₉O₁₀S^-·CH₃NO, crystallizes as the formamide solvate. The presence of the sulfonate group on the flavonoid core increases the solubility of this compound in water. In the solid state, anion-anion, anion-cation and anion-solvent-cation assemblies are formed by numerous intermolecular hydrogen bonds.

Online 17 April 2004

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