p-Toluidinium 2'-Hydroxy-3'-methoxy-5'-flavonesulfonate Hydrate

The title complex, C₇H₁₀N⁺.C₁₆H₁₁O₇S^-.H₂O, is a p-toluidinium hydrated salt of 2'-hydroxy-3'-methoxy-5'-flavonesulfonic acid [systematic name: 4-hydroxy-5-methoxy-3-(4-oxo-4H[2]benzopyran-2-yl)benzenesulfonic acid]. The N atom of p-toluidine is protonated to give the cation. The self-assembly of the ionic counterparts is mediated by a water molecule of hydration.

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