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| Names | |
|---|---|
| IUPAC name 5-Hydroxy-6-(β-D-glucopyranosyl)-7-(β-D-glucopyranosyloxy)flavone | |
| Systematic IUPAC name 5-Hydroxy-2-(4-hydroxyphenyl)-6-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-7-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4H-1-benzopyran-4-one | |
| Other names Isovitexin-7-O-glucoside Saponaretin-7-O-glucoside | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| UNII | |
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| Properties | |
| C27H30O15 | |
| Molar mass | 594.52 g/mol |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Saponarin is aflavoneglucoside. It is found inSaponaria officinalis and inStrongylodon macrobotrys where it imparts the characteristicjade color to the flower. This coloration has been shown to be an example ofcopigmentation, a result of the presence ofmalvin (ananthocyanin) and saponarin in the ratio 1:9. Under thealkaline conditions (pH 7.9) found in thesap of theepidermal cells, this combination produced a blue-green pigmentation; the pH of the colorless inner floral tissue was found to be lower, at pH 5.6. Experiments showed that saponarin produced a strong yellow colouring in slightly alkaline conditions, resulting in the greenish tone of the flower.[1] It is also found in passion flowers (Passiflora sp.).
