Saponarin
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| Names | |
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| IUPAC name
5-Hydroxy-6-(β-D-glucopyranosyl)-7-(β-D-glucopyranosyloxy)flavone
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| 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 ) |
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| ChemSpider | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C27H30O15 | |
| Molar mass | 594.52 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Saponarin is a
jade color to the flower. This coloration has been shown to be an example of copigmentation, a result of the presence of malvin (an anthocyanin) and saponarin in the ratio 1:9. Under the alkaline conditions (pH 7.9) found in the sap of the epidermal 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.).