Delphinidin
Chemical compound
From Wikipedia, the free encyclopedia
Delphinidin (also delphinidine[1][2]) is an anthocyanidin, a primary plant pigment, and also an antioxidant.[3] Delphinidin gives blue hues to flowers in the genera Viola and Delphinium. It also gives the blue-red color of the grape variety Cabernet Sauvignon, and can be found in cranberries and Concord grapes as well as pomegranates,[4] and bilberries.[5]
| Names | |
|---|---|
| IUPAC name
3,3′,4′,5,5′,7-Hexahydroxyflavylium | |
| Systematic IUPAC name
3,5,7-Trihydroxy-2-(3,4,5-trihydroxyphenyl)-1λ4-1-benzopyran-1-ylium | |
| Identifiers | |
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.007.671 |
| E number | E163b (colours) |
| KEGG | |
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CompTox Dashboard (EPA) |
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| Properties | |
| C15H11O7+ | |
| Molar mass | 303.24 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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Delphinidin, like nearly all other anthocyanidins, is pH-sensitive, i.e. a natural pH indicator, and changes from blue in basic solution to red in acidic solution.
Glycosides
Several glycosides derived from delphinidin are known:
- Myrtillin (delphinidin-3-O-glucoside) and tulipanin (delphinidin-3-O-rutinoside) can be found in blackcurrant pomace.
- Violdelphin (delphinidin 3-rutinoside-7-O-(6-O-(4-(6-O-(4-hydroxybenzoyl)-β-D-glucosyl)oxybenzoyl)-β-D-glucoside) is responsible for the purplish-blue flower color of Aconitum chinense.[6]
- Nasunin (delphinidin-3-(p-coumaroylrutinoside)-5-glucoside) is responsible for the colour of the eggplant fruit's purple skin.[7]
- Delphinidin ternatins including Clitoria ternatea ternatins
See also
- Prodelphinidin, a type of condensed tannins
