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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 (also Delphinidine) is an anthocyanidin, a primary plant pigment, and also an antioxidant. Delphinidin gives blue hues to flowers in the genera Viola and Delphinium. It also gives the blue-red color of the grape that produces Cabernet Sauvignon, and can be found in cranberries and Concord grapes as well as pomegranates. Delphinidin, like nearly all other anthocyanidins, is pH-sensitive, and changes from red in acidic solution to blue in basic solution.
Several glycosides derived from delphinidin are known.
Violdelphin (delphinidin 3-rutinoside-7-O-(6-O-(4-(6-O-(4-hydroxybenzoyl)-β-D-glucosyl)oxybenzoyl)-β-D-glucoside) is responsible for purplish blue flower color of Aconitum chinense.
Nasunin (delphinidin-3-(p-coumaroylrutinoside)-5-glucoside) is responsible for the colour of the eggplant fruit purple skin.
- Prodelphinidin, a type of condensed tannins
- Afaq, F.; Syed, D. N.; Malik, A.; Hadi, N.; Sarfaraz, S.; Kweon, M.-H.; Khan, N.; Zaid, M. A.; Mukhtar, H. (2007). "Delphinidin, an Anthocyanidin in Pigmented Fruits and Vegetables, Protects Human HaCaT Keratinocytes and Mouse Skin Against UVB-Mediated Oxidative Stress and Apoptosis". Journal of Investigative Dermatology 127 (1): 222–232. doi:10.1038/sj.jid.5700510. PMID 16902416.
- Ribéreau-Gayon, J.; Ribéreau-Gayon, P. (1958). "The Anthocyans and Leucoanthocyans of Grapes and Wines". American Journal of Enology and Viticulture 9: 1–9.
- CID 3083066 from PubChem
- Antioxidant activity of nasunin, an anthocyanin in eggplant peels. Noda Y, Kneyuki T, Igarashi K, Mori A and Packer L, Toxicology, 7 Aug 2000, volume 148, issues 2-3, pages 119-123, PubMed, doi:10.1016/S0300-483X(00)00202-X