Columnidin

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Columnidin

Other names 5,7,8,3′,4′-pentahydroxyflavylium^[1]
Identifiers
	Jmol-3D images	{{#if:Oc1ccc(cc1O)c2ccc3c([o+]2)c(O)c(O)cc3O\|Image 1
SMILES Oc1ccc(cc1O)c2ccc3c([o+]2)c(O)c(O)cc3O
Properties
Molecular formula	C₁₅H₁₁O₆ (C₁₅H₁₁ClO₆)
Molar mass	287.24 g/mol
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Columnidin is an orange red pigment, belonging to the 3-deoxyanthocyanidins^[2] found in red-flowered western-hemisphere gesneriad species such as episcias, columneas, sarmientas, and sinningias.

The columnidin is named after the gesneriad genus Columnea in which it is found,^[3] notably in Columnea hybrida.^[4]

References

↑ Comparative biochemistry of flavonoids—II. : 3-Desoxyanthocyanins and their systematic distribution in ferns and gesnerads. J.B. Harborne, Phytochemistry, Volume 5, Issue 4, July 1966, Pages 589-600
↑ Gesneriaceae and Scrophulariaceae : Robert Brown and now, Anton Weber, 2004
↑ Sinningia Pollinators
↑ Studies on columnidin biosynthesis with flower extracts from Columnea hybrida, Stich, K.; Forkmann, G.; Z. Naturforsch. C 43, 311-314 (1988)

v t e Anthocyanidins and their anthocyanin glucosides

3-hydroxyanthocyanidins	5-Desoxy-peonidin Aurantinidin Cyanidin 6-Hydroxycyanidin Delphinidin Fisetinidin Guibourtinidin Pelargonidin Robinetinidin

3-deoxyanthocyanidins	Apigeninidin Columnidin Diosmetinidin Gesneridin Luteolinidin Tricetinidin

O-methylated anthocyanidins	5-Desoxy-malvidin Capensinidin Europinidin Hirsutidin Malvidin Peonidin Petunidin Pulchellidin Rosinidin

Anthocyanins	Antirrhinin (Cyanidin-3-O-rutinoside) Callistephin (Pelargonidin 3-O-glucoside) Chrysanthemin (Cyanidin-3-O-glucoside) Malvin (Malvidin 3,5-diglucoside) Myrtillin (Delphinidin-3-O-glucoside) Oenin (Malvidin-3-O-glucoside) Peonidin-3-O-glucoside Petunidin 3,5-O-diglucoside Petunidin 3-O-arabinoside Petunidin 3-O-galactoside Petunidin-3-O-glucoside Petunidin 3-O-rhamnoside Petunidin-3-O-rutinoside Primulin (Malvidin-3-O-galactoside) Pulchellidin 3-glucoside Pulchellidin 3-rhamnoside Tulipanin (Delphinidin 3-O-rutinoside)

Acetylated anthocyanins	Cyanidin-3-O-(6-acetyl)-glucoside Delphinidin-3-O-(6-acetyl)-glucoside Malvidin-3-O-(6-acetyl)-glucoside Petunidin-3-O-(6-acetyl)-galactoside Petunidin-3-O-(6-acetyl)-glucoside Peonidin-3-O-(6-acetyl)-glucoside

Coumaroylated anthocyanins (cis- and trans-)	Cyanidin-3-O-(6-p-coumaroyl)glucoside Cyanidin-3-O-(di-p-coumarylglucoside)-5-glucoside Delphinidin-3-O-(6-p-coumaroyl)glucoside Malvidin-3-O-(6-p-coumaroyl)glucoside Petanin (petunidin 3-[6-O-(4-O-E-p-coumaroyl-O-α-l-rhamnopyranosyl)-β-d-glucopyranoside]-5-O-β-d-glucopyranoside) Petunidin-3-O-(6-p-coumaroyl)glucoside Peonidin-3-O-(6-p-coumaroyl)glucoside

Caffeoylated anthocyanins	Malvidin-3-O-(6-p-caffeoyl)glucoside Peonidin-3-O-(6-p-caffeoyl)glucoside Gentiodelphin (delphinidin 3-O-glucosyl-5-O-(6-O-caffeoyl-glucosyl)-3′-O-(6-O-caffeoyl-glucoside))

p-hydroxybenzoylated anthocyanins	Violdelphin

Flavanol-anthocyanin adducts	Malvidin glucoside-ethyl-catechin

Misc.	Metalloanthocyanins (Commelinin Cyanosalvianin Protocyanin Protodelphin) Pyranoanthocyanins Copigmentation

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