Columnidin

Columnidin

Chemical structure of columnidin
Names
IUPAC name 3′,4′,5,7,8-Pentahydroxyflavylium
Preferred IUPAC name 2-(3,4-Dihydroxyphenyl)-5,7,8-trihydroxy-1λ^4-benzopyran-1-ylium
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	30780721^N
PubChem CID	57459464
CompTox Dashboard (EPA)	DTXSID101028787
InChI InChI=1S/C15H10O6/c16-9-3-1-7(5-11(9)18)13-4-2-8-10(17)6-12(19)14(20)15(8)21-13/h1-6H,(H4-,16,17,18,19,20)/p+1^N Key: USQSSTLNPXPPHA-UHFFFAOYSA-O^N InChI=1/C15H10O6/c16-9-3-1-7(5-11(9)18)13-4-2-8-10(17)6-12(19)14(20)15(8)21-13/h1-6H,(H4-,16,17,18,19,20)/p+1 Key: USQSSTLNPXPPHA-IKLDFBCSAT
SMILES C1=CC(=C(C=C1C2=[O+]C3=C(C=C2)C(=CC(=C3O)O)O)O)O
Properties
Chemical formula	C15H11O6^+
Molar mass	287.244
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

Columnidin is an orange red pigment, belonging to the 3-deoxyanthocyanidins^[1] 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,^[2] notably in Columnea hybrida.^[3]

References

1. "Gesneriaceae and Scrophulariaceae : Robert Brown and now, Anton Weber, 2004" (PDF). Archived from the original (PDF) on 2015-09-24. Retrieved 2009-08-26.
2. Sinningia Pollinators
3. "Studies on columnidin biosynthesis with flower extracts from Columnea hybrida, Stich, K.; Forkmann, G.; Z. Naturforsch. C 43, 311-314 (1988)". Archived from the original on 2012-10-25. Retrieved 2009-08-26.