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-1λ4-benzopyran-1-ylium
Identifiers
3D model (JSmol)	Interactive image;
ChemSpider	30780721 ;
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 Key: USQSSTLNPXPPHA-UHFFFAOYSA-O ; 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). verify (what is ?) 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