Laricitrin

Laricitrin
Names
	IUPAC name 3,3′,4′,5,7-Pentahydroxy-5′-methoxyflavone
	Systematic IUPAC name 2-(3,4-Dihydroxy-5-methoxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one
	Other names 3'-O-Methylmyricetin
Identifiers
CAS Number	53472-37-0 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:31763 ;
ChemSpider	4445351 ;
KEGG	C12633 ;
PubChem CID	5282154;
UNII	JQZ2DUC4C9 ;
CompTox Dashboard (EPA)	DTXSID40415210 ;
	InChI InChI=1S/C16H12O8/c1-23-11-3-6(2-9(19)13(11)20)16-15(22)14(21)12-8(18)4-7(17)5-10(12)24-16/h2-5,17-20,22H,1H3 Key: CFYMYCCYMJIYAB-UHFFFAOYSA-N ; InChI=1/C16H12O8/c1-23-11-3-6(2-9(19)13(11)20)16-15(22)14(21)12-8(18)4-7(17)5-10(12)24-16/h2-5,17-20,22H,1H3 Key: CFYMYCCYMJIYAB-UHFFFAOYAK ;
	SMILES O=C1c3c(O/C(=C1/O)c2cc(O)c(O)c(OC)c2)cc(O)cc3O;
Properties
Chemical formula	C16H12O8
Molar mass	332.264 g·mol−1
	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

Laricitrin is an O-methylated flavonol, a type of flavonoid. It is found in red grape (absent in white grape) and in Vaccinium uliginosum (bog billberries). It is one of the phenolic compounds present in wine.

Metabolism

Laricitrin is formed from myricetin by the action of the enzyme myricetin O-methyltransferase. It is further methylated by laricitrin 5'-O-methyltransferase into syringetin.