Ayanin

Names
IUPAC name 5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,7-dimethoxychromen-4-one
Other names 3,7,4'-Tri-O-methylquercetin 3,7,4'-trimethylquercetin 5,3'-dihydroxy-3,7,4'-trimethoxyflavone
Identifiers
CAS Number	572-32-7
3D model (JSmol)	Interactive image
PubChem CID	5280682
CompTox Dashboard (EPA)	DTXSID20205833
SMILES COC1=C(C=C(C=C1)C2=C(C(=O)C3=C(C=C(C=C3O2)OC)O)OC)O
Properties
Chemical formula	C18H16O7
Molar mass	344.31 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ayanin is a O-methylated flavonol, a type of flavonoid. It is the 3,7,4'-tri-O-methylation of quercetin.

It can be found in Croton schiedeanus. It can also be synthetized^[1].

Biosynthetis

The enzyme 3,7-dimethylquercetin 4'-O-methyltransferase uses S-adenosyl methionine and 5,3',4'-trihydroxy-3,7-dimethoxyflavone (rhamnazin) to produce S-adenosylhomocysteine and 5,3'-dihydroxy-3,7,4'-trimethoxyflavone (ayanin).

References