Ayanin

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 Registry Number	572-32-7 Y=
ChEBI	CHEBI:27825 Y
ChEMBL	ChEMBL74898 Y
ChemSpider	4444274 Y
InChI InChI=1S/C18H16O7/c1-22-10-7-12(20)15-14(8-10)25-17(18(24-3)16(15)21)9-4-5-13(23-2)11(19)6-9/h4-8,19-20H,1-3H3 Y Key: KPCRYSMUMBNTCK-UHFFFAOYSA-N Y InChI=1/C18H16O7/c1-22-10-7-12(20)15-14(8-10)25-17(18(24-3)16(15)21)9-4-5-13(23-2)11(19)6-9/h4-8,19-20H,1-3H3 Key: KPCRYSMUMBNTCK-UHFFFAOYAE
Jmol-3D images	Image Image
PubChem	5280682
SMILES COC1=C(C=C(C=C1)C2=C(C(=O)C3=C(C=C(C=C3O2)OC)O)OC)O O=C1c3c(O/C(=C1/OC)c2ccc(OC)c(O)c2)cc(OC)cc3O
Properties
Chemical formula	C18H16O7
Molar mass	344.31 g/mol
Density	1.454 g/mL
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Y verify (what is: Y/N?)
Infobox references

Ayanin is an 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]

Biosynthesis

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