Retusin (flavonol)

Not to be confused with retusin (isoflavone).

Retusin

Names
IUPAC name 5-Hydroxy-3,3′,4′,7-tetramethoxyflavone
Systematic IUPAC name 2-(3,4-Dimethoxyphenyl)-5-hydroxy-3,7-dimethoxy-4H-1-benzopyran-4-one
Other names Quercetin tetramethylether Quercetin-3,7,3',4'-tetramethyl ether Tetramethylquercetin Retusine
Identifiers
CAS Number	1245-15-4^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:144861
ChEMBL	ChEMBL77966^N
ChemSpider	4508983^N
ECHA InfoCard	100.013.629
EC Number	214-991-4
PubChem CID	5352005
UNII	M8591903SD^Y
CompTox Dashboard (EPA)	DTXSID60924839
InChI InChI=1S/C19H18O7/c1-22-11-8-12(20)16-15(9-11)26-18(19(25-4)17(16)21)10-5-6-13(23-2)14(7-10)24-3/h5-9,20H,1-4H3^N Key: HHGPYJLEJGNWJA-UHFFFAOYSA-N^N InChI=1/C19H18O7/c1-22-11-8-12(20)16-15(9-11)26-18(19(25-4)17(16)21)10-5-6-13(23-2)14(7-10)24-3/h5-9,20H,1-4H3 Key: HHGPYJLEJGNWJA-UHFFFAOYAJ
SMILES COC1=C(C=C(C=C1)C2=C(C(=O)C3=C(C=C(C=C3O2)OC)O)OC)OC
Properties
Chemical formula	C19H18O7
Molar mass	358.34 g/mol
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

Retusin is an O-methylated flavonol, a type of flavonoid. It can be found in Origanum vulgare^[1] and in Ariocarpus retusus.^[2]

References

1. Skoula, Melpomene; Grayer, Renée J.; Kite, Geoffrey C.; Veitch, Nigel C. (2008). "Exudate flavones and flavanones in Origanum species and their interspecific variation". Biochemical Systematics and Ecology. 36 (8): 646–654. Bibcode:2008BioSE..36..646S. doi:10.1016/j.bse.2008.05.003.
2. Retusin (Ariocarpus) on kanaya.naist.jp