Retusin (flavonol)

Not to be confused with retusin (isoflavone).

Retusin
Names

IUPAC name 2-(3,4-dimethoxyphenyl)-5-hydroxy-3,7-dimethoxychromen-4-one
Other names Quercetin tetramethylether Quercetin-3,7,3',4'-tetramethyl ether Tetramethylquercetin Retusine
Identifiers
CAS Number	1245-15-4^Y
ChEMBL	ChEMBL77966
ChemSpider	4508983
EC Number	214-991-4
Jmol interactive 3D	Image
PubChem	5352005
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 Key: HHGPYJLEJGNWJA-UHFFFAOYSA-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).
Y 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

↑ Exudate flavones and flavanones in Origanum species and their interspecific variation. Melpomene Skoula, Renée J. Grayer, Geoffrey C. Kite and Nigel C. Veitch, Biochemical Systematics and Ecology, Volume 36, Issue 8, August 2008, Pages 646-654
↑ Retusin (Ariocarpus) on kanaya.naist.jp

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Flavonols

Aglycones

Conjugates

Glycosides of herbacetin

Rhodionin
Rhodiosin

Glycosides of kaempferol

Afzelin (Kaempferol 3-rhamnoside)
Astragalin (kaempferol 3-O-glucoside)
Kaempferitrin (kaempferol 3,7-dirhamnoside)
Juglanin (Kaempferol 3-O-arabinoside)
Kaempferol 3-alpha-L-arabinopyranoside
Kaempferol 3-alpha-D-arabinopyranoside
Kaempferol 7-alpha-L-arabinoside
Kaempferol 7-O-glucoside
Kaempferol 3-lathyroside
Kaempferol 4'-rhamnoside
Kaempferol 5-rhamnoside
Kaempferol 7-rhamnoside
Kaempferol 7-O-alpha-L-rhamnofuranoside
Kaempferol 3-xyloside
Kaempferol 7-xyloside
Robinin (kaempferol-3-O-robinoside-7-O-rhamnoside)
Kaempferol 3-O-rutinoside
Sophoraflavonoloside (Kaempferol 3-O-sophoroside)
Trifolin (Kaempferol 3-O-beta-D-galactoside)

Glycosides of myricetin

Betmidin (Myricetin 3-O-arabinoside)
Myricetin 3-O-rutinoside
Myricetin-3-O-neohesperidoside
Myricitrin (Myricetin 3-O-rhamnoside)

Conjugates of quercetin

Sulfates	Quercetin 3-O-sulfate Quercetin 3,3'-bissulfate Quercetin 3,4'-bissulfate

Glycosides	Avicularin (quercetin-3-O-α-L-arabinofuranoside) CTN-986 Guaijaverin (quercetin 3-O-arabinoside) Heliosin (quercetin 3-digalactoside) Hyperoside (quercetin 3-O-galactoside) Isoquercetin (quercetin 3-O-glucoside) Miquelianin (quercetin 3-O-glucuronide) Quercetin 3,4'-diglucoside Quercetin-3-sophorodide Quercitrin (quercetin 3-O-rhamnoside) Rutin (quercetin rutinoside) Reinutrin (quercetin-3-D-xyloside) Spiraeoside (quercetin 4'-O-glucoside) Taxillusin (galloylated 3-O-glucoside of quercetin°

O-Methylated flavonols

Aglycones

Glycosides

of isorhamnetin	Narcissin (Isorhamnetin 3-O-rutinoside) Isorhamnetin 3-O-glucoside Tamarixetin 7-rutinoside

other	Azalein (Azaleatin 3-O-α-L-rhamnoside) Centaurein (Centaureidin 7-O-glucoside) Eupalin (Eupalitin 3-0-rhamnoside) Eupatolin (Eupatolitin 3-O-rhamnoside) Jacein (Jaceidin 7-O-glucoside) Patulitrin (Patuletin 7-O-glucoside Xanthorhamnin (Rhamnetin glycoside)

Derivative flavonols

Aglycones	Noricaritin Dihydronoricaritin

Glycosides	Amurensin Icariin Phelloside Dihydrophelloside Rutin S

Pyranoflavonols

Aglycones	Karanjachromene

Furanoflavonols

Aglycones	Karanjin

Glycosides	Pongamoside A, B and C

Semisynthetic

Glycosides	Hydroxyethylrutosides Monoxerutin Troxerutin

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