Rhamnetin

Rhamnetin
Names

IUPAC name 3,3′,4′,5-Tetrahydroxy-7-methoxyflavone
Systematic IUPAC name 2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-1-benzopyran-4-one
Other names 7-Methylquercetin 7-Methoxyquercetin 7-O-Methylquercetin beta-Rhamnocitrin Quercetin 7-methyl ether
Identifiers
CAS Number	90-19-7^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:74992^N
ChemSpider	4445008^N
ECHA InfoCard	100.001.795
EC Number	201-974-1
KEGG	C10176^N
PubChem CID	5281691
UNII	71803L5F4S^Y
CompTox Dashboard (EPA)	DTXSID40237979
InChI InChI=1S/C16H12O7/c1-22-8-5-11(19)13-12(6-8)23-16(15(21)14(13)20)7-2-3-9(17)10(18)4-7/h2-6,17-19,21H,1H3^N Key: JGUZGNYPMHHYRK-UHFFFAOYSA-N^N InChI=1/C16H12O7/c1-22-8-5-11(19)13-12(6-8)23-16(15(21)14(13)20)7-2-3-9(17)10(18)4-7/h2-6,17-19,21H,1H3 Key: JGUZGNYPMHHYRK-UHFFFAOYAY
SMILES COC1=CC(=C2C(=C1)OC(=C(C2=O)O)C3=CC(=C(C=C3)O)O)O
Properties
Chemical formula	C₁₆H₁₂O₇
Molar mass	316.26 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

Chemical compound

Rhamnetin is an O-methylated flavonol, a type of chemical compound. It can be isolated from cloves.

The structure of the molecule was discovered by Austrian chemist Josef Herzig (1853–1924).

Glycosides

Rhamnetin is the aglycone of xanthorhamnin.

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Aglycones

Conjugates

Glycosides of herbacetin

Glycosides of kaempferol

Glycosides of myricetin

Conjugates of quercetin

Sulfates

Glycosides

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)