Isorhamnetin

Isorhamnetin

Isorhamnetin structure
Names
IUPAC name 3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)chromen-4-one
Other names 3-methylquercetin 3-Methylquercetin Isorhamnetol isorhamentin isorhamnetine iso-rhamnetin 3'-Methoxyquercetin
Identifiers
CAS Number	480-19-3 Y
ChEBI	CHEBI:6052 N
ChEMBL	ChEMBL379064 N
ChemSpider	4444973 N
Jmol 3D model	Interactive image
PubChem	5281654
UNII	07X3IB4R4Z N
InChI InChI=1S/C16H12O7/c1-22-11-4-7(2-3-9(11)18)16-15(21)14(20)13-10(19)5-8(17)6-12(13)23-16/h2-6,17-19,21H,1H3 N Key: IZQSVPBOUDKVDZ-UHFFFAOYSA-N N InChI=1/C16H12O7/c1-22-11-4-7(2-3-9(11)18)16-15(21)14(20)13-10(19)5-8(17)6-12(13)23-16/h2-6,17-19,21H,1H3 Key: IZQSVPBOUDKVDZ-UHFFFAOYAD
SMILES COC1=C(C=CC(=C1)C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O
Properties
Chemical formula	C16H12O7
Molar mass	316.26 g/mol
Melting point	307 °C (585 °F; 580 K)
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

Isorhamnetin is an O-methylated flavonol, a type of flavonoid. It can be found in Tagetes lucida, a psychedelic plant from Mexico and Central America.

Metabolism

The enzyme quercetin 3-O-methyltransferase uses S-adenosyl methionine and quercetin to produce S-adenosylhomocysteine and isorhamnetin.

The enzyme 3-methylquercetin 7-O-methyltransferase uses S-adenosyl methionine and 5,7,3',4'-tetrahydroxy-3-methoxyflavone (isorhamnetin) to produce S-adenosylhomocysteine and 5,3',4'-trihydroxy-3,7-dimethoxyflavone (rhamnazin).

Glycosides

• Isorhamnetin-3-O-rutinoside-7-O-glucoside
• Isorhamnetin-3-O-rutinoside-4'-O-glucoside
• Narcissin (Isorhamnetin-3-O-rutinoside)

See also

• Tamarixetin, the 4'-methyl analog

External links

• Isorhamnetin on chemblink.com

See also

• List of antioxidants in food
• List of phytochemicals in food