Isoquercetin

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Isoquercetin
Isoquercetin structure
Names
IUPAC name
2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
Other names
Isoquercitrin
Isoquercitroside
Isoquercitin
Trifoliin
Isotrifolin
Trifoliin A
Isohyperoside
Isotrifoliin
Quercetin-3-glucoside
Quercetin-3-O-glucoside
Quercetin 3-O-β-D-glucopyranoside
Identifiers
482-35-9 YesY
ChemSpider 4444361
Jmol-3D images Image
PubChem 5280804
Properties
C21H20O12
Molar mass 464.38 g·mol−1
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Isoquercetin is a chemical compound. It can be isolated from mangoes and from Rheum nobile, the Noble rhubarb or Sikkim rhubarb, a giant herbaceous plant native to the Himalayas. Quercetin glycosides are also present in tea.[1]

It is the 3-O-glucoside of quercetin.

Spectral data[edit]

The lambda-max for isoquercetin is 254.8 and 352.6 nm.

References[edit]

  1. ^ Sakakibara, Hiroyuki; Honda, Yoshinori; Nakagawa, Satoshi; Ashida, Hitoshi; Kanazawa, Kazuki (2003). "Simultaneous Determination of All Polyphenols in Vegetables, Fruits, and Teas". Journal of Agricultural and Food Chemistry 51 (3): 571–81. doi:10.1021/jf020926l. PMID 12537425.