Isoquercetin

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Isoquercetin
Isoquercetin structure
Identifiers
CAS number 482-35-9 YesY
PubChem 5280804
ChemSpider 4444361
Jmol-3D images Image 1
Properties
Molecular formula C21H20O12
Molar mass 464.38 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
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]

UV-Vis
Lambda-max 254.8 ; 352.6 nm
Extinction coefficient  ?
IR
Major absorption bands  ? cm−1
NMR
Proton NMR
Carbon-13 NMR
Other NMR data
MS
Masses of
main fragments

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.