Fisetin

Fisetin (7,3′,4′-flavon-3-ol) is a plant flavonol from the flavonoid group of polyphenols. It can be found in many plants, where it serves as a yellow/ochre colouring agent. It is also found in many fruits and vegetables, such as strawberries, apples, persimmons, onions and cucumbers. Its chemical formula was first described by Austrian chemist Josef Herzig in 1891.

Fisetin
Names
IUPAC name
3,3′,4′,7-Tetrahydroxyflavone
Systematic IUPAC name
2-(3,4-Dihydroxyphenyl)-3,7-dihydroxy-4H-1-benzopyran-4-one
Other names
2-(3,4-Dihydroxyphenyl)-3,7-dihydroxychromen-4-one
Cotinin (not to be confused with Cotinine)
5-Deoxyquercetin
Superfustel
Fisetholz
Fietin
Fustel
Fustet
Viset
Junger fustik
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.007.669
KEGG
PubChem CID
UNII
  • InChI=1S/C15H10O6/c16-8-2-3-9-12(6-8)21-15(14(20)13(9)19)7-1-4-10(17)11(18)5-7/h1-6,16-18,20H Y
    Key: XHEFDIBZLJXQHF-UHFFFAOYSA-N Y
  • InChI=1/C15H10O6/c16-8-2-3-9-12(6-8)21-15(14(20)13(9)19)7-1-4-10(17)11(18)5-7/h1-6,16-18,20H
    Key: XHEFDIBZLJXQHF-UHFFFAOYAQ
SMILES
  • O=C1c3c(O/C(=C1/O)c2ccc(O)c(O)c2)cc(O)cc3
Properties
C15H10O6
Molar mass 286.2363 g/mol
Density 1.688 g/mL
Melting point 330 °C (626 °F; 603 K)
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

The biological activity of fisetin has been studied in many laboratory assays; like other polyphenols it has many activities.

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