Taxifolin

Taxifolin
Names
IUPAC name
(2R,3R)-3,3′,4′,5,7-Pentahydroxyflavan-4-one
Systematic IUPAC name
(2R,3R)-2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-2,3-dihydro-4H-1-benzopyran-4-one
Other names
Dihydroquercetin
Taxifoliol
Distylin
(+)-Taxifolin
trans-Dihydroquercetin
(+)-Dihydroquercetin
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.006.859 Edit this at Wikidata
EC Number
  • 207-543-4
KEGG
UNII
  • InChI=1S/C15H12O7/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6/h1-5,14-19,21H/t14-,15+/m0/s1 ☒N
    Key: CXQWRCVTCMQVQX-LSDHHAIUSA-N ☒N
  • InChI=1/C15H12O7/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6/h1-5,14-19,21H/t14-,15+/m0/s1
    Key: CXQWRCVTCMQVQX-LSDHHAIUBE
  • OC1=C(C([C@H](O)[C@@H](C2=CC(O)=C(O)C=C2)O3)=O)C3=CC(O)=C1
Properties
C15H12O7
Molar mass 304.254 g·mol−1
Appearance Brown powder
Melting point 237 °C (459 °F; 510 K)[1]
UV-vis (λmax) 290, 327 nm (methanol)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Taxifolin (5,7,3',4'-flavan-on-ol), also known as dihydroquercetin, belongs to the subclass flavanonols in the flavonoids, which in turn is a class of polyphenols. It is extracted from plants such as Siberian larch and milk thistle.

  1. ^ Graham HM, Kurth EF (1949). "Constituents of Extractives from Douglas Fir". Industrial and Engineering Chemistry. 41 (2): 409–414. doi:10.1021/ie50470a035.