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Flavonols are a class of flavonoids that use the 3-hydroxyflavone backbone (3-hydroxy-2-phenylchromen-4-one (IUPAC)). Their diversity stems from the different positions the phenolic -OH groups.

Some examples include:

  • Quercetin (3,3',4',5,7-pentahydroxy-2-phenylchromen-4-one)
  • Kaempferol (3,4',5,7-tetrahydroxy-2-phenylchromen-4-one)
  • Myricetin (3,,3',4',5',5,7-hexahydroxy-2-phenylchromen-4-one)
  • Fisetin (3,3',4',7-tetrahydroxy-2-phenylchromen-4-one)
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Flavonols". A list of authors is available in Wikipedia.
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