Table 1 Chemical structure of flavonoids classified by subclass of flavonoids
Subclass | Name | Substitution | ||
|---|---|---|---|---|
OH | OCH3 | Others | ||
Flavonol | Myricetin | 3, 5, 7, 3′, 4′, 5′ | ||
Flavonol | Quercetin | 3, 5, 7, 3′, 4′ | ||
Flavonol | Genistein | 5, 7, 4′ | ||
Flavonol | Isorhamnetin | 3, 5, 7, 4′ | 3′ | |
Flavone | Luteolin | 5, 7, 3′, 4′ | ||
Flavone | Apigenin | 5, 7, 4′ | ||
Flavone | Chrysin | 5, 7 | ||
Flavonol | Kaempferol | 3, 5, 7, 4′ | ||
Flavonol | Tamarixetin | 3, 5, 7, 3′ | 4′ | |
Flavonol | Rutin | 5, 7, 3′, 4′ | O-Rutinose | |
Flavanone | (±)-Taxifolin | 3, 5, 7, 3′, 4′ | ||
Flavonol | 3,6,4′-Trihydroxyflavone | 3, 6, 4′ | ||
Flavone | 5,7,2′-Trihydroxyflavone | 5, 7, 2′ | ||
Flavone | Scutellarein | 5, 6, 7, 4′ | ||
Flavanone | Naringin | 5, 4′ | O-β-Neo-hesperidose | |
Flavone | 5-Hydroxyflavone | 5 | ||
Flavonol | 3,4′-Dihydroxyflavone | 3, 4′ | ||
Isoflavone | Daidzein | 7, 4′ | ||
Flavonol | Morin | 3, 5, 7, 2′, 4′ | ||
Flavanone | (±)-Naringenin | 5, 7, 4′ | ||
Flavonol | Resokaempferol | 3, 7, 4′ | ||
Flavone | Baicalein | 5, 6, 7 | ||
Flavonol | 3-Methyl galangin | 5, 7 | 3 | |
Flavonol | Galangin | 3, 5, 7 | ||