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Table 1 Chemical structure of flavonoids classified by subclass of flavonoids

From: Predictive QSAR model confirms flavonoids in Chinese medicine can activate voltage-gated calcium (CaV) channel in osteogenesis

SubclassNameSubstitution
OHOCH3Others
FlavonolMyricetin3, 5, 7, 3′, 4′, 5′  
FlavonolQuercetin3, 5, 7, 3′, 4′  
FlavonolGenistein5, 7, 4′  
FlavonolIsorhamnetin3, 5, 7, 4′3′ 
FlavoneLuteolin5, 7, 3′, 4′  
FlavoneApigenin5, 7, 4′  
FlavoneChrysin5, 7  
FlavonolKaempferol3, 5, 7, 4′  
FlavonolTamarixetin3, 5, 7, 3′4′ 
FlavonolRutin5, 7, 3′, 4′ O-Rutinose
Flavanone(±)-Taxifolin3, 5, 7, 3′, 4′  
Flavonol3,6,4′-Trihydroxyflavone3, 6, 4′  
Flavone5,7,2′-Trihydroxyflavone5, 7, 2′  
FlavoneScutellarein5, 6, 7, 4′  
FlavanoneNaringin5, 4′ O-β-Neo-hesperidose
Flavone5-Hydroxyflavone5  
Flavonol3,4′-Dihydroxyflavone3, 4′  
IsoflavoneDaidzein7, 4′  
FlavonolMorin3, 5, 7, 2′, 4′  
Flavanone(±)-Naringenin5, 7, 4′  
FlavonolResokaempferol3, 7, 4′  
FlavoneBaicalein5, 6, 7  
Flavonol3-Methyl galangin5, 73 
FlavonolGalangin3, 5, 7