C21H20O11
# C21H20O11

The molecular formula $C_{21}H_{20}O_{11}$ (molar mass: 448.38 g/mol, exact mass: 448.100561 u) may refer to:

* Astragalin, a flavonol
* Cynaroside, a flavone
* Kaempferol 7-O-glucoside, a flavonol
* Isoorientin, a flavone
* Maritimein, an aurone
* Orientin, a flavone
* Quercitrin, a flavonol
* Rhodionin, a flavonol rhamnoside
* Trifolin, a flavanol galactoside
