C21H20O9
# C21H20O9

The molecular formula $C_{21}H_{20}O_9$ (molar mass: 416.38 g/mol, exact mass: 416.1107 u) may refer to:

* Aleuritin, a coumarinolignoid
* Daidzin, an isoflavone
* Puerarin, an isoflavone
