The molecular formula C20H18O5 (molar mass : 338.35 g/mol, exact mass : 338.115424 u) may refer to:
- Desmethoxycurcumin, a curcuminoid
- Glyceollin I, a pterocarpan found in soybeans
- Glyceollin III, a pterocarpan found in soybeans
- Wighteone, an isoflavone found in Maclura aurantiaca
This set index page lists chemical structure articles associated with the same molecular formula.
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