{{DISPLAYTITLE:C20H38O2}} The molecular formula C20H30O may refer to: Ethyl oleate Gadoleic acid Vaccenyl acetate Eicosenoic acid Paullinic acid, also called 7-Eicosenoic acid Prostanoic acid, also called 9-Eicosenoic acid 11-Eicosenoic acid, also called gondoic acid Molecular formulas