Sorcinol. Apigenin is a carotenoid with the chemical formula C10H16 and is a non-polar molecule. Since the apigenin molecule consists mainly of carbon and hydrogen atoms with no polar bonds or functional groups, it is less polar. Kaempferol is a phenolic compound with the chemical formula C7H8O2 and contains phenolic functional groups with polar bonds. Therefore, kaempferol has some polarity. Therefore, kaempferol has a large polarity.