Marneral is a member of the class of compounds known as sesterterpenoids. Sesterterpenoids are terpenes composed of five consecutive isoprene units. Marneral is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Marneral can be found in a number of food items such as ginkgo nuts, ceylon cinnamon, ostrich fern, and american pokeweed, which makes marneral a potential biomarker for the consumption of these food products.