Baruol is a member of the class of compounds known as sesquiterpenoids. Sesquiterpenoids are terpenes with three consecutive isoprene units. Baruol is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Baruol can be found in a number of food items such as durian, garden onion, summer savory, and ginger, which makes baruol a potential biomarker for the consumption of these food products.
