what are sesquiterpenes
Sesquiterpenes are a class of terpenes that consist of three isoprene units and have the empirical formula C 15 H 24. Like monoterpenes, sesquiterpenes may be acyclic or contain rings, including many unique combinations. Biochemical modifications such as oxidation or rearrangement produce the related sesquiterpenoids.he cadinenes contain two fused six-membered rings. Caryophyllene, a component of many essential oils such as clove oil, contains a nine-membered ring fused to a cyclobutane ring. Vetivazulene and guaiazulene are aromatic bicyclic sesquiterpenoids.