Beta-caryophyllene is a bicyclic sesquiterpene that is found in essential oils including basil, copaiba, black caraway, oregano, lavender, rosemary, cinnamon, ylang-ylang, and clove.
It is usually found as a mixture with isocaryophyllene (the cis double bond isomer) and α-humulene (obsolete name: α-caryophyllene), a ring-opened isomer.
Beta-caryophyllene can be manufactured from turpentine by-products industrially.