|Molecular mass||204.36 g/mol|
|Boiling point||262-264 °C; 129-130 °C (14 mm Hg)|
|Disclaimer and references|
Caryophyllene, or (−)-β-caryophyllene, is a natural bicyclic sesquiterpene that is a constituent of some essential oils, especially clove oil and the oil from the stems and flowers of Syzygium aromaticum. 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. Caryophyllene is notable for having a cyclobutane ring, a rarity in nature.
Caryophyllene is one of the chemical compounds that contributes to the spiciness of black pepper.
- E. J. Corey, Rajat B. Mitra, and Hisashi Uda (1964). "Total Synthesis of d,l-Caryophyllene and d,l-Isocaryophyllene". J. Am. Chem. Soc. 86 (3): 485–492.