Monoterpenes

**Definition:** Compounds with a core of 10 carbons generally formed via the mevalonate pathway from the combination of 3,3-dimethylallyl pyrophosphate and isopentenyl pyrophosphate. They are cyclized and oxidized in a variety of ways. Due to the low molecular weight many of them exist in the form of essential oils (OILS, VOLATILE).

**Tree numbers:** - D02.455.849.575

**Synonyms:** - Monoterpenoid - Monoterpene - Monoterpenoids