In Germany commercial vanilla is now largely prepared from eugenol, a constituent of oil of cloves.
eugenol, or eugenic acid, C10H12O2, is the chief constituent.
Chavibetol, an isomer of eugenol, occurs in the ethereal oil obtained from Piper betle.
The principal constituent of the oil is eugenol, together with caryophyllene and acet-eugenol.
While within certain limits the value of this oil is determined by its eugenol content, oils containing more than 93 per cent.
Oeillet is a combination possessed of a sweet carnation-like odour and having as a basis, eugenol or isoeugenol.
eugenol eu·ge·nol (yōō'jə-nôl', -nōl')
An aromatic liquid made from clove oil, used as a dental analgesic.