SpathulenolSpathulenol is a tricyclic sesquiterpene alcohol which has a basic skeleton similar to the azulenes. It occurs in oregano among other plants.History and occurrenceA volatile oil was extracted from mugwort distillery and tarragon, from which the sesquiterpene alcohol spathulenol was isolated for the first time in 1975 as a colorless, viscous compound with an earth-aromatic odor and bitter-spicy taste.