Terpene Series: Citronellol

If citronellol sounds familiar, you might recognize it from bright, yellow mosquito candles and insect repellants made from the citronella plant (thus the nickname “the mosquito plant”).

Citronellol, or dihydrogeraniol, is a natural acyclic monoterpenoid. Both enantiomers occur in nature.

Citronellol is found in plants like citronella plants (Cymbopogon nardus), lemon geraniums, lemongrass, eucalyptus, catnip, ginger, and of course, cannabis. The fresh, grassy smell of this terpene lends itself well as a fragrance ingredient to perfumes and is a base for botanical products like geranium oil and rose oil.

The signature smell of citronellol is also commonly found in mosquito sprays. However, note that citronella does attract other insects like spider mites, which can be an issue if you’re growing cannabis or other plants. Like other terpenes, citronellol scents vary; they can have a fresh, floral smell or bright citrus smell, depending on the version. This is one reason why citronellol makes for such perfect perfume compositions.

If citronellol is eaten, it may cause coughing or throat irritation. In general, there is little harm associated with citronellol. 

The boiling point of citronellol is 225 degrees Celsius.