Thujene is a natural flavoring obtained from Eucalyptus. Thujene is transparent in color with a slight yellow tint.
The term thujene usually refers to α-thujene. A less common chemically related double-bond isomer is known as β-thujene (or 2-thujene). Another double-bond isomer is known as sabinene. Thujene also goes under other names as well 3-Thujene, and Thujiene.
Thujene is often used in the cosmetic and fragrance industries due to its pungent, spicy taste and herbal, woodsy scent.