Longifolene is the common (or trivial) chemical name of a naturally occurring, oily liquid hydrocarbon found primarily in the high-boiling fraction of certain pine resins. The name is derived from that of a pine species from which the compound was isolated, Pinus longifolia.Chemically, longifolene is a tricyclic sesquiterpene. This molecule is chiral, and the enantiomer commonly found in pines and other higher plants exhibits a positive optical rotation of +42.73°. The other enantiomer (optical rotation −42.73°) is found in small amounts in some primitive plants like fungi and liverworts.Longifolene is used in organic synthesis for the preparation of dilongifolylborane, a chiral hydroborating agent.Longifolene is also one of two most abundant aroma constituents of lapsang souchong tea, due to the fact that the tea is smoked over pine fires.

Appearance Clear liquid
Colour, Hazen Unit (HU) max 50
Total Longifolene+CF, % minimum by GLC 75-85%
Specific Gravity @ 20ºC 0.928 - 0.934
Refractive index @ 20ºC 1.5000 - 1.5060
Flash Point (TCC) Above 95º C
Odour Sweet terpenic
Miscibility Miscible in Benzene, CyclohexanePetroleum and Ether.
CAS No. 475-20-7
Shipping Name Longifolene
LD50 Oral (rat) N.A
LD50 Dermal (rabbit) N.A
Skin Irritation (20% in petrolatum) No irritation
Skin sensitization (20% in petrolatum) No sensitization Undiluted liquid may cause skin and eye irritation


  • In the preparation of blends of vetivert & Sandalwood oils
  • Excellent fixative for woody odorants & floral blends
  • In the preparation of cosmetics and toiletries such as – Cologne & toilet waters/sprays & deodorants / face creams
    shave-skin lotions / soaps, detergents, bath salts & shampoos.