IUPAC name
Other names
Fenchyl alcohol
3D model (JSmol)
ECHA InfoCard 100.015.127 Edit this at Wikidata
  • InChI=1S/C10H18O/c1-9(2)7-4-5-10(3,6-7)8(9)11/h7-8,11H,4-6H2,1-3H3/t7-,8-,10+/m0/s1
  • CC1(C2CCC(C2)(C1O)C)C
Molar mass 154.253 g·mol−1
Density 0.942 g/cm3
Melting point 39 to 45 °C (102 to 113 °F; 312 to 318 K)
Boiling point 201 °C (394 °F; 474 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Fenchol or 1,3,3-trimethyl-2-norbornanol is a monoterpenoid and an isomer of borneol. It is a colorless or white solid. It occurs widely in nature.

The naturally occurring enantiomere (1R)-endo-(+)-fenchol is used extensively in perfumery. Fenchol gives basil its characteristic scent,[2][3] and comprises 15.9% of the volatile oils of some species of Aster.[4]

It is biosynthesized from geranyl pyrophosphate via isomerization to linalyl pyrophosphate.[5]

Oxidation of fenchol gives fenchone.


  1. ^ Datasheet at chemexper.com
  2. ^ "FES - (-)-endo-fenchol synthase, chloroplastic precursor - Ocimum basilicum (Sweet basil) - FES gene & protein". www.uniprot.org.
  3. ^ Kotan, Recep; Kordali, Saban; Cakir, Ahmet (August 2007). "Screening of antibacterial activities of twenty-one oxygenated monoterpenes". Zeitschrift für Naturforschung C. 62 (7–8): 507–513. doi:10.1515/znc-2007-7-808. PMID 17913064.
  4. ^ Matasyoh, Josphat C.; Kiplimo, Joyce J.; Karubiu, Nicholas M.; Hailstorks, Tiffany P. (2006). "Chemical composition and antimicrobial activity of essential oil of Tarchonanthus camphoratus". Food Chemistry. 101 (3): 1183–1187. doi:10.1016/j.foodchem.2006.03.021.
  5. ^ Satterwhite, D. M.; Wheeler, C. J.; Croteau, R. (15 November 1985). "Biosynthesis of monoterpenes. Enantioselectivity in the Enzymatic Cyclization of Linalyl Pyrophosphate to (-)-endo-Fenchol". The Journal of Biological Chemistry. 260 (26): 13901–8. doi:10.1016/S0021-9258(17)38661-1. PMID 4055764.

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