It:Eucalyptol

Some Facts About Eucalyptol

Eucalyptol is a cyclic ether, which is a natural organic compound.
It is the main component of the essential oil of some eucalyptus species (up to 90%).
It is a colourless liquid and has a fresh camphor-like aroma and a spicy, cooling taste.
It can be found in bay leaves, mugwort, sweet basil, wormwood, rosemary, sage and other aromatic plant foliage.
Fractional distillation of eucalyptus oil can produce large quantities of eucalyptol with a purity of 99.6-99.8%.
It is insoluble in water but miscible with ether, ethanol and chloroform.

Eucalyptol
Synonyms	1,8-cineol, limonene oxide, cajeputol, 1,8-epoxy-p-menthane, 1,8-oxido-p-menthane, eucalyptol, eucalyptole, 1,3,3-trimethyl-2-oxabicyclo[2,2,2]octane, cineol, cineole.
CAS No.	470-82-6
Molecular formula	C₁₀H₁₈O
Molecular Weight	154.249 g/mol
Melting Point	1.5 °C ( 274.66 K)
Boiling Point	176 - 177 °C (449 - 450 K)
Density	0.9225 g/cm3
Refractive Index	1.458
Smiles	CC12CCC(CC1)C(C)(C)O2
MSDS

Eucalyptol

Due to it's plesant, spicy aroma and taste, eucalyptol is a frequent ingredient of the following products:

It is also used in aromatherapy and dentistry.

Evidence has shown that eucalyptol can reduce inflammation and pain.
It is also capable of killing leukaemia cells.
It relaxes bronchial and vascular smooth muscle and enhances blood circulation.
Prolonged exposure to eucalyptol (inhalation) increases cerebral blood flow.
It is used to treat bronchitis, sinusitis and chronic rhinitis as well as asthma.
It helps to increase penetration of medicinal drugs.
It reduces heart rate by a parasympathetic-dependent action and induces hypotension by a direct vasorelaxation.
It can be used as a nasal decongestant and anticough agent

M.C.M.S. Soares, C.E.N. Damiani, C.M. Moreira, I. Stefanon, D.V. Vassallo; Braz J Med Biol Res, March 2005, Volume 38(3) 453-461

Adams, J., Belley, M., Tetrahedron Letters, 27 (19), 2075-2078, 1986.