1School of Pharmacy, Shaheed Beheshti University of Medical Science, P.O. Box 14155-6153, Tehran, I.R. IRAN
2Department of Chemistry, science & Research Campus, Islamic Azad University, P.O. Box 14515-775, Tehran, I.R. IRAN
The water-distilled essential oil from dried aerial parts of achillea tenuifolia Lam. Was analysed by GC and CG/MS. 48 Components were characterized representing 88% of the total oil. Camphor (18%), 1,8-cineole + limonene (9%) and spathulenol (7%) were the major constituents of the oil obtained in a yield of 0.23%.