essential oil composition of tanacetum chiliophyllum var. oligocephalum from iran

background & aim: the genus tanacetum l. belongs to the family asteraceae and tribe anthemideae. according to the recent findings the number of tanacetum species in iran is 36, of which 12 are endemic. in this study the essential oil composition of tanacetum chiliophyllum var. oligocephalum was investigated for the first time.   experimental: the plant was collected during flowering stage from west azerbaijan province of iran, naghadeh. the essential oil was isolated by hydrodistillation and analyzed by gc-fid and gc-ms.  results & discussion: the oil with the yield of 0.5% (w/w) based on the dry weight of plant was analyzed by gc-fid and gc-ms and identified. twenty-seven components were identified representing 99.7% of the total essential oil. 1,8-cineole (28.8%), camphor (12.8%), santolina alcohol (11.7%) and linalool (7.1%) were determined as major compounds. recommended applications/industries: different members of the genus tanacetum have compounds with high medicinal value. essential oil of the studied species with respect to the high amount of 1,8-cineole, camphor and linalool can be considered as a natural source of these valuable medicinal compounds.