Faezeh Keshavarz - Department of Phytochemistry, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Mohammad Hossein Farjam - Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran

Citrulluscolocynthis (Bitter cucumber) belongs to thefamily of cucurbitaceae, which areabundantly grownalong the arid soils of Southeast coast of Khalij-e-Fars in Iran. Ithas a large,fleshy perennial root, which sends out slender,tough, angular, scabrid vine-likestems.Hydrodistillation of the aerial parts of the plant yielded ۰.۳۷ v/w of oil. The oil wassubjected to GC and GC–MS analyses. Identification of all components was performed by acomparison of their mass spectra with literature data (NIST and WILEY) and by comparison oftheir retention indices (RI) with those in the literature [۱, ۲]. Thirty five constituents includingthe Jasmal (۱۸.۶۱.۹%), and green leaf volatile derivatives; Cinnamaldehydephenylhydrazone(۱۰.۵۲%), Butylidenephthalide (۵.۲۵%) and trans-Chrysanthenyl Acetate (۲.۴۹%) were the majorcomponents of the oil.