Analysis and identification of the essential oil of"dracocephalum kotschi"

Increasing importance of pharmaceutical plants in the world and the presence of many of these plants in our country, which has one of the richest Flora of the world, suggest the need for comprehensive studies. Research of secondary metabolites of medicinal and essential oily plants from Iran’s dry to super dry deserts is very important. One of the most famous species from “Labiatae” family is Dracocephalum kotschyi. It is known locally by the name “Zaringiah” which is a perennial herb and is grown in different parts of ratherbase rocky slopes of Kashan area. The essential oil of the plant was taken by hydro-distillation and was surveyed and examined by means of Gas chromatography-Mass spectrometery instruments. Some of the important components have been interpreted by using the Kovats Index. Fragmentation of the components from Mass spectra and G.C chromatogram, which will be discussed.