“…Also, methyl acetate, iso-neomenthol, isomenthone and α-pinene have been reported as the most important constitutes. [7][8][9][10][11][12] Based on knowledge of author, in comparison to many other pharmaceutical-industrial plants, there is a very little data about chemical composition and antibacterial activity of Z. clinopodioides essential oil collected from Kermanshah province, west of Iran. Hence, the aim of the current study was (i): determination of chemical composition of its hydro-distilled essential oil obtained from Gilan Gharb city, Kermanshah province, west of…”