The main components of the stems oil were nonacosane (23.26%), heptacosane (22.48%), hentriacontane (18.32%), octacosane (3.42%), triacontane (2.24%) and squalene (2.07%).,-damascenone, trans-,-ionone, 6,10,14- trimethyl-2-pentadecanone,
docosane, tricosane, tetracosane, hexacosane, heptacosane, octacosane, squalene, nonacosane, triacontane and hentriacontane were common chemical constituents of essential oils.