Pinus strobus
It belongs to the abietane diterpene group of organic compounds derived from four isoprene units. It is used in lacquers, varnishes, and soaps, and for the analysis of resins and the preparation of metal resinates. It is found in "Pinus insularis" (Khasi Pine), "Pinus kesiya" Royle, "Pinus strobus" (Eastern White Pine), and "Pinus sylvestris" (Scots Pine).