Pure Olibanum oil,Frankincense Oil,Frankincense essential Oil,CAS 8016-36-2 Pure Olibanum oil,Frankincense Oil,Frankincense essential Oil,CAS 8016-36-2 Color: colorless to pale yellow.Relative density: 0.862 ~ 0.889Index: 1.465 ~ 1.482Optical rotation of -15 ~ +35 (25 °C)Acid value ≤ 4.0The main ingredients are: dipentene, pine wood, camphor, allyl ester isopropyl toluene,Verbenone , verbenol etc ...