We 12 yrs experiance in this feild and we give most important for quality product supply. All are 100% adv for supply the goods as your required method and ***** TEST TEST DATA SPECIFICATION1 COLOUR AND APPEARANCE colourless clear liquid2 GLC PURITY alpha pin 17.05% c-oI27.19% cam21.42%3 REFRACTIVE INDEX 1.467545 , 1.4640 - 1.4760 @25 DC4 SPECIFIC GRAVITY 0.9035 0.8900 - 0.9120 @ 25 DC5 OPTICAL ROTATION + 14 D -20Dto+10D6 OLFACTORY..Rosemary Oil Spec