Natural Brown Camphor Oil- 100% PURE and NATUREBrown Camphor Oil quality are good and guaranteed.Product detail:1. Appearance: Light yellow to Brown liquid2. Odour: Special aroma of Camphor3. Relative density: 0.900 0.9354. Refractive index: 1.460 1.4805. Optical rotation: 10 356. Solubility: 1ml soluble in 3ml 70% ethanol7. Acid value: 3.6(mgkOH/g)8. Content contain camphor, cineole, linalool, terpene, . Etc