... oil,Base oil,medical oil,food additive oil,CAS No.90028-66-3. Efamol,Evening primrose oil,Carrier oil,Base oil ... ,food additive oil,spice oil,CAS No.90028-66-3Function ... : with a characteristic evening primrose aroma 3. Relative density: 0.9212~0.9301 4. Refractive index: 1.4742~1.4796 ... oil,Base oil,medical oil,food additive oil,CAS No.90028-66-3