3d image of alpha-tocopherol skeletal formula

alpha-tocopherol a-tocopherol vitamin e307 number tocopherol tocotrienol chromane ring radicals lipoprotein lipid homeostasis stereoisomer stereocenter chiral deficiency nerve problems cell membranes cardiovascular diseases cancer dementia dietary supplement multivitamin skin lipid-soluble antioxidant radical ascorbate retinol ubiquinol synthesis biosynthesis biological activity bioactive nutrient prescription drug food additive nutraceutica dietary vitamin anti-cancer anti-aging healthy aging herbal medicine molecule molecular 3d