Natural Vitamin E Cas No.: 59-02-9;30999-06-5;1406-18-4;121854-78-2 is typically supplied as powder or oil (depending on the product), white to light yellow in appearance. Store in a cool, dry, sealed place; shelf life is 24 months. Batch-specific COA and specification sheets (assay, heavy metals, microbiological limits) are available upon request from Rishon Biochem.