delta-tocopherol

Delta-tocopherol (CAS 119-13-1), listed as E309, is a naturally occurring member of the vitamin E family sourced primarily from vegetable oils. It functions as an antioxidant in food, feed, cosmetic, and pharmaceutical formulations.

This compound protects lipid-containing products from oxidative degradation. Compared to alpha-tocopherol, its stronger antioxidant activity in certain lipid matrices makes it a preferred choice for formulators targeting oxidative stability.

In food manufacturing, E309 is used to extend the shelf life of oils, fats, and fat-containing products by inhibiting rancidity. Animal feed producers incorporate it to preserve the oxidative quality of feed ingredients.

This additive supports antioxidant status in livestock nutrition. Cosmetic formulators use it in skin creams, serums, and hair care products where lipid oxidation would otherwise compromise product stability and shelf life.

Pharmaceutical manufacturers apply it as an antioxidant excipient in oil-based drug delivery systems and softgel formulations. Delta-tocopherol is supplied as a viscous oil, typically in concentrated or mixed tocopherol extract form.

It is available in food-grade and feed-grade specifications, with some suppliers offering material compliant with FCC or Ph. Eur. standards. Bulk supply is standard in drums or IBC containers.

Concentration levels vary depending on the source material and extraction process. This versatile antioxidant remains a critical component for maintaining the integrity of high-fat formulations across multiple industrial sectors.