Vitamin E, scientifically identified as alpha-Tocopherol with CAS number 59-02-9, is a critical fat-soluble compound recognized for its potent antioxidant properties and essential role in human and animal health. For B2B buyers, understanding its characteristics and applications is key to effective sourcing and formulation.

Chemically, alpha-Tocopherol is a viscous, yellowish to brownish-red liquid. Its molecular formula is C29H50O2, and its molecular weight is approximately 430.71 g/mol. It is soluble in organic solvents like ethanol, acetone, and oils but virtually insoluble in water. This fat-soluble nature dictates its absorption and function within biological systems, particularly in cell membranes.

The primary biological function of Vitamin E is its role as a powerful antioxidant. It scavenges free radicals, thereby protecting cellular structures, including DNA and cell membranes, from oxidative damage. This protective mechanism is vital in preventing various chronic diseases, supporting immune function, and maintaining skin health. Its antioxidant activity also makes it invaluable in extending the shelf-life of products by preventing lipid peroxidation.

B2B applications for Vitamin E are diverse and span multiple industries. In the pharmaceutical sector, it is used as an active pharmaceutical ingredient (API) in supplements, therapeutic formulations, and as a stabilizing agent for other active compounds. The cosmetic industry utilizes Vitamin E extensively in skincare products, including moisturizers, sunscreens, anti-aging creams, and hair care, owing to its antioxidant, moisturizing, and protective qualities.

The food and beverage industry incorporates Vitamin E as a natural antioxidant to prevent spoilage and rancidity in products containing fats and oils, such as cooking oils, baked goods, and processed foods. It is also used in animal feed to enhance health, immunity, and productivity in livestock and poultry.

For procurement managers and R&D scientists, sourcing Vitamin E requires careful consideration of purity, isomer form, and supplier reliability. Manufacturers often offer alpha-Tocopherol with purity levels exceeding 95% or even 99%, with specific emphasis on the naturally occurring R,R,R stereoisomer. When looking to buy Vitamin E, it's essential to partner with manufacturers and suppliers who can provide consistent quality, competitive pricing, and timely delivery to meet industrial demands.

In conclusion, Vitamin E (CAS 59-02-9) is a fundamental ingredient with wide-ranging applications driven by its potent antioxidant capabilities. Understanding its properties and the importance of sourcing from reputable suppliers is crucial for businesses aiming to leverage its benefits in pharmaceuticals, cosmetics, food, and animal nutrition.