Overview
DL-α-Tocopheryl Acetate is a synthetic derivative of vitamin E, widely recognized for its antioxidant properties. It is commonly used to stabilize products prone to oxidation, such as fats, oils, and cosmetic formulations. The 'DL-' prefix indicates the racemic mixture of stereoisomers, making it more cost-effective than natural vitamin E (D-α-tocopherol). This compound is favored in industrial applications due to its stability and ease of incorporation into various matrices. Unlike natural vitamin E, it is less prone to degradation under heat and light, making it suitable for processed foods and high-temperature manufacturing processes.
Physical and Chemical Properties
DL-α-Tocopheryl Acetate is a viscous liquid at room temperature, with a pale yellow to amber hue. Its molecular structure includes a chromanol ring and a phytyl side chain, esterified with acetic acid to enhance stability. The esterification process reduces its antioxidant activity until hydrolyzed in the body. Key chemical properties include its insolubility in water and high solubility in lipids and organic solvents. Its density ranges from 0.95 to 0.96 g/cm³, and it decomposes before reaching a boiling point. These traits make it ideal for lipid-based formulations, such as dietary supplements and topical creams.
Main Applications
In the food industry, DL-α-Tocopheryl Acetate is used as a preservative to extend shelf life by preventing lipid oxidation. It is added to edible oils, margarine, and processed snacks. The cosmetic industry incorporates it into skincare products for its moisturizing and anti-aging benefits. Pharmaceutical applications include its use in vitamin E supplements and topical ointments. Animal feed manufacturers add it to prevent nutrient degradation. Its versatility and safety profile make it a staple across multiple sectors, often replacing natural vitamin E in cost-sensitive applications.
Safety and Storage
DL-α-Tocopheryl Acetate is classified as non-toxic and is generally recognized as safe (GRAS) by regulatory bodies. However, prolonged exposure to concentrated forms may cause mild skin irritation. Proper handling includes using gloves and ensuring adequate ventilation. Storage requires protection from light, moisture, and high temperatures to prevent degradation. Ideal conditions include airtight containers in cool, dry environments below 25°C. Bulk procurement should prioritize UV-resistant packaging to maintain stability during transit and long-term storage.
B2B Procurement Guide
When sourcing DL-α-Tocopheryl Acetate, prioritize suppliers with certifications like USP (United States Pharmacopeia) or FCC (Food Chemicals Codex) to ensure quality. Key specifications to verify include purity (≥96%), peroxide value, and residual solvents. Price varies by quantity and purity, with bulk purchases (e.g., drums or totes) offering cost savings. Request samples to test compatibility with your formulation. For international shipments, confirm compliance with regional regulations (e.g., FDA, EFSA) and opt for temperature-controlled logistics if necessary.
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