Dodecyl gallate

File:Dodecyl gallate Structural Formula V2.svg

Dodecyl gallate Structural Formula V2

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Dodecyl gallate 3D spacefill

Dodecyl gallate is an organic compound that is classified as an ester of gallic acid and dodecanol. It is commonly used as an antioxidant in the food industry and in cosmetics to prevent rancidity and oxidation.

Chemical Structure and Properties

Dodecyl gallate has the chemical formula C₁₉H₃₀O₅. It is a white to slightly yellowish powder that is soluble in oils and organic solvents but has limited solubility in water. The compound consists of a gallic acid moiety esterified with a dodecyl (lauryl) alcohol chain.

Synthesis

Dodecyl gallate is synthesized through the esterification of gallic acid with dodecanol. This reaction typically involves the use of an acid catalyst to facilitate the formation of the ester bond.

Applications

Food Industry

In the food industry, dodecyl gallate is used as an antioxidant to extend the shelf life of products by preventing the oxidation of fats and oils. It is often added to edible oils, margarine, and butter.

Cosmetics

Dodecyl gallate is also used in cosmetics and personal care products for its antioxidant properties. It helps to stabilize formulations and prevent the degradation of active ingredients.

Safety and Regulation

Dodecyl gallate is generally recognized as safe (GRAS) by regulatory agencies when used in accordance with good manufacturing practices. However, it is important to adhere to specified usage limits to avoid potential adverse effects.

Related Compounds

• Propyl gallate
• Octyl gallate
• Gallic acid

See Also

• Antioxidant
• Esterification
• Food additive
• Cosmetic chemistry

External Links

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