Tetradecanedioic acid

Tetradecanedioic acid (CAS 821-38-5), also known as Dodecamethylenedicarboxylic acid, is a long-chain dicarboxylic acid used across personal care, food, and industrial formulation.

Its bifunctional acid structure enables surface modification, emulsification, and lubrication in demanding applications. In personal care formulations, it functions as a conditioning and surface-modifying agent.

It is used in skin and hair products to improve texture and film-forming performance. Lubricant formulators incorporate it as a base component or additive in metalworking fluids and specialty greases.

The specific chain length contributes to film durability under load. Food-grade applications include its use as an acidulant or processing aid in regulated formulations where long-chain diacids are permitted.

It also serves as a building block in polyamide and polyester synthesis. The C14 backbone influences the flexibility and melting profile of the resulting polymer during the manufacturing process.

Tetradecanedioic acid is supplied as a white crystalline powder or fine granules. It is available in technical and food-grade specifications, with material compliant with FCC standards.

Purity grades typically range from 98% to 99% or higher. Documentation is available to support regulatory submissions in food and cosmetic markets to ensure full compliance with safety protocols.