Tetradecanedioic acid

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

Where is Tetradecanedioic acid used?

• Personal care: conditioning and surface-modifying agent in skin and hair products, improving texture and film-forming performance
• Lubricants: base component or additive in metalworking fluids and specialty greases
• Food: acidulant or processing aid in regulated formulations where long-chain diacids are permitted
• Polyamide and polyester synthesis: building block whose C14 backbone influences flexibility and melting profile
• Its bifunctional acid structure enables surface modification, emulsification, and lubrication.

Commercial specifications

• Purity grades typically 98% to 99% or higher
• Documentation available to support regulatory submissions in food and cosmetic markets