Azelaic acid

Azelaic acid (CAS 123-99-9) is a straight-chain dicarboxylic acid derived from natural fatty acids, commercially available under trade names including Emery 1110, Emerox 1144, and Anchoic acid. It carries no E-code designation and is classified under HS code 29171390 for customs and trade purposes.

In personal care formulations, azelaic acid functions as a pH buffer and emulsion stabilizer by moderating acid-base equilibria within the system, helping maintain consistency across temperature fluctuations. In polymer and lubricant applications, it acts as a reactive intermediate and catalyst, facilitating esterification reactions to produce plasticizers and synthetic lubricant base stocks.

Azelaic acid is supplied in powder and flake grades, with quality standards available to meet REACH compliance requirements for European markets. Procurement teams should confirm grade specification against intended application, as purity thresholds differ between cosmetic and industrial end uses.