Cetyl bromide

Cetyl bromide (CAS 112-82-3, EC 204-008-7) is a long-chain alkyl bromide derived from palmitic acid, also known commercially as palmityl bromide or hexadecylbromid. It carries no assigned E-code and is catalogued under HS code 29033036. The compound is recognised in chemical literature under the reference name NSC 4193.

In polymer stabilisation, cetyl bromide functions as a heat stabiliser by interrupting oxidative degradation chains in PVC and related plastics processing. In personal care formulations, its C16 alkyl chain provides substantivity to hair conditioning systems, improving surface adhesion of active ingredients. It also serves as an antimicrobial intermediate in the synthesis of quaternary ammonium biocides.

Cetyl bromide is supplied under REACH compliance for the European market and is available in technical grade. Standard packaging includes drums and intermediate bulk containers. Buyers should confirm purity specifications and SDS documentation prior to procurement, as grade requirements vary across polymer, lubricant, and cosmetic applications.