Didecylmethylamine

Didecylmethylamine (CAS 7396-58-9, EC 230-990-1, formula C21H45N) is a tertiary aliphatic amine supplied under trade names including MA1010, DAMA-10, DAMA 1010, Armeen M 210D, and Radiamine 6310. It carries no assigned E-code and is classified within the fatty amine category.

In water treatment, didecylmethylamine functions as a biocide precursor, reacting with acids or alkylating agents to form quaternary ammonium compounds that disrupt microbial cell membranes. In textile and leather processing, it acts as an emulsifier by orienting its hydrophilic amine head and hydrophobic alkyl tails at oil-water interfaces, stabilising process baths and improving substrate penetration.

Didecylmethylamine is supplied as a clear liquid and is subject to REACH registration requirements within the EU. Procurement teams should confirm supplier SDS documentation and substance registration status before import. Standard packaging formats for industrial grades typically include drums and intermediate bulk containers.