N,N-Dimethyloctadecylamine

N,N-Dimethyloctadecylamine (CAS 124-28-7) is a long-chain tertiary amine derived from stearic acid, commercially available under trade names including Dimantine, Dymanthine, and Armeen DM 18D. It carries no assigned E-code. The compound belongs to the fatty amine class and is registered under EC number 204-694-8.

In personal care formulations, it functions as a conditioning agent and emulsifier by adsorbing onto negatively charged hair and skin surfaces through its cationic nitrogen centre, reducing friction and improving spreadability. In metalworking and lubricant systems, it acts as a boundary lubricant and antistatic additive, forming a protective monolayer on metal surfaces that reduces wear and dissipates static charge.

The material is supplied as a solid that liquefies upon gentle heating, with industrial-grade product available in drum and IBC packaging. It is registered under REACH and classified under HS code 29211999. Procurement teams should confirm grade specification and SDS documentation prior to ordering.