Distearyldimethylammonium chloride

Distearyldimethylammonium chloride (CAS 107-64-2, EC 203-508-2) is a dialkyl quaternary ammonium salt commercially available under trade names including KD 83, Talofloc, Aliquat 207, and Arquad R 40. It carries no assigned E-code. The compound is classified under HS code 29349990 for customs and trade purposes.

In hair conditioning formulations, the positively charged nitrogen head adsorbs onto negatively charged hair surfaces, reducing static and improving combability. In textile processing, it functions as a softening and lubricating agent by forming an oriented monolayer on fiber surfaces, reducing inter-fiber friction. It also stabilises oil-in-water emulsions in coatings and adhesive systems through electrostatic repulsion at the droplet interface.

The material is supplied as a light beige solid and is available in technical and cosmetic grades. It falls under REACH registration requirements for EU supply. Procurement teams should confirm grade specification against intended application, particularly for personal care use where regional cosmetic regulations apply.