Decyldimethyloctylammonium chloride

Decyldimethyloctylammonium chloride (CAS 32426-11-2, EC 251-035-5) is a quaternary ammonium compound commercially known under trade names including BTC 818, Bardac 2050, and Quaternium-24. It carries no assigned E-code and belongs to the dialkyl dimethyl ammonium chloride class of cationic surfactants.

In water treatment, it disrupts microbial cell membranes at low concentrations, making it effective for controlling biofilm formation in cooling towers and process water systems. In industrial and institutional cleaning formulations, it functions as both a disinfecting agent and a surface-active cleaner, delivering simultaneous degreasing and sanitising action on hard surfaces.

This material is supplied as a sticky solid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm SDS compliance with EU CLP regulation and verify supplier registration status before sourcing. Packaging formats and available grades should be confirmed directly with the supplier.