It is used in surface chemistry nanoparticle synthesis emulsification processes antimicrobial formulations and as a structure-directing agent in materials research.

Its primary purpose is to reduce surface tension and facilitate interactions between different phases while also providing antimicrobial and stabilizing properties in various chemical systems.

Cetyldimethylethylammonium bromide is a cationic surfactant and quaternary ammonium salt composed of a long hydrophobic alkyl chain and a positively charged ammonium head group.