Dodecylethyldimethylammonium Bromide丨CAS 68207-00-1

Dodecylethyldimethylammonium bromide (DEAB) is a cationic surfactant widely used in industrial, laboratory, and personal care applications. Its amphiphilic structure allows it to act as a detergent, emulsifier, and wetting agent in formulations such as disinfectants, fabric softeners, hair care products, and household cleaners. In microbiology and water treatment, it serves as a biocide due to its ability to disrupt microbial cell membranes, making it effective against bacteria, fungi, and some viruses. DEAB is also utilized in the preparation of antimicrobial coatings, as a phase-transfer catalyst in organic synthesis, and in the stabilization of emulsions in chemical and cosmetic formulations. Its compatibility with a range of solvents and surfactant systems makes it a versatile component in both research and industrial processes.

The main benefits of DEAB arise from its dual functionality as a surfactant and biocide. Its cationic quaternary ammonium group allows strong adsorption to negatively charged surfaces, providing excellent cleaning, emulsifying, and antimicrobial performance. DEAB effectively reduces surface tension, improves wetting, and stabilizes dispersions, enhancing the efficiency of formulations in personal care, industrial, and household products. Its antimicrobial activity helps prevent microbial contamination, extending product shelf life and improving hygiene. Additionally, DEAB is relatively stable, easy to handle, and compatible with a broad range of formulation ingredients, making it a reliable choice for multi-functional applications. Its controlled alkyl chain length balances hydrophobicity and solubility, allowing effective interaction with both lipophilic and hydrophilic components.