Didecyldimethylammonium bromide is widely used as a disinfectant and sanitizer in various industries due to its strong antimicrobial properties. It is effective against a broad spectrum of microorganisms, including bacteria, viruses, and fungi, making it suitable for use in healthcare settings, food processing facilities, and public spaces. The compound is often incorporated into cleaning products, such as surface disinfectants, wipes, and sprays, to ensure hygiene and prevent the spread of infections. Additionally, it is utilized in water treatment processes to control microbial growth in industrial and recreational water systems. Its ability to act as a biocide also makes it valuable in agricultural applications, where it is used to sanitize equipment and protect crops from microbial contamination.