Cetrimonium bromide, or cetrimide for short, is a chemical compound that's part of the quaternary ammonium group. This means it's got a nitrogen atom surrounded by four alkyl groups. In simpler terms, think of it as a cleaning and disinfecting agent that's super effective against bacteria and other germs. It's commonly found in products like shampoos, conditioners, and even in some antiseptic solutions used in healthcare.