N,N,N-Trimethyloctan-1-aminium chloride is a quaternary ammonium salt composed of a positively charged N,N,N-trimethyloctan-1-aminium cation and a negatively charged chloride anion. This compound is widely used as a surfactant and emulsifier in various applications such as detergents, fabric softeners, and personal care products. Additionally, it serves as a phase transfer catalyst in organic chemical reactions, enhancing the transfer of reactants between immiscible phases. It also possesses antibacterial properties, making it useful as a disinfectant or preservative in certain products.