1-Dodecylpyridin-1-ium chloride hydrate is widely used as a surfactant in various industrial and laboratory applications. It plays a crucial role in enhancing the solubility of hydrophobic substances in aqueous solutions, making it valuable in formulations for detergents, cleaning agents, and emulsifiers. In the field of biochemistry, it is utilized to stabilize proteins and nucleic acids during extraction and purification processes. Additionally, it finds application in the synthesis of nanoparticles, where it acts as a stabilizing agent to control particle size and prevent aggregation. Its antimicrobial properties also make it suitable for use in disinfectants and preservatives.