N,N-Diethyl-N-methylethanaminium tetrafluoroborate is a quaternary ammonium compound classified under alkylammonium salts. It is commonly used as a phase-transfer catalyst in organic synthesis, facilitating the transfer of reactants between immiscible phases. Additionally, it serves as an electrolyte in electrochemical devices and as a surfactant in detergent formulations. Its distinctive chemical properties make it a valuable component in various industrial applications, including pharmaceuticals, agrochemicals, and materials science.