Used as a fluoride source in organic synthesis, particularly in reactions requiring mild and selective fluorination. It serves as a stable reagent for introducing fluorine into pharmaceutical intermediates and fine chemicals. Its choline-based structure enhances solubility in polar solvents, making it suitable for solution-phase synthesis. Commonly applied in the development of fluorinated drugs and radiopharmaceuticals where controlled fluoride release is essential. Also utilized in electrochemical applications involving fluoride ion conduction.