Tetrabutylammonium tetrafluoroborate is an inorganic salt widely employed in organic synthesis reactions and electrochemical applications. It serves as a catalyst or reagent in organic synthesis, including fluorination reactions, olefin addition, and cyclization. Additionally, it is utilized in electrochemical deposition and electroplating and is significant in some electronic devices. While it lacks direct application in medicine, it plays a crucial role in chemical research and industrial production.