1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane Bis(tetrafluoroborate CAS 140681-55-6 is a popular fluorinating reagent used in various fields including organic synthesis, medicinal chemistry, and material science. It's versatility in introducing fluorine atoms into organic molecules makes it a valuable tool in the synthesis of fluorinated compounds with diverse applications in research and industry.