Used as a catalyst or reagent in organic synthesis, particularly in cross-coupling reactions such as the Suzuki-Miyaura reaction, where it helps facilitate the formation of carbon-carbon bonds. It is valued for its high solubility in polar solvents and its ability to act as a mild base, making it suitable for sensitive substrates. Also employed in the preparation of other cesium salts and in certain condensation reactions. Its low nucleophilicity and good leaving group properties enhance its utility in nucleophilic substitution reactions. Additionally, it finds use in analytical chemistry and in the development of pharmaceutical intermediates.