Used as a base and catalyst in organic synthesis, particularly in coupling reactions such as the Suzuki and Heck reactions. Enhances reactivity in nucleophilic substitutions due to high solubility in polar solvents. Employed in the production of liquid crystal displays (LCDs) and semiconductor materials. Acts as a precursor in the synthesis of cesium-containing compounds for use in photovoltaics and optical glasses. Also utilized in specialized laboratory applications requiring a strong, mild base with good solubility characteristics.