Used as a phase transfer catalyst in organic synthesis, facilitating reactions between reactants in different phases, such as aqueous and organic. It enhances the efficiency of nucleophilic substitution, esterification, and polymerization reactions. Commonly applied in the production of pharmaceuticals, agrochemicals, and specialty chemicals. Also employed in the synthesis of polymers and as a stabilizer in certain industrial processes. Its ability to transfer ions across phase boundaries makes it valuable in various chemical manufacturing processes.