Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases, particularly in the production of pharmaceuticals and fine chemicals. It is effective in enhancing the rate of reactions involving nucleophilic substitutions and alkylations. Additionally, it is employed in the synthesis of complex organic molecules, where it helps in the efficient transfer of reactants across phase boundaries, improving yield and selectivity. Its application is also seen in polymer chemistry, where it aids in the polymerization processes, contributing to the development of specialized polymers with desired properties.