Used as a phase transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases, such as aqueous and organic layers. It is particularly effective in nucleophilic substitution reactions, where it enhances the transfer of anions into the organic phase.

In the production of pharmaceuticals, it aids in the synthesis of complex molecules by improving reaction efficiency and selectivity. It is also employed in the preparation of specialty chemicals, where precise control over reaction conditions is crucial.

Additionally, it serves as a base in various chemical reactions, including esterifications and hydrolyses, due to its strong alkaline nature. In analytical chemistry, it is used as a titrant in non-aqueous titrations to determine the concentration of acidic substances.

Its role in the manufacture of electronic materials, such as liquid crystals and semiconductors, is notable, where it helps in the purification and synthesis of high-purity compounds.