Boron trifluoride dihydrate is widely used as a catalyst in various organic synthesis reactions. It is particularly effective in promoting polymerization processes, such as the production of polyols and resins. In the pharmaceutical industry, it serves as a reagent for the synthesis of complex molecules, including active pharmaceutical ingredients. Additionally, it is employed in the preparation of boron-containing compounds, which are essential in materials science and electronics. Its ability to act as a Lewis acid makes it valuable in esterification and alkylation reactions, enhancing reaction efficiency and selectivity.