Used as a specialized reagent in organic synthesis, particularly for controlled chlorination and boron-based catalytic reactions. Its complex structure enhances selectivity in electrophilic substitution processes. Commonly applied in the preparation of boron-containing intermediates for pharmaceuticals and agrochemicals. Also serves as a chlorine transfer agent in the synthesis of functionalized organosulfur compounds. The methyl sulfide ligand stabilizes the boron center, allowing safer handling and improved reaction efficiency under mild conditions.