Used as a key reagent in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in organic synthesis. Its primary application is in the preparation of biaryl compounds, which are important structural motifs in pharmaceuticals, agrochemicals, and functional materials. The presence of the m-tolyl group allows for selective coupling on meta-substituted aromatic systems, making it valuable in the synthesis of complex organic molecules with specific substitution patterns. It is also employed in the development of conjugated polymers and organic electronic materials due to its stability and reactivity under palladium-catalyzed conditions.