Used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds. It serves as a key building block in the preparation of pharmaceuticals, agrochemicals, and functional materials. Its boronic acid group enables efficient coupling with aryl or vinyl halides under palladium catalysis, making it valuable in drug discovery and development of conjugated systems for electronic materials. The chloro and methyl substituents provide additional reactivity and structural diversity for further functionalization.