Used in organic synthesis as a building block for pharmaceuticals and agrochemicals, particularly in Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds. Its boronic acid group enables efficient coupling with aryl halides, making it valuable in the development of complex aromatic compounds. The presence of chlorine and ethoxy substituents allows for further functionalization or modulation of electronic properties in target molecules. Commonly applied in medicinal chemistry for constructing bioactive molecules and in materials science for designing organic semiconductors or functional polymers.