Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its reactive acyl chloride group allows for easy formation of amide and ester derivatives, making it valuable in constructing complex organic molecules. Commonly employed in the development of herbicides and fungicides due to the presence of halogen atoms that can enhance biological activity. Also utilized in the preparation of dyes and functional materials where halogenated aromatic structures are required. Its dual halogen functionality enables selective cross-coupling reactions, useful in fine chemical and medicinal chemistry research.