Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules. 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 fluorinated compounds to enhance metabolic stability and binding affinity in drug candidates. Also utilized in agrochemical synthesis for creating herbicides and pesticides due to its halogenated aromatic structure, which can improve environmental persistence and target specificity.