Used as an intermediate in the synthesis of pharmaceuticals and fine chemicals, particularly in the development of nonsteroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules. Its structure allows for further functionalization, making it valuable in constructing complex organic compounds. Commonly employed in coupling reactions and the preparation of heterocyclic systems due to the presence of carboxylic acid groups and halogen substituent, which facilitate bond formation in multi-step syntheses. Also utilized in the production of specialty polymers and ligands for metal catalysts in industrial and research applications.