Used primarily as an intermediate in the synthesis of pharmaceuticals, especially in the production of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules. Its fluorinated aromatic structure enhances metabolic stability and binding affinity in drug candidates. It is also employed in the preparation of agrochemicals and specialty polymers where fluorine substitution improves performance characteristics such as thermal stability and resistance to degradation. The acyl chloride group allows for easy incorporation into larger molecules through amide or ester bond formation, making it valuable in medicinal chemistry and process development.