Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs). Its reactive acyl chloride group enables it to form amide and ester bonds, making it valuable in constructing complex organic molecules. Commonly employed in agrochemical synthesis for developing herbicides and pesticides due to its ability to introduce halogenated aromatic structures. Also utilized in the preparation of specialty polymers and liquid crystals where specific polarity and stability are required. Handling requires caution due to its moisture sensitivity and potential to cause irritation upon contact.