Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It plays a key role in the preparation of active ingredients in certain anti-inflammatory and analgesic drugs due to its ability to acylate amines and alcohols. Its chlorinated aromatic structure makes it valuable in constructing complex organic molecules where regioselectivity is important. The copper chip stabilization allows safer handling and storage by preventing decomposition during prolonged use. Commonly employed in research labs and industrial settings for peptide coupling and heterocyclic compound formation.