Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It plays a key role in the production of certain local anesthetics and antiarrhythmic drugs due to its ability to form amide bonds in complex molecules. Its acetyl and chloro functional groups allow for selective reactions in multi-step organic syntheses. Also employed in the development of specialty polymers where controlled reactivity is required. Limited use in dye manufacturing due to its reactivity profile.