Used primarily as a key intermediate in the synthesis of pharmaceuticals and fine chemicals. Its reactive acyl chloride group allows for easy formation of amide and ester derivatives, making it valuable in drug development. Commonly employed in the preparation of psychoactive compounds and research chemicals, particularly those related to substituted phenethylamines and amphetamines. Also utilized in organic synthesis for introducing the benzo[1,3]dioxol-5-yl acetyl moiety into larger molecules, enhancing structural complexity for biological activity studies. Handle with care due to its moisture sensitivity and potential lachrymatory effects.