Used primarily as an intermediate in organic synthesis, it plays a crucial role in the production of various pharmaceuticals and agrochemicals. Its reactive carbonyl chloride group allows for the formation of amides, esters, and other derivatives, making it valuable in the development of active pharmaceutical ingredients (APIs). It is particularly significant in the synthesis of compounds with potential anti-inflammatory, antimicrobial, or pesticidal properties. Additionally, its structural features make it suitable for research and development in medicinal chemistry, where it aids in the creation of novel drug candidates.