Used as a key reagent in organic synthesis, particularly in the preparation of pyrazole derivatives which are important in pharmaceutical and agrochemical industries. It serves as an activating agent for introducing the pyrazole ring into larger molecules, enabling the formation of amides, esters, and other functionalized compounds. Its reactivity makes it valuable in the synthesis of active pharmaceutical ingredients (APIs), including drugs with anti-inflammatory, analgesic, and antipyretic properties. Also employed in the development of crop protection agents due to the biological activity associated with pyrazole scaffolds.