Used as a key reagent in organic synthesis, particularly in peptide coupling and amide bond formation. It activates carboxylic acids by forming active esters, facilitating efficient coupling with amines under mild conditions. Commonly employed in pharmaceutical manufacturing and research for synthesizing bioactive molecules and peptides. Its high selectivity and stability make it suitable for use in complex multi-step reactions. Also utilized in the development of agrochemicals and fine chemicals where precise bond formation is critical.