Used as a coupling reagent in peptide synthesis, facilitating the formation of amide bonds between amino acids. It is particularly effective in solid-phase peptide synthesis, enabling the production of complex peptides with high efficiency and minimal side reactions. The reagent is also employed in the synthesis of other organic compounds, such as esters and amides, due to its ability to activate carboxylic acids. Its application extends to the preparation of pharmaceuticals, where it aids in the creation of active pharmaceutical ingredients with precise molecular structures. Additionally, it is utilized in bioconjugation techniques, linking biomolecules for research and diagnostic purposes.