Used primarily as a reagent in organic synthesis, particularly in peptide and amino acid chemistry. It helps in the protection of functional groups such as amines by forming carbamate derivatives, which are stable under various reaction conditions but can be removed selectively when needed. Commonly employed in the preparation of active esters for coupling reactions, it facilitates the formation of amide bonds without racemization, making it valuable in solid-phase peptide synthesis. Also utilized in the production of pharmaceuticals and fine chemicals where controlled reactivity and selective transformations are required. Its volatility and reactivity demand careful handling, but its efficiency in introducing protecting groups makes it a preferred choice in complex molecule assembly.