N-Boc-2-chloroethylamine is widely used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive compounds. Its Boc-protected amine group allows for selective deprotection, making it valuable in peptide synthesis and the development of amine-containing molecules. The chloroethyl moiety serves as a reactive site for further functionalization, enabling the creation of complex structures. It is commonly employed in the synthesis of anticancer agents, enzyme inhibitors, and other therapeutic molecules. Additionally, its stability and reactivity make it a useful building block in medicinal chemistry research for designing and optimizing drug candidates.