N-Boc-1,6-hexanediamine hydrochloride is widely used in organic synthesis as a protected diamine intermediate. It is particularly valuable in peptide chemistry, where the Boc (tert-butoxycarbonyl) group serves as a protective group for the amine functionality, allowing selective reactions to occur at other sites. This compound is also employed in the preparation of polyamides, polyurethanes, and other polymers, where it acts as a building block to introduce hexane chains into the polymer backbone. Additionally, it finds applications in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals, where its dual amine functionality is essential for creating complex molecular structures. The hydrochloride form enhances its stability and solubility, making it easier to handle in various chemical processes.