Used as an intermediate in the synthesis of nylon-6, this compound plays a key role in polymer chemistry by providing a reactive amino ester functionality that facilitates ring-opening polymerization. It is also employed in the preparation of specialty polyamides and bio-based plastics, where controlled molecular weight and end-group modification are required. Additionally, it serves as a building block in pharmaceutical synthesis, particularly in the development of peptide-like structures and heterocyclic compounds. Its hydrochloride salt form enhances stability and solubility during storage and reaction processes.