Used in organic synthesis as a building block for pharmaceuticals, particularly in the development of neuroactive compounds. Serves as a precursor in the preparation of gamma-aminobutyric acid (GABA) analogs, which are important in treating neurological disorders such as epilepsy and neuropathic pain. Also utilized in research settings for studying amino acid transport and metabolism. Its hydrochloride salt form enhances solubility and stability, making it suitable for use in aqueous reaction systems and biological assays.