Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of antidepressants and other central nervous system agents. Its structure allows for modification to enhance bioavailability and receptor selectivity. Commonly employed in research settings to explore structure-activity relationships in phenylalkylamine derivatives. Also utilized in the preparation of chiral building blocks for asymmetric synthesis. Limited to laboratory and industrial use due to its role as a precursor rather than a final active ingredient.