(R)-1-Phenylprop-2-en-1-amine hydrochloride is primarily used in the field of organic synthesis, particularly in the production of chiral compounds. Its role as a chiral building block is crucial in the development of pharmaceuticals, where enantiomeric purity is essential for drug efficacy and safety. This compound is often employed in asymmetric synthesis to create intermediates for active pharmaceutical ingredients (APIs) that target specific biological pathways. Additionally, it finds application in the synthesis of fine chemicals and agrochemicals, where its stereochemistry can influence the biological activity of the final product. Researchers also utilize it in the study of stereoselective reactions, aiding in the advancement of synthetic methodologies.