(S)-1-Benzylpyrrolidin-3-amine dihydrochloride is primarily used in the field of medicinal chemistry and pharmacology. It serves as a key intermediate in the synthesis of various biologically active compounds, particularly those targeting the central nervous system. This chemical is often utilized in the development of chiral molecules, which are crucial for creating enantiomerically pure drugs. Its structure makes it a valuable building block for designing ligands that interact with specific receptors, such as dopamine or serotonin receptors, which are important in treating neurological and psychiatric disorders. Additionally, it is employed in research to study the mechanisms of action of potential therapeutics and to optimize drug efficacy and selectivity.