(1S)-1-(5-Chloropyridin-2-yl)ethan-1-amine dihydrochloride is primarily used in the field of medicinal chemistry and pharmaceutical research. It serves as a key intermediate in the synthesis of various biologically active compounds, particularly those targeting the central nervous system. The compound's chiral structure makes it valuable in the development of enantiomerically pure drugs, which are often more effective and have fewer side effects. It is also utilized in the study of receptor-ligand interactions, aiding in the design of new therapeutic agents for neurological disorders. Additionally, its derivatives are explored for potential applications in treating conditions like depression, anxiety, and other mental health disorders due to its interaction with specific neurotransmitter systems.