(S)-2-(Pyrrolidin-2-yl)pyridine dihydrochloride is primarily used in the field of medicinal chemistry as a chiral building block for the synthesis of various pharmaceutical compounds. Its structure makes it a valuable intermediate in the development of drugs targeting the central nervous system, particularly for neurological disorders. It is often employed in the preparation of ligands for nicotinic acetylcholine receptors, which play a key role in cognitive functions and addiction pathways. Additionally, this compound is utilized in research to study stereochemistry and enantioselective synthesis, contributing to the development of more effective and targeted therapeutics. Its application extends to the synthesis of potential anticancer agents and other bioactive molecules, highlighting its versatility in drug discovery and development.