(S)-1-(Pyridin-3-yl)ethanamine is a chiral amine compound featuring a pyridine ring and an ethylamine side chain with an (S)-configuration. It is a clear to pale yellow liquid with a molecular formula of C7H10N2 and a molecular weight of 122.17 g/mol. This compound is a valuable chiral building block in organic synthesis. Its primary and most significant application is as a key chiral intermediate in the pharmaceutical industry. The pyridine moiety and the chiral amine center are crucial structural motifs found in numerous bioactive molecules. It is extensively used in the research and development of various drugs, particularly those targeting the central nervous system (CNS) and acting as enzyme inhibitors. For instance, it serves as a critical precursor in the synthesis of (S)-Nicotine and its analogs, which are important for neurological studies. Due to its well-defined structure and commercial availability in high enantiomeric purity, it is also employed as a versatile chiral ligand or auxiliary in asymmetric synthesis. It finds use in the preparation of other complex chiral amines and heterocyclic compounds. As a basic amine, it requires careful handling under inert atmosphere and storage in a cool, dry place to prevent degradation.