(S)-1-(2-Chlorophenyl)ethanamine is primarily utilized in the pharmaceutical industry as a chiral building block for the synthesis of various active pharmaceutical ingredients (APIs). Its enantiomeric purity makes it valuable in the development of drugs that require specific stereochemistry for optimal activity. It is often employed in the production of antidepressants, antipsychotics, and other central nervous system (CNS) drugs, where its structure contributes to the desired pharmacological effects. Additionally, it serves as an intermediate in organic synthesis, particularly in the creation of complex molecules for medicinal chemistry research. Its application extends to the development of chiral catalysts and ligands used in asymmetric synthesis, enhancing the efficiency and selectivity of chemical reactions.