(S)-1-(3-Fluorophenyl)ethanamine is primarily used 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 biological activity. This compound is often employed in the production of antidepressants, antipsychotics, and other central nervous system (CNS) targeting medications. Additionally, it serves as an intermediate in organic synthesis, particularly in the creation of complex molecules with potential therapeutic applications. Its fluorophenyl group enhances binding affinity and metabolic stability in drug molecules, making it a critical component in medicinal chemistry research and development.