(S)-3-Amino-2-pyrrolidinone Hydrochloride is primarily used in the pharmaceutical industry as a key intermediate in the synthesis of various bioactive compounds. It plays a crucial role in the development of drugs targeting neurological disorders, particularly those involving the modulation of neurotransmitter systems. This compound is also utilized in the production of chiral molecules, which are essential for creating enantiomerically pure pharmaceuticals, ensuring higher efficacy and reduced side effects. Additionally, it finds application in research settings for studying enzyme inhibition and receptor binding activities, contributing to the advancement of medicinal chemistry and drug discovery.