(S)-KT109 is primarily utilized in the field of medicinal chemistry and drug development. It serves as a key intermediate in the synthesis of biologically active compounds, particularly those targeting specific enzymes or receptors involved in disease pathways. Its stereospecific nature makes it valuable in creating enantiomerically pure drugs, which often exhibit improved efficacy and reduced side effects. Researchers also employ (S)-KT109 in the study of structure-activity relationships to optimize the therapeutic potential of drug candidates. Additionally, it finds application in the development of small molecule inhibitors for use in cancer research and other therapeutic areas.