(S)-()-1,2,3,4-Tetrahydro-1-naphthylamine is primarily utilized in the synthesis of pharmaceuticals, particularly in the development of chiral compounds. Its structure makes it a valuable intermediate in the production of drugs targeting the central nervous system, such as antidepressants and antipsychotics. Additionally, it is employed in asymmetric synthesis to create enantiomerically pure substances, which are crucial in enhancing the efficacy and reducing the side effects of medications. This compound also finds applications in organic chemistry research, where it is used to study reaction mechanisms and develop new synthetic pathways.