(S)-(-)-Indoline-2-carboxylic acid is widely used in the pharmaceutical industry as a key chiral building block for the synthesis of various biologically active compounds. It serves as an intermediate in the production of drugs targeting central nervous system disorders, including antidepressants and antipsychotics. Its chiral nature makes it valuable in asymmetric synthesis, enabling the creation of enantiomerically pure compounds with enhanced therapeutic efficacy. Additionally, it is utilized in the development of peptidomimetics and other small molecules for drug discovery. Its applications extend to agrochemical research, where it contributes to the design of novel pesticides and herbicides.