5'-Methylspiro[cyclopropane-1,3'-indoline] is primarily used in the field of organic synthesis, where it serves as a key intermediate in the development of complex molecules. Its unique spirocyclic structure makes it valuable for constructing pharmacologically active compounds, particularly in the synthesis of indoline-based derivatives. These derivatives are often explored for their potential in drug discovery, especially in the development of treatments for neurological disorders and cancer. Additionally, the compound's rigid framework is utilized in materials science for designing advanced polymers and ligands with specific binding properties. Its application in catalysis is also notable, as it can act as a precursor for catalysts used in asymmetric synthesis, enhancing the efficiency and selectivity of chemical reactions.