M-Tolylhydrazine is primarily used in the synthesis of various organic compounds, particularly in the production of pharmaceuticals and agrochemicals. It serves as a key intermediate in the development of drugs, including those with anti-inflammatory and anti-cancer properties. Additionally, it is employed in the creation of dyes and pigments, contributing to vibrant and stable colorants for industrial applications. Its role in organic synthesis also extends to the preparation of heterocyclic compounds, which are essential in numerous chemical research and development processes.