m-Toluidine is primarily used as an intermediate in the production of various dyes and pigments, particularly azo dyes, which are widely employed in the textile, paper, and leather industries. It is also utilized in the synthesis of certain pharmaceuticals, where it serves as a building block for active pharmaceutical ingredients. Additionally, m-Toluidine finds application in the manufacture of agrochemicals, including herbicides and pesticides, contributing to crop protection. In the rubber industry, it acts as an accelerator in the vulcanization process, enhancing the properties of rubber products. Furthermore, it is used in research and development for organic synthesis and chemical studies.