m-Toluidine is primarily used as an intermediate in the production of dyes and pigments. It plays a crucial role in synthesizing various azo dyes, which are widely applied in textiles, inks, and plastics to provide vibrant colors. Additionally, it is utilized in the manufacturing of agricultural chemicals, including herbicides and pesticides, where it acts as a key building block in their chemical structures. In the pharmaceutical industry, m-Toluidine serves as a precursor in the synthesis of certain drugs and organic compounds. It is also employed in rubber chemicals, contributing to the production of accelerators and antioxidants that enhance the performance and durability of rubber products. Furthermore, it finds application in research laboratories as a reagent for organic synthesis and chemical analysis.