m,m'-Ditolylamine is primarily used as an intermediate in the synthesis of dyes and pigments, particularly in the production of colorants for textiles, inks, and plastics. Its chemical structure allows it to act as a building block for creating complex dye molecules that exhibit strong colorfastness and stability. Additionally, it finds application in the manufacturing of antioxidants and stabilizers for rubber and polymer products, where it helps to prevent degradation caused by heat and oxidation. In the field of organic synthesis, it serves as a reagent for preparing various aromatic compounds, contributing to the development of pharmaceuticals and agrochemicals. Its role in these industries highlights its importance in enhancing the performance and longevity of materials and chemical products.