2,2'-Diaminobiphenyl is primarily used as an intermediate in the synthesis of various organic compounds. It plays a crucial role in the production of dyes, particularly for creating colorants with specific properties for textiles and industrial applications. Additionally, it is utilized in the development of polymers and resins, where it contributes to enhancing material strength and durability. In the pharmaceutical industry, it serves as a building block for the synthesis of certain drugs and active pharmaceutical ingredients. Its applications also extend to the field of agrochemicals, where it is involved in the creation of pesticides and herbicides. Furthermore, 2,2'-Diaminobiphenyl is employed in research and development for exploring new chemical reactions and pathways in organic chemistry.