1,2-Dicyanobenzene is primarily used as an intermediate in the synthesis of various organic compounds. It plays a crucial role in the production of dyes, pigments, and pharmaceuticals, where its cyano groups facilitate the formation of complex molecules. Additionally, it is employed in the manufacture of high-performance polymers and resins, enhancing their thermal and chemical stability. In agrochemicals, it serves as a building block for creating pesticides and herbicides. Its reactivity also makes it valuable in organic synthesis for constructing heterocyclic compounds, which are essential in many industrial and research applications.