Pyridine-3,5-diamine is primarily used in the synthesis of various organic compounds, particularly in the production of pharmaceuticals and agrochemicals. It serves as a key intermediate in the development of drugs, including those targeting bacterial infections and cancer, due to its ability to form stable complexes with metal ions. Additionally, it is employed in the creation of dyes and pigments, where its amino groups enable the formation of vibrant and durable colors. In material science, it is utilized in the preparation of coordination polymers and metal-organic frameworks (MOFs), which have applications in gas storage, separation, and catalysis. Its versatility in chemical reactions makes it a valuable component in research and industrial processes.