Used as a curing agent for high-performance epoxy resins, particularly in aerospace and electronic applications due to its ability to form thermally stable and mechanically strong networks. It is also employed in the synthesis of azo dyes and pigments, where it contributes to lightfast and vibrant coloration. Additionally, it serves as a building block in the preparation of conjugated polymers for optoelectronic devices. Its reactivity and molecular structure make it valuable in crosslinking polymers for coatings and adhesives requiring chemical and heat resistance.