Used primarily in the synthesis of azo dyes and pigments due to its ability to form stable colored compounds. It serves as a key intermediate in the production of hair dyes, where it contributes to color development and dye fastness. Also employed in the manufacture of polyurethanes and epoxy curing agents, enhancing the thermal and mechanical properties of resins. Its reactivity makes it suitable for use in specialty polymers and as a building block in organic synthesis.