Used primarily as an intermediate in the synthesis of dyes and pigments, especially chlorinated derivatives that offer improved light and heat stability. It also serves in the production of high-performance polymers and resins, where it contributes to enhanced thermal resistance and mechanical strength. Its reactivity allows for incorporation into flame retardant additives for plastics and coatings. Additionally, it finds use in agrochemical synthesis as a building block for certain herbicides and plant growth regulators.