Used primarily as an intermediate in the synthesis of dyes and pigments, particularly in the production of azo dyes, which are widely applied in textiles, inks, and plastics. It also serves as a precursor in the manufacturing of certain polymers and resins, contributing to their color stability and durability. Additionally, it has been utilized in research and development for organic semiconductors and electronic materials due to its conductive properties. However, its use is regulated in many regions due to potential health and environmental concerns.