Used primarily in the synthesis of polyimide polymers, which are essential in the production of high-performance materials. These polymers are known for their thermal stability, mechanical strength, and chemical resistance, making them suitable for applications in the aerospace, electronics, and automotive industries. Additionally, it serves as a key intermediate in the manufacture of dyes and pigments, contributing to the vibrant coloration of textiles and plastics. Its role in the development of advanced materials underscores its importance in industrial chemistry.