Used primarily in the synthesis of polymers, it serves as a key intermediate in producing high-performance materials like polyimides, which are essential in electronics for flexible circuits and insulation films. It also plays a role in manufacturing dyes and pigments, contributing to vibrant and durable colors in textiles and coatings. Additionally, it is utilized in organic synthesis to create pharmaceuticals and agrochemicals, enhancing their stability and effectiveness. Its reactivity with amines and alcohols makes it valuable for producing specialty chemicals and adhesives.