1,2,3,4-butanetetracarboxylic dianhydride is a white crystalline powder that holds immense significance in the manufacturing sector. Known for its exceptional thermal and mechanical properties, this compound serves as a vital building block in the production of high-performance polymers, resins, and composites. With a CAS number of 4534-73-0, it is widely regarded as a reliable and cost-effective solution for a variety of industrial applications.