1,4-Phenylene dipropionate is primarily used as a monomer in the production of high-performance polymers and resins. It is particularly valued in the synthesis of polyesters and polyamides, which are essential in creating materials with excellent thermal stability, mechanical strength, and chemical resistance. These polymers are widely applied in the manufacturing of automotive parts, electronic components, and industrial coatings. Additionally, it serves as a crosslinking agent in the formulation of adhesives and sealants, enhancing their durability and bonding properties. Its role in specialty plastics also extends to applications in the medical field, where it contributes to the development of biocompatible devices and packaging materials.