Primarily utilized in the synthesis of advanced organic materials, 4,6-Dihydroxyisophthalic acid serves as a key building block in the production of high-performance polymers. Its functional groups enable the creation of polyesters and polyamides with enhanced thermal stability and mechanical properties, making it valuable for applications in the automotive and aerospace industries. Additionally, it is employed in the development of metal-organic frameworks (MOFs), which are used for gas storage, separation, and catalysis due to their porous structures. The compound also finds use in the pharmaceutical sector as an intermediate in the synthesis of bioactive molecules and drug candidates. Its ability to form stable complexes with metals further extends its utility in catalysis and material science research.