Used as a key intermediate in the synthesis of high-performance polymers, particularly in the production of specialty polycarbonates and epoxy resins. Its sterically hindered structure provides enhanced thermal stability and oxidative resistance to the resulting materials. Commonly applied in coatings, adhesives, and composites requiring durability under harsh conditions. Also utilized in the development of antioxidants and stabilizers for industrial applications due to its phenolic groups, which effectively scavenge free radicals.