Carbonic acid benzyl phenyl ester is primarily utilized in the synthesis of organic compounds, particularly in the production of polymers and resins. It serves as a key intermediate in the manufacturing of polycarbonates, which are widely used in the creation of durable plastics for eyewear lenses, electronic components, and automotive parts. Additionally, this compound finds application in the development of specialty coatings and adhesives, offering enhanced thermal stability and chemical resistance. Its role in the pharmaceutical industry includes its use as a reagent in the synthesis of certain active pharmaceutical ingredients (APIs), contributing to the production of medications with improved efficacy and stability.