Diphenyl carbonate

Diphenyl carbonate (DPC, CAS 102-09-0) is an organic carbonate ester also known as phenyl carbonate, bisphenyl carbonate, and carbonic acid diphenyl ester. It carries no assigned E-code and is commercially identified under EC number 203-005-8 with HS code 29209010.

In polycarbonate and polyurethane production, diphenyl carbonate acts as a non-phosgene carbonylation agent, reacting with bisphenol A through melt transesterification to build polymer chains without chlorinated intermediates. It also functions as a preservative and antimicrobial agent in personal care formulations, and serves as a fragrance and flavoring precursor in cosmetic and food-adjacent applications.

Diphenyl carbonate is supplied as flakes or crystalline powder in technical and high-purity grades, with select batches meeting FCC or pharmaceutical-grade specifications. It is registered under REACH and available in standard industrial packaging. Procurement teams should confirm grade suitability against application-specific purity thresholds before ordering.