Dibutyl carbonate

Dibutyl carbonate (CAS 542-52-9, EC 208-816-0) is an organic carbonate ester also known as n-butyl carbonate, butyl carbonate, and under trade names such as Jeffsol AG 1560 and NSC 8462. It carries no assigned E-code and is classified under HS code 2920.90.5100.

In plastics and polymer processing, dibutyl carbonate functions as a reactive solvent and plasticizer, improving flow properties and reducing melt viscosity during compounding. In lubricant and metalworking formulations, it acts as a carrier solvent, facilitating even distribution of additives across metal surfaces and improving film formation.

Dibutyl carbonate is supplied as a clear liquid and is subject to REACH registration requirements for EU market supply. Procurement teams should confirm technical or industrial grade specifications with the supplier, as purity thresholds vary by application. Standard packaging formats include drums and intermediate bulk containers.