Dibutyl sulfate

Dibutyl sulfate (CAS 625-22-9, EC 613-047-2) is an organosulfate ester commonly abbreviated as DBS and also referred to as butyl sulfate or di-n-butylsulfat. It carries no assigned E-code. The compound belongs to the sulfate ester family and is handled as an industrial-grade liquid solvent and chemical intermediate.

In plastics and polymer processing, DBS functions as a plasticizer by intercalating between polymer chains to reduce intermolecular forces and improve flexibility. In lubricant and metalworking formulations, it serves as a solvent carrier for additive packages, facilitating uniform dispersion of active components across the base fluid matrix.

Dibutyl sulfate is supplied in industrial grades compliant with REACH registration requirements and is subject to standard GHS hazard classification protocols for sulfate esters. Typical packaging includes drums and intermediate bulk containers. Procurement teams should confirm SDS documentation and purity specifications directly with the supplier prior to ordering.