Bis(2-ethylhexyl) tetrabromophthalate

Bis(2-ethylhexyl) tetrabromophthalate (CAS 26040-51-7), also known commercially as TBPH or BEH-TEBP, is a brominated additive that delivers both flame retardancy and plasticizing performance within a single component. It is used across polymer and elastomer systems where halogenated flame protection is required without sacrificing material flexibility. In flexible PVC and polyurethane formulations, it functions as a reactive-compatible plasticizer.

This additive simultaneously meets flame retardancy standards, reducing the need for separate additive packages. Electronics manufacturers use it in wire and cable insulation, connector housings, and circuit board coatings. It is essential where UL flame ratings must be maintained in flexible substrates. Automotive and aerospace interior components, including seating foams, gaskets, and panel linings, rely on it to meet fire performance specifications.

These applications require retaining mechanical flexibility under various conditions. Building and construction applications include flame-retardant sealants, adhesives, and flexible roofing membranes for long-term performance. Bis(2-ethylhexyl) tetrabromophthalate is supplied as a clear to pale yellow viscous liquid. Technical grade is the standard commercial form, with bromine content typically around 46% used as a key specification reference.

This percentage serves as a primary metric for procurement and QC purposes. Bulk liquid and intermediate container (IBC) formats are the common supply configurations for industrial buyers and large-scale manufacturing.