Testing Status of 2-ethylhexyl-2,3,4,5-tetrabromobenzoate 13063


CASRN: 183658-27-7

Formula: C15H18Br4O2

Synonyms/Common Names

  • Benzoic acid, 2,3,4,5-tetrabromo-, 2-ethylhexyl ester
  • Flame Retardant 2
  • TBB

Known Uses

TBB is an additive flame retardant. It is the major brominated component in the flame retardant mixture Firemaster 550 (FM550), the primary replacement for pentaBDEs in polyurethane foam. The other brominated chemical in Firemaster 550 is bis(2-ethylhexyl) tetrabromophthalate (TBPH). The approximate ratio of TBB/TBPH in FM550 is 4:1.

Chemical Properties

Toxicity Effects (HSDB)


  • 5 days Microarray Analysis (Gavage)  (T13063)  Assigned 
    • Rats: Hsd:Sprague Dawley SD
    • Dose: 0, 0.1, 1, 10, 100, or 1000 umol/kg; 6 males/group.