chemical information
CAS RN:

67733-57-7

Chemical Class:

Brominated furan

Chemical SubClass

Tetrabrominated furan

Found in these people:

Baby #1, Baby #5

Found in these locations:

not found





2,3,7,8-TBDF (tetrafuran)

2,3,7,8-TBDF (tetrafuran) has been found in 2 of the 23 people tested in EWG/Commonweal studies.


Top health concerns for 2,3,7,8-TBDF (tetrafuran) (References)

health concern or target organ weight of evidence
Immune system (including sensitization and allergies)limited


Results for 2,3,7,8-TBDF (tetrafuran)

in blood serum (lipid weight)

Showing results from Pollution in Minority Newborns, EWG Study #3, industrial chemicals and pesticides in adults, EWG/Commonweal Study #4, industrial chemicals and pesticides in cord blood

EWG/Commonweal results

  • geometric mean: 1.19 pg/g (lipid weight) in blood serum
  • found in 2 of 23 people in the group
0 pg/g (lipid weight) in blood serum 11.1


2,3,7,8-TBDF (tetrafuran) results


Detailed toxicity classifications (References)

classification governing entity/references
Limited evidence in humans - immune system toxicityBirnbaum, L. S., D. F. Staskal, et al. (2003). Health effects of polybrominated dibenzo-p-dioxins (PBDDs) and dibenzofurans (PBDFs). Environ Int 29(6): 855-60.