Skip to Main Navigation
Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Testing Status of 1,2,3,4,7,8-Hexachlorodibenzofuran M920004

CASRN: 70648-26-9

Formula: C12-H2-Cl6-O

Synonyms/Common Names

  • Dibenzofuran, 1,2,3,4,7,8-hexachloro-

Organ Systems Toxicity

  • Conventional Teratology (Gavage)  (TER90081)  Completed 
    • Mice: C57BL/6N
    • Dose: 0, .1, .2, .3, .6, 1.0 MG/KG.
    • Mice Maternal Positive 
    • Mice Fetal Positive