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.

Https

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 Toxic equivalency factor evaluation (Binary mixture; PCB 126/PCB 153) M960055

CASRN: TEFBINARYMIX

Synonyms/Common Names

  • Binary mixture (Toxic equivalency factor evaluation)
  • Toxic equivalency factor evaluation (Binary Mixture)

Secondary:

  • 35065-27-1 - 2,2'-4,4',5,5'-Hexachlorobiphenyl (PCB 153)
  • 57465-28-8 - 3,3,4,4,5-Pentachlorobiphenyl (PCB 126)
  • 57465-28-8 - TEF transgenics (PCB 126)
  • 35065-27-1 - Toxic equivalency factor evaluation (PCB 153- 2,2'-4,4',5,5'-hexachlorobiphenyl)
  • 57465-28-8 - Toxic equivalency factor evaluation ((PCB 126) 3,3',4,4',5-pentachlorobiphenyl)

Long-Term Carcinogenicity

  • 2 years (Gavage)  (C96020)  Completed 
    • TR-530 (NIH Number: 06-4466)  (Peer Review Approval 12/09/2004A )
      Toxicology and Carcinogenesis Studies of a Binary Mixture of 3,3',4,4',5-Pentachlorobiphenyl (PCB 126) (CASRN 57465-28-8) and 2,2',4,4',5,5'-Hexachlorobiphenyl (PCB 153) (CASRN 35065-27-1) in Female Harlan Sprague-Dawley Rats (Gavage Studies)
    • Rats: Harlan Sprague-Dawley
    • Dose: Female rats only: 0; (PCB126) 10, 100, 300, or 1000 ng/kg; (PCB 153) 10, 100, 300, or 1000 ug/kg; 50/dose.
    • Carcinogenesis Results
      • Female Rats Clear Evidence