National Toxicology Program

National Toxicology Program

Scientific Review of Methyl-t-Butyl Ether (MtBE)

CASRN 1634-04-4
Status: Reviewed but not listed in the Report on Carcinogens (RoC)

Primary Uses or Exposures: MtBE is used as an additive in unleaded gasoline in amounts up to 11% in response to Clean Air Act.

Background Document

Public Comments


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NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.