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 Isopentane 78784

CASRN: 78-78-4

Formula: C5-H12

Synonyms/Common Names

  • Butane, 2-methyl- (8CI)(9CI)

Genetic Toxicology

  • Drosophila  (909032)  Completed 
    • Citation: Foureman P, Mason JM, Valencia R, Zimmering S. Chemical mutagenesis testing in Drosophila. X. Results of 70 coded chemicals tested for the National Toxicology Program. Environ Mol Mutagen. 1994;23(3):208-27. doi: 10.1002/em.2850230310
    • Reciprocal Translocation/Sex-Linked Recessive Lethal Negative 
  • Salmonella  (211868)  Completed 
    •  Negative