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Testing Status of tert-Butyl alcohol 10402-N


CASRN: 75-65-0

Formula: C4-H10-O

Synonyms/Common Names

  • tert-Butanol
  • 2-Methylpropan-2-ol
  • 2-Methyl-2-propanol
  • TBA
  • t-Butanol
  • t-Butyl hydroxide
  • tert-Butyl alcohol
  • Trimethyl carbinol
  • Trimethyl methanol

Known Uses

Widely used in the manufacture of perfumes and a variety of cosmetics. It is also used as a raw material in the production of isobutylene, which may be used to produce methyl tertiary butyl ether, a common gasoline additive, or to produce butyl elastomers used in the production of automobile tires. Associated with tobacco: reported either as a natural component of tobacco, pyrolysis product (in tobacco smoke), or additive for one or more types of tobacco products.

Chemical Properties

Toxicity Effects (HSDB)

Short-Term Toxicity

  • 14-Day (Inhalation)  (C55367C)  Completed 
    • Rats: F344/N; Mice: B6C3F1
  • 13-Week (Dosed-Water)  (C55367B)  Completed 
    • Rats: F344/N; Mice: B6C3F1
    • Dose: 0, 2.5, 5, 10, 20, 40 MG/ML 10/GROUP.
  • 13 weeks (Inhalation)  (C55367C)  Completed 
    • TOX-53 (NIH Number: 97-3942)  (Tox Peer Review 09/01/1996A )
      Toxicity Studies oft-Butyl Alcohol Administered in F344/N Rats and B6C3F1 Mice (Inhalation Studies) (CASRN 75-65-0)
    • Rats: F344/N; Mice: B6C3F1
    • Dose: R&M: 0, 135, 270, 540, 1080, OR 2100 PPM.

Long-Term Carcinogenicity

  • 2 years (Dosed-Water)  (C55367B)  Completed 
    • TR-436 (NIH Number: 95-3167)  (Peer Review Approval 06/21/1994A )
      Toxicology and Carcinogenesis Studies of t-Butyl Alcohol (CASRN 75-65-0) in F344/N Rats and B6C3F1 Mice (Drinking Water Studies)
    • Rats: F344/N; Mice: B6C3F1
    • Carcinogenesis Results
      • Male Rats Some Evidence 
      • Female Rats No Evidence 
      • Male Mice Equivocal Evidence 
      • Female Mice Some Evidence 
    • Dose: MALE RATS: 0, 1.25, 2.5, 5 MG/ML; FEMALE RATS: 0, 2.5, 5, 10 MG/ML; MICE 0, 5, 10, 20 MG/ML/60 PER GROUP.

Genetic Toxicology

  • In Vitro Cytogenetics (CA/SCE)  (263726)  Completed 
    • Sister Chromatid Exchange Negative 
    • Chromosome Aberrations Negative 
  • Mouse Lymphoma  (097469)  Completed 
    • Citation: McGregor, D.B., Brown, A., Cattanach, P., Edwards, I., McBride, D., and Caspary, W.J. Responses of the L5178Y tk+/tk- mouse lymphoma cell forward mutation assay to coded chemicals. II. 18 coded chemicals. Environ. Molec. Mutagen. Vol. 11 (1988) 91-118
    • Mice
    •  Negative 
  • Micronucleus  (A00971)  Completed 
    • Citation: Witt, K.L., Knapton, A., Wehr, C.M., Hook, G.J., Mirsalis, J., Shelby, M.D., and MacGregor, J.T. Micronucleated Erythrocyte Frequency in Peripheral Blood of B6C3F1 Mice from Short-Term, Prechronic, and Chronic Studies of the NTP Carcinogenesis Bioassay Program. Environ. Molec. Mutagen. Vol. 36 (2000) 163-194
    • Mice: B6C3F1
    • Male Negative 
    • Female Negative 
  • Micronucleus  (A26596)  Completed 
    • Mice: B6C3F1
    • Male Negative 
  • Micronucleus  (A50244)  Completed 
    • Rats: Fischer 344
    • Male Negative 
  • Salmonella  (875987)  Completed 
    • Citation: Zeiger E, Anderson B, Haworth S, Lawlor T, Mortelmans K, Speck W. Salmonella mutagenicity tests: III. Results from the testing of 255 chemicals. Environ Mutagen. 1987;9 Suppl 9:1-109.
    •  Negative