Date published: 2026-2-13

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3-Methyl-1-butanol (CAS 123-51-3)

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Alternate Names:
Isoamyl alcohol
CAS Number:
123-51-3
Molecular Weight:
88.15
Molecular Formula:
C5H12O
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3-Methyl-1-butanol is a colorless, volatile liquid with a pleasant fruity scent. It occurs naturally in various plants, fruits, and vegetables. 3-Methyl-1-butanolfinds wide-ranging applications. It serves as a solvent for organic synthesis and acts as a reagent in studies related to biochemistry and physiology.


3-Methyl-1-butanol (CAS 123-51-3) References

  1. Rapid identification of target genes for 3-methyl-1-butanol production in Saccharomyces cerevisiae.  |  Schoondermark-Stolk, SA., et al. 2006. Appl Microbiol Biotechnol. 70: 237-46. PMID: 16041576
  2. Exogenous Valine Reduces Conversion of Leucine to 3-Methyl-1-Butanol in Saccharomyces cerevisiae.  |  Bigelis, R., et al. 1983. Appl Environ Microbiol. 45: 658-64. PMID: 16346213
  3. Engineering of an Escherichia coli strain for the production of 3-methyl-1-butanol.  |  Connor, MR. and Liao, JC. 2008. Appl Environ Microbiol. 74: 5769-75. PMID: 18676713
  4. Kinetics of growth and 3-methyl-1-butanol production by meat-borne, coagulase-negative staphylococci in view of sausage fermentation.  |  Ravyts, F., et al. 2009. Int J Food Microbiol. 134: 89-95. PMID: 19251335
  5. 3-Methyl-1-butanol production in Escherichia coli: random mutagenesis and two-phase fermentation.  |  Connor, MR., et al. 2010. Appl Microbiol Biotechnol. 86: 1155-64. PMID: 20072783
  6. Metabolic engineering of Saccharomyces cerevisiae for the production of isobutanol and 3-methyl-1-butanol.  |  Park, SH., et al. 2014. Appl Microbiol Biotechnol. 98: 9139-47. PMID: 25280745
  7. Field evaluation of synthetic lure (3-methyl-1-butanol) when compared to non odor-baited control in capturing Anopheles mosquitoes in varying land-use sites in Madagascar.  |  Zohdy, S., et al. 2015. Parasit Vectors. 8: 145. PMID: 25889982
  8. 3-Methyl-1-butanol Biosynthesis in an Engineered Corynebacterium glutamicum.  |  Xiao, S., et al. 2016. Mol Biotechnol. 58: 311-8. PMID: 26961908
  9. Production of 2-methyl-1-butanol and 3-methyl-1-butanol in engineered Corynebacterium glutamicum.  |  Vogt, M., et al. 2016. Metab Eng. 38: 436-445. PMID: 27746323
  10. Engineering Corynebacterium glutamicum Mutants for 3-Methyl-1-butanol Production.  |  Zhang, Y., et al. 2019. Biochem Genet. 57: 443-454. PMID: 30644007
  11. Metabolic engineering of Pichia pastoris for production of isopentanol (3-Methyl-1-butanol).  |  Siripong, W., et al. 2020. Enzyme Microb Technol. 138: 109557. PMID: 32527534
  12. Recent advances in the microbial production of isopentanol (3-Methyl-1-butanol).  |  Runguphan, W., et al. 2021. World J Microbiol Biotechnol. 37: 107. PMID: 34043086
  13. Light-induced production of isobutanol and 3-methyl-1-butanol by metabolically engineered cyanobacteria.  |  Kobayashi, S., et al. 2022. Microb Cell Fact. 21: 7. PMID: 34991586
  14. Studies on the prenatal toxicity of 3-methyl-1-butanol and 2-methyl-1-propanol in rats and rabbits following inhalation exposure.  |  Klimisch, HJ. and Hellwig, J. 1995. Fundam Appl Toxicol. 27: 77-89. PMID: 7589931
  15. Subchronic toxicity studies of 3-methyl-1-butanol and 2-methyl-1-propanol in rats.  |  Schilling, K., et al. 1997. Hum Exp Toxicol. 16: 722-6. PMID: 9429086

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3-Methyl-1-butanol, 500 ml

sc-231818
500 ml
$71.00

3-Methyl-1-butanol, 1 L

sc-231818A
1 L
$95.00