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270466

Sigma-Aldrich

2-Methyl-1-propanol

suitable for HPLC, 99.5%

Synonym(s):

Isobutanol, Isobutyl alcohol

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About This Item

Linear Formula:
(CH3)2CHCH2OH
CAS Number:
78-83-1
Molecular Weight:
74.12
Beilstein/REAXYS Number:
1730878
EC Number:
201-148-0
MDL number:
MFCD00004740
UNSPSC Code:
12190000
PubChem Substance ID:
329752941
NACRES:
NA.21

vapor density

2.55 (vs air)

vapor pressure

8 mmHg ( 20 °C)
8.8 mmHg ( 0 °C)

assay

99.5%

form

liquid

autoignition temp.

801 °F

purified by

glass distillation

expl. lim.

10.6 %

technique(s)

HPLC: suitable

impurities

<0.050% water

evapn. residue

<0.0005%

refractive index

n20/D 1.396 (lit.)

bp

108 °C (lit.)

mp

−108 °C (lit.)

density

0.803 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 219 nm Amax: 1.00
λ: 230 nm Amax: 0.50
λ: 245 nm Amax: 0.10
λ: 250 nm Amax: 0.05
λ: 260 nm Amax: 0.03
λ: 330-400 nm Amax: 0.01

SMILES string

CC(C)CO

InChI

1S/C4H10O/c1-4(2)3-5/h4-5H,3H2,1-2H3

InChI key

ZXEKIIBDNHEJCQ-UHFFFAOYSA-N

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Application


  • Identifying Sensory Attributes of Korean Rice Wine (Makgeolli): This study used 2-Methyl-1-propanol for sensory evaluation and chemical analysis to define the flavor profiles of traditional Korean rice wine, highlighting its application in food science and flavor analysis (Wong et al., 2023).

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signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Central nervous system, Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

82.4 °F - closed cup

flash_point_c

28 °C - closed cup

Certificates of Analysis (COA)

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Determination of inorganic phosphate.
Martin JB and Doty DM.
Analytical Chemistry, 21(8), 965-967 (1949)
Diffusion in the Three Component Liquid System Methyl Alcohol-n-Propyl Alcohol-Isobutyl Alcohol.
Shuck FO and Toor HL.
The Journal of Physical Chemistry, 67(3), 540-545 (1963)
Arul M Varman et al.
Applied and environmental microbiology, 79(3), 908-914 (2012-11-28)
Global warming and decreasing fossil fuel reserves have prompted great interest in the synthesis of advanced biofuels from renewable resources. In an effort to address these concerns, we performed metabolic engineering of the cyanobacterium Synechocystis sp. strain PCC 6803 to
Jan-Karl Guterl et al.
ChemSusChem, 5(11), 2165-2172 (2012-10-23)
The limited supply of fossil resources demands the development of renewable alternatives to petroleum-based products. Here, biobased higher alcohols such as isobutanol are versatile platform molecules for the synthesis of chemical commodities and fuels. Currently, their fermentation-based production is limited
Aiqin Shi et al.
Metabolic engineering, 16, 1-10 (2012-12-19)
Isobutanol is an excellent alternative biofuel. Fermentative production of isobutanol had been realized in several microorganisms by combining branched-chain amino acids synthetic pathway and Ehrlich pathway. In contrast to using plasmid overexpression and inducible promoters, genetically stable Escherichia coli strains
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