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3-methyl-1-butanol

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Title: 3-methyl-1-butanol  
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3-methyl-1-butanol

Isoamyl alcohol[1]
Identifiers
CAS number 123-51-3 YesY
PubChem 31260
ChemSpider 29000 YesY
DrugBank DB02296
KEGG C07328 YesY
ChEBI CHEBI:15837 YesY
Jmol-3D images Image 1
Properties
Molecular formula C5H12O
Molar mass 88.148 g/mol
Appearance Clear, colorless liquid
Density 0.8104 g/cm3 at 20 °C
Melting point

-117.2 °C, 156 K, -179 °F

Boiling point

131.1 °C, 404 K, 268 °F

Solubility in water 28 g/L
Solubility very soluble in acetone, diethyl ether, ethanol
Viscosity 3.692 mPa·s
Thermochemistry
Std enthalpy of
formation
ΔfHo298
-356.4 kJ·mol-1 (liquid)
-300.7 kJ·mol-1 (gas)
Specific heat capacity, C 2.382 J·g-1·K-1
Hazards
Flash point 43 °C
Autoignition
temperature
350 °C
Explosive limits 1.2 – 9%
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Isoamyl alcohol (also known as isopentyl alcohol) is a clear, colorless alcohol with the formula (CH3)2CHCH2CH2OH. It is one of several isomers of amyl alcohol. It is a main ingredient in the production of banana oil, an ester found in nature and also produced as a flavouring in industry. It's also the main ingredient of Kovac's reagent, used for the bacterial diagnostic indole test.

It is also used as an antifoaming agent in the Chloroform:Isomyl Alcohol reagent.

It is one of the components of the aroma of Tuber melanosporum, the black truffle. It has been identified as a chemical in the pheromone used by hornets to attract other members of the hive to attack.

References

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