Isoamyl alcohol

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Isoamyl alcohol[1]
Isopentanol-2D-skeletal.png
Identifiers
CAS number123-51-3 YesY
PubChem31260
ChemSpider29000 YesY
DrugBankDB02296
KEGGC07328 YesY
ChEBICHEBI:15837 YesY
ChEMBLCHEMBL372396 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaC5H12O
Molar mass88.148 g/mol
AppearanceClear, colorless liquid
Density0.8104 g/cm3 at 20 °C
Melting point−117.2 °C (−179.0 °F; 156.0 K)
Boiling point131.1 °C (268.0 °F; 404.2 K)
Solubility in water28 g/L
Solubilityvery soluble in acetone, diethyl ether, ethanol
Viscosity3.692 mPa·s
Thermochemistry
Specific
heat capacity
C
2.382 J·g-1·K-1
Std enthalpy of
formation
ΔfHo298
-356.4 kJ·mol-1 (liquid)
-300.7 kJ·mol-1 (gas)
Hazards
Flash point43 °C (109 °F; 316 K)
Explosive limits1.2 – 9%
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references
 
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Isoamyl alcohol[1]
Isopentanol-2D-skeletal.png
Identifiers
CAS number123-51-3 YesY
PubChem31260
ChemSpider29000 YesY
DrugBankDB02296
KEGGC07328 YesY
ChEBICHEBI:15837 YesY
ChEMBLCHEMBL372396 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaC5H12O
Molar mass88.148 g/mol
AppearanceClear, colorless liquid
Density0.8104 g/cm3 at 20 °C
Melting point−117.2 °C (−179.0 °F; 156.0 K)
Boiling point131.1 °C (268.0 °F; 404.2 K)
Solubility in water28 g/L
Solubilityvery soluble in acetone, diethyl ether, ethanol
Viscosity3.692 mPa·s
Thermochemistry
Specific
heat capacity
C
2.382 J·g-1·K-1
Std enthalpy of
formation
ΔfHo298
-356.4 kJ·mol-1 (liquid)
-300.7 kJ·mol-1 (gas)
Hazards
Flash point43 °C (109 °F; 316 K)
Explosive limits1.2 – 9%
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
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.[citation needed]

Isoamyl alcohol is used in a Phenol–chloroform extraction mixed with the chloroform to further inhibit RNase activity and prevent solubility of RNAs with long tracts of poly-adenine.[2]

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.[citation needed]

References[edit]

  1. ^ Lide, David R., ed. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 3–374, 5–42, 6–188, 8–102, 15–22. ISBN 0-8493-0487-3. 
  2. ^ Green, Michael; Sambrook, Joseph. "Purification of Nucleic Acids: Extraction with Phenol-Chloroform". Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Laboratory Press. ISBN 1936113422.