2-methyl-1-butanol

2-Methyl-1-butanol

Names
Preferred IUPAC name 2-Methylbutan-1-ol
Other names 2-Methyl-1-butanol Active amyl alcohol
Identifiers
CAS Number	137-32-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:48945 Y
ChemSpider	8398 Y
ECHA InfoCard	100.004.809
PubChem CID	8723
UNII	7VTJ239ASU Y
InChI InChI=1S/C5H12O/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3 Y Key: QPRQEDXDYOZYLA-UHFFFAOYSA-N Y InChI=1/C5H12O/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3 Key: QPRQEDXDYOZYLA-UHFFFAOYAW
SMILES OCC(C)CC
Properties
Chemical formula	C5H12O
Molar mass	88.148 g/mol
Appearance	colorless liquid
Density	0.8152 g/cm3
Melting point	−117.2 °C (−179.0 °F; 156.0 K)
Boiling point	127.5 °C (261.5 °F; 400.6 K)
Solubility in water	31 g/L
Solubility	miscible with ethanol, diethyl ether; very soluble in acetone
Vapor pressure	3 mm Hg
Viscosity	4.453 mPa·s
Thermochemistry
Std enthalpy of formation (ΔfHo298)	-356.6 kJ·mol−1 (liquid) -301.4 kJ·mol−1 (gas)
Hazards
Autoignition temperature	385 °C (725 °F; 658 K)
Related compounds
Related compounds	Amyl alcohol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

2-Methyl-1-butanol (IUPAC name, also called active amyl alcohol) is an organic chemical compound.

It is one of the components of the aroma of Tuber melanosporum, the black truffle.

It is used as a solvent and an intermediate in the manufacture of other chemicals. 2-Methyl-1-butanol is a component of many mixtures of amyl alcohols sold industrially.

2-Methyl-1-butanol can be derived from fusel oil (because it occurs naturally in fruits such as grapes) or manufactured by either the oxo process or via the halogenation of pentane.