2-Methyl-1-pentanol

CAS NO.：105-30-6
Empirical Formula: C6H14O
Molecular Weight: 102.17
MDL number: MFCD00004745
EINECS: 203-285-1
SAFETY DATA SHEET (SDS)
Update Date: 2026-09-12 18:48:36

What is 2-Methyl-1-pentanol?

Chemical properties

CLEAR COLOURLESS LIQUID

The Uses of 2-Methyl-1-pentanol

Solvent, intermediate.

Production Methods

2-Methyl-1-pentanol is prepared by the aldol condensation of propionaldehyde and subsequent hydrogenation of the intermediate 2-methyl-2-pentanol. Commercially, the methyl- 1-pentanols are rarely used alone but as amixture.

Synthesis Reference(s)

Journal of the American Chemical Society, 77, p. 6052, 1955 DOI: 10.1021/ja01627a077

General Description

Nonaqueous lipase-catalyzed kinetic resolution of racemic 2-methyl-1-pentanol in a continuously operated fixed bed reactor has been reported. Molar excess enthalpies of binary mixtures of 2-methyl-1-pentanol with n-hexane and its isomers has been measured in a flow microcalorimeter.

Hazard

Moderate fire risk.

Safety Profile

Moderately toxic by ingestion and skin contact. A skin and severe eye irritant. Human systemic irritant by inhalation. A flammable liquid; can react with oxidizing materials. To fight fire, use Con, dry chemical. When heated to decomposition it emits smoke and acrid fumes.

Purification Methods

Dry the 1-pentanol with Na2SO4 and distil it. [Beilstein 1 IV 1713.]

Properties of 2-Methyl-1-pentanol

Melting point:	-48.42°C (estimate)
Boiling point:	148 °C(lit.)
Density	0.824 g/mL at 25 °C(lit.)
vapor density	3.5 (vs air)
vapor pressure	1.5 mm Hg ( 20 °C)
refractive index	n20/D 1.418(lit.)
Flash point:	123 °F
storage temp.	2-8°C
form	Liquid
pka	15.05±0.10(Predicted)
color	Colorless to Almost colorless
explosive limit	9.6%
Water Solubility	5.96g/L(25 ºC)
BRN	1718974
CAS DataBase Reference	105-30-6(CAS DataBase Reference)
EPA Substance Registry System	2-Methyl-1-pentanol (105-30-6)

Safety information for 2-Methyl-1-pentanol

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H226:Flammable liquids H302:Acute toxicity,oral
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.