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537705

Sigma-Aldrich

5-Methyl-2-hexanone

99%

Synonym(s):
Isobutylacetone, MIAK, Isopentyl methyl ketone
Linear Formula:
(CH3)2CHCH2CH2COCH3
CAS Number:
Molecular Weight:
114.19
Beilstein:
506163
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

3.94 (vs air)

vapor pressure

4.5 mmHg ( 20 °C)

assay

99%

form

liquid

autoignition temp.

797 °F

expl. lim.

1.35-8.2 %, 93 °F

impurities

≤0.05% (water)

refractive index

n20/D 1.406 (lit.)

bp

145 °C (lit.)

mp

-74 °C

solubility

water: soluble 5.4 g/L at 25 °C

density

0.814 g/mL at 25 °C (lit.)

SMILES string

CC(C)CCC(C)=O

InChI

1S/C7H14O/c1-6(2)4-5-7(3)8/h6H,4-5H2,1-3H3

InChI key

FFWSICBKRCICMR-UHFFFAOYSA-N

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General description

5-Methyl-2-hexanone (methyl isoamyl ketone, MIAK) is an aliphatic ketone. Its ability to elicit germination response in uredospores of certain species of rust has been investigated. The near-UV absorption cross section and absorption spectrum of MIAK were measured and employed to determine its photolysis lifetime. The dynamics of the Norrish Type-II reaction of MIAK has been studied using femtosecond time-resolved mass spectrometry.

Application

5-Methyl-2-hexanone may be used to synthesize N,N′-bis(1,4-dimethylpentyl)-p-phenylenediamine (BMPPD) via reductive alkylation of p-nitroaniline in the presence of copper-based catalysts.

Packaging

18 L in steel drum
1 L in glass bottle

Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Inhalation - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

104.0 °F - closed cup

Flash Point(C)

40 °C - closed cup

Certificate of Analysis

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Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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