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Sigma-Aldrich

2-Butanone

ACS reagent, ≥99.0%

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Synonym(s):
Ethyl methyl ketone, MEK, Methyl ethyl ketone
Linear Formula:
C2H5COCH3
CAS Number:
78-93-3
Molecular Weight:
72.11
Beilstein:
741880
EC Number:
201-159-0
MDL number:
MFCD00011648
PubChem Substance ID:
329755259
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

vapor density

2.49 (vs air)

vapor pressure

71 mmHg ( 20 °C)

Assay

≥99.0%

form

liquid

autoignition temp.

960 °F

expl. lim.

10.1 %

impurities

≤0.0005 meq/g Titr. acid
≤0.20% water

evapn. residue

≤0.0025%

color

APHA: ≤15

refractive index

n20/D 1.379 (lit.)

bp

80 °C (lit.)

mp

−87 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

SMILES string

CC(CC)=O

InChI

1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

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General description

2-Butanone is an organic compound that can be used in the chemical industry as an oxidative reaction activator, extractive agent, solvent, and chemical intermediate. It can be produced by the catalytic dehydrogenation of 2-butanol.

Application

2-Butanonecan be used as a solvent:
  • To synthesize waterborne polyurethanes by reacting polyols and diisocyanates via polymerization reaction.
  • In the Al-catalyzed chemoselective coupling of oxetanes and carbon dioxide to synthesize six-membered cyclic carbonates.

Features and Benefits

  • Low-boiling solvent
  • High power of dissolution
  • High ratio of dissolved matter to viscosity
  • Miscible with a wide range of hydrocarbonswithout affecting the solid′s content or viscosity
  • Favorable volume/mass ratio due to its low density
  • Fast evaporation rate

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225 - H319 - H336

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

EUH066

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

30.2 °F - closed cup

Flash Point(C)

-1 °C - closed cup

Regulatory Information

危险化学品
易制毒化学品（3类）

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A volumetric and viscosity study for the mixtures of 1-n-butyl-3-methylimidazolium tetrafluoroborate ionic liquid with acetonitrile, dichloromethane, 2-butanone and N, N-dimethylformamide.
Wang J, et al.
Green Chemistry, 5(5), 618-622 (2003)
A simple one-pot multicomponent synthesis of an octahedral nanocontainer molecule.
Liu X and Warmuth R.
Nature Protocols, 2(5), 1288-1296 (2007)
C Philippe et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 69(9), 1212-1217 (2011-05-10)
[(11)C]PIB is still the standard PET compound for Alzheimer imaging targeting beta-amyloid plaques. We aimed to establish a fully-automated procedure for the synthesis and purification of [(11)C]PIB with a high degree of reliability and improved specific activity as well as
L B Goldsmith et al.
Contact dermatitis, 19(5), 348-350 (1988-11-01)
Irritant contact dermatitis along with an increased transepidermal water loss can result from exposing the skin to solvents. A study of the interaction of various solvents with human stratum corneum was made using thin-layer chromatography. Comparison of 10 solvents (trichloroethylene
Consalvo Petti et al.
Oncotarget, 6(1), 221-233 (2014-12-05)
Constitutively active receptor tyrosine kinases (RTKs) are known oncogenic drivers and provide valuable therapeutic targets in many cancer types. However, clinical efficacy of RTK inhibitors is limited by intrinsic and acquired resistance. To identify genes conferring resistance to inhibition of
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