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34861

2-Butanone

suitable for HPLC, ≥99.7%

Synonym(s):

Ethyl methyl ketone, MEK, Methyl ethyl ketone

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About This Item

Linear Formula:
C2H5COCH3
CAS Number:
78-93-3
Molecular Weight:
72.11
UNSPSC Code:
41116105
PubChem Substance ID:
329755070
eCl@ss:
39021202
EC Number:
201-159-0
Beilstein/REAXYS Number:
741880
MDL number:
MFCD00011648
Assay:
≥99.7%
Grade:
HPLC grade
Technique(s):
HPLC: suitable
Bp:
80 °C (lit.)
Vapor pressure:
71 mmHg ( 20 °C)
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grade

HPLC grade

vapor density

2.49 (vs air)

vapor pressure

71 mmHg ( 20 °C)

assay

≥99.7%

form

liquid

autoignition temp.

960 °F

expl. lim.

10.1 %

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as CH3COOH), ≤0.001% non-volatile matter, ≤0.1% water (Karl Fischer)

evapn. residue

≤0.001%

transmittance

335 nm, ≥50%, 340 nm, ≥80%, 350 nm, ≥98%

refractive index

n20/D 1.379 (lit.)

bp

80 °C (lit.)

mp

−87 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

λ

neat

UV absorption

λ: 335 nm Amax: ≤0.30, λ: 340 nm Amax: ≤0.10, λ: 350 nm Amax: ≤0.01

application(s)

food and beverages

SMILES string

CC(CC)=O

InChI

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

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

General description

Physical properties of the solutions of 1-n-butyl-3-methylimidazolium tetrafluoroborate (ionic liquid) in various organic solvents (acetonitrile, dichloromethane, 2-butanone and N,N-dimethylformamide) has been studied. Viscosity and density of these mixtures were evaluated at 298.15K.

Application

2-Butanone may be employed as a solvent for the methylation agent [11C]methyl trifluoromethanesulfonate ([11C]CH3OTf), during the completely automated radiosynthesis of 2-(4-N-[11C]methylaminophenyl)-6-hydroxybenzothiazole ([11C]PIB).

Other Notes

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pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

supp_hazards

EUH066

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

30.2 °F - closed cup

flash_point_c

-1 °C - closed cup

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