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34861

Sigma-Aldrich

2-Butanona

suitable for HPLC, ≥99.7%

Sinónimos:

Etilmetilcetona, MEK, Metiletilcetona

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About This Item

Fórmula lineal:
C2H5COCH3
Número de CAS:
78-93-3
Peso molecular:
72.11
Beilstein/REAXYS Number:
741880
EC Number:
201-159-0
MDL number:
MFCD00011648
UNSPSC Code:
41116105
eCl@ss:
39021202
PubChem Substance ID:
329755070

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

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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).

Recommended products

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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_germany

WGK 1

flash_point_f

30.2 °F - closed cup

flash_point_c

-1 °C - closed cup

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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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
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)
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
Federico Mele et al.
Nature communications, 6, 6431-6431 (2015-03-17)
T helper (TH) cell polarization during priming is modulated by a number of signals, but whether polarization to a given phenotype also influences recall responses of memory TH cells is relatively unknown. Here we show that miR-181a is selectively induced
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