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02469

2-Butanone

analytical standard

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
NACRES:
NA.24
PubChem Substance ID:
329747439
EC Number:
201-159-0
Beilstein/REAXYS Number:
741880
MDL number:
MFCD00011648
UNSPSC Code:
12141716
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grade

analytical standard

Quality Level

100

vapor density

2.49 (vs air)

vapor pressure

71 mmHg ( 20 °C)

assay

≥99.9% (GC)

autoignition temp.

960 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

10.1 %

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

refractive index

n20/D 1.379

bp

80 °C (lit.)

mp

−87 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

format

neat

SMILES string

CC(CC)=O

InChI

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

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

General description

2-Butanone also known as methyl ethyl ketone is a colorless fairly volatile liquid with a pleasant pungent odor. It is primarily used as a solvent, for making other chemicals, and for production of wax from petroleum. It is derived from refluxing methyl acetoacetate and dilute sulphuric acid. It finds application in manufacturing plastic, textile, paints, pharmaceuticals and cosmetics.

Application

2-Butanone may have been used as reference standard in solid-phase microextraction gas-chromatography (SPME-GC) for quantification of volatile compounds from dry-cured hams.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

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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

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Cooper's Toxic Exposures Desk Reference with CD-ROM, 377-377 (1996)
Characterization of French and Spanish dry-cured hams: influence of the volatiles from the muscles and the subcutaneous fat quantified by SPME-GC.
Sanchez-Pe?a CM
Meat Science, 69(4), 635-645 (2005)
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
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