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Merck

05581

Acetylacetone

analytical standard

Synonym(s):

2,4-Pentanedione

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About This Item

Linear Formula:
CH3COCH2COCH3
CAS Number:
123-54-6
Molecular Weight:
100.12
NACRES:
NA.24
PubChem Substance ID:
329748100
eCl@ss:
39021208
UNSPSC Code:
41116107
EC Number:
204-634-0
MDL number:
MFCD00008787
Beilstein/REAXYS Number:
741937

Product Name

Acetylacetone, analytical standard

InChI key

YRKCREAYFQTBPV-UHFFFAOYSA-N

InChI

1S/C5H8O2/c1-4(6)3-5(2)7/h3H2,1-2H3

SMILES string

CC(=O)CC(C)=O

grade

analytical standard

vapor density

3.5 (vs air)

vapor pressure

6 mmHg ( 20 °C)

assay

≥99.6% (GC)

autoignition temp.

662 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

11.4 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.452 (lit.)
n20/D 1.452

bp

140.4 °C (lit.)

mp

−23 °C (lit.)

solubility

H2O: soluble

density

0.975 g/mL at 25 °C (lit.)

application(s)

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

format

neat

Quality Level

100

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Application

Acetylacetone has been used as a volatile eluent modifier to remediate the detrimental impacts of metal cations during the quantification of energy metabolites by ultrahigh pressure-liquid chromatography-electrospray-tandem mass spectrometry (UHPLC-ESI-MS). It has also been used as a derivatization agent for aldehydes.(3

General description

Acetylacetone is a β-diketone, which contains two carbonyl groups and one active methylene group.

pictograms

FlameSkull and crossbones
GHS02,GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

95.0 °F - closed cup

flash_point_c

35 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN3955
BCCL3503
BCCH7669
BCCD6958
BCCB7287

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Controlling detrimental effects of metal cations in the quantification of energy metabolites via ultrahigh pressure-liquid chromatography-electrospray-tandem mass spectrometry by employing acetylacetone as a volatile eluent modifier
Siegel D, et al.
Journal of Chromatography A, 1294(2), 87-97 (2013)
Automatized flow-batch method for fluorescent determination of free glycerol in biodiesel samples using on-line extraction
Lima MB, et al.
Talanta, 89(2), 21-26 (2012)
2, 4-pentanedione
Ballantyne B
Journal of Applied Toxicology, 21(2), 165-171 (2001)
Liquid-phase microextraction with in-drop derivatization combined with microvolume fluorospectrometry for free and hydrolyzed formaldehyde determination in textile samples
Saenz M, et al.
Analytica Chimica Acta, 687(1), 50-55 (2011)
Rolando R Lozada-García et al.
Physical chemistry chemical physics : PCCP, 14(10), 3450-3459 (2012-02-07)
The photochemistry of the chelated enol form of acetylacetone (AcAc) was investigated by UV excitation of the S(2) state at 266 nm in parahydrogen matrices, complemented by experiments in neon and normal hydrogen matrices. Infrared (IR) spectroscopy, combined with theoretical
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