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Merck

69043

Supelco

2,3-Pentanedione

analytical standard

Synonym(s):

Acetylpropionyl

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About This Item

Linear Formula:
CH3CH2COCOCH3
CAS Number:
Molecular Weight:
100.12
Beilstein:
1699638
EC Number:
MDL number:
UNSPSC Code:
85151701
PubChem Substance ID:
NACRES:
NA.24

Pricing and availability is not currently available.

grade

analytical standard

Quality Level

Assay

≥96.0% (GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

≤1.0% water

refractive index

n20/D 1.401-1.409
n20/D 1.404 (lit.)

bp

110-112 °C (lit.)

mp

−52 °C (lit.)

density

0.957 g/mL at 25 °C (lit.)

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This Item
919608925489804983
reaction suitability

reagent type: catalyst
reaction type: Cross Couplings

reaction suitability

reagent type: catalyst
reaction type: Cross Couplings

reaction suitability

reagent type: catalyst
reaction type: Cross Couplings

reaction suitability

reagent type: catalyst
reaction type: Cross Couplings

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

mp

>300 °C

mp

>300 °C

mp

>300 °C

mp

134-208 °C (MP data is all decomp.)

form

powder

form

powder

form

powder

form

solid

Application

2,3-Pentanedione may be used as a reference standard in the determination of 2,3-pentanedione in beer samples using headspace-gas chromatographic technique (HS-GC).[1]
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Caution

air and light sensitive; packaged under argon

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2 - Skin Sens. 1B - STOT RE 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

66.2 °F - open cup

Flash Point(C)

19 °C - open cup


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Certificates of Analysis (COA)

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The determination of diacetyl and 2,3-pentanedione in beer head space by chromatography.
Harrison FAG, et al.
Journal of the Institute of Brewing, 71(4), 336-341 (1965)
Bruna R Toledo et al.
Journal of chromatography. A, 1346, 1-7 (2014-05-03)
Solid-phase microextraction (SPME) using cross-linked polymeric ionic liquid (PIL)-based sorbent coatings was used to extract volatile aroma-related compounds from coffee samples. Several PIL-based coatings were screened alongside a commercial poly(acrylate) (PA) SPME coating. The best performing PIL-based SPME fiber, poly(1-vinyl-3-hexadecylimidazolium
Gisele C da Silva et al.
Food chemistry, 167, 71-77 (2014-08-26)
Two methods for the extraction, identification and quantification of the highest occurrence and lowest perception threshold off-flavours in fifteen different samples of Brazilian Pilsner beers were developed. For this purpose, headspace solid phase microextraction in combination with a gas chromatography
Konstantinos E Farsalinos et al.
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 17(2), 168-174 (2014-09-03)
The purpose of this study was to evaluate sweet-flavored electronic cigarette (EC) liquids for the presence of diacetyl (DA) and acetyl propionyl (AP), which are chemicals approved for food use but are associated with respiratory disease when inhaled. In total

Protocols

-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde

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