69043
2,3-戊二酮
analytical standard
别名:
乙酰基丙酰
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关于此项目
线性分子式:
CH3CH2COCOCH3
化学文摘社编号:
分子量:
100.12
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
209-984-8
Beilstein/REAXYS Number:
1699638
MDL number:
InChI key
TZMFJUDUGYTVRY-UHFFFAOYSA-N
InChI
1S/C5H8O2/c1-3-5(7)4(2)6/h3H2,1-2H3
SMILES string
CCC(=O)C(C)=O
grade
analytical standard
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
Quality Level
bp
110-112 °C (lit.)
mp
−52 °C (lit.)
density
0.957 g/mL at 25 °C (lit.)
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
format
neat
storage temp.
2-8°C
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Application
使用顶空-气相色谱技术（HS-GC）测定啤酒样品中的 2,3-戊二酮时，2,3-戊二酮可作为参考标准品。
有关合适的仪器技术的更多信息，请参阅产品的分析证书。想要获得更多支持，请联系技术服务部。
Disclaimer
对空气和光敏感；在氩气下包装
signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2 - Skin Sens. 1B - STOT RE 2
存储类别
3 - Flammable liquids
flash_point_f
66.2 °F - open cup
flash_point_c
19 °C - open cup
法规信息
危险化学品
此项目有
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
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