2,3-Pentanedione
2,3-Pentanedione structure
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Common Name | 2,3-Pentanedione | ||
|---|---|---|---|---|
| CAS Number | 600-14-6 | Molecular Weight | 100.116 | |
| Density | 1.0±0.1 g/cm3 | Boiling Point | 108.0±0.0 °C at 760 mmHg | |
| Molecular Formula | C5H8O2 | Melting Point | -52 °C | |
| MSDS | Chinese USA | Flash Point | 18.9±0.0 °C | |
| Symbol |
GHS02, GHS07 |
Signal Word | Danger | |
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Olfactometry Profiles and Quantitation of Volatile Sulfur Compounds of Swiss Tilsit Cheeses.
J. Agric. Food Chem. 63 , 7511-21, (2015) To establish the odor profiles of three differently fabricated commercial Swiss Tilsit cheeses, analyses were conducted using headspace solid-phase microextraction gas chromatography-mass spectrometry/pulsed flame photometric detection and gas chromatography-... |
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Method development by GC-ECD and HS-SPME-GC-MS for beer volatile analysis.
Food Chem. 167 , 71-7, (2014) 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 microextra... |
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Postmitotic diversification of olfactory neuron types is mediated by differential activities of the HMG-box transcription factor SOX-2.
EMBO J. 34 , 2574-89, (2015) Diversification of neuron classes is essential for functions of the olfactory system, but the underlying mechanisms that generate individual olfactory neuron types are only beginning to be understood. Here we describe a role of the highly conserved HMG-box tr... |
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Evaluation of electronic cigarette liquids and aerosol for the presence of selected inhalation toxins.
Nicotine Tob. Res. 17(2) , 168-74, (2015) 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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Extension of a dynamic headspace multi-volatile method to milliliter injection volumes with full sample evaporation: Application to green tea.
J. Chromatogr. A. 1421 , 103-13, (2015) An extension of multi-volatile method (MVM) technology using the combination of a standard dynamic headspace (DHS) configuration, and a modified DHS configuration incorporating an additional vacuum module, was developed for milliliter injection volume of aque... |
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Towards diacetyl-less brewers' yeast. Influence of ilv2 and ilv5 mutations.
J. Basic Microbiol. 28(3) , 175-83, (1988) During alcoholic fermentations, the off-flavour compound diacetyl is formed non-enzymatically from acetolactate leaking out from the cells. Acetolactate is an intermediate in the biosynthesis of valine. In beer fermentation, the amount of diacetyl is reduced ... |
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The Caenorhabditis elegans odr-2 gene encodes a novel Ly-6-related protein required for olfaction.
Genetics 157(1) , 211-24, (2001) Caenorhabditis elegans odr-2 mutants are defective in the ability to chemotax to odorants that are recognized by the two AWC olfactory neurons. Like many other olfactory mutants, they retain responses to high concentrations of AWC-sensed odors; we show here t... |
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Characterization of two aldo-keto reductases from Gluconobacter oxydans 621H capable of regio- and stereoselective alpha-ketocarbonyl reduction.
Appl. Microbiol. Biotechnol. 87(4) , 1415-26, (2010) Two cytosolic NADPH-dependent carbonyl reductases from Gluconobacter oxydans 621H, Gox0644 and Gox1615, were heterologously produced in Escherichia coli. The recombinant proteins were purified to homogeneity and characterized. Gox0644 and Gox1615 were dimers ... |
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Bronchial and bronchiolar fibrosis in rats exposed to 2,3-pentanedione vapors: implications for bronchiolitis obliterans in humans.
Toxicol. Pathol. 40(3) , 448-65, (2012) 2,3-Pentanedione (PD) is a component of artificial butter flavorings. The use of PD is increasing since diacetyl, a major butter flavorant, was associated with bronchiolitis obliterans (BO) in workers and has been removed from many products. Because the toxic... |
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The EGL-4 PKG acts with KIN-29 salt-inducible kinase and protein kinase A to regulate chemoreceptor gene expression and sensory behaviors in Caenorhabditis elegans.
Genetics 180(3) , 1475-91, (2008) The regulation of chemoreceptor (CR) gene expression by environmental signals and internal cues may contribute to the modulation of multiple physiological processes and behavior in Caenorhabditis elegans. We previously showed that KIN-29, a homolog of salt-in... |