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Online Edition: "Specifications for Flavourings"
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| Flavouring |
2,3-Pentadione |
| Synonym(s) |
Acetyl propionyl
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
Pentane-2,3-dione
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| JECFA number |
410 |
| CAS number |
600-14-6
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| FEMA number |
2841
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| COE number |
2039
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| FLAVIS number |
07.060
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| Molecular weight |
100.12 |
| Chemical formula |
C5H8O2
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| Physical form/odour |
yellow to green liquid with a penetrating, buttery odour on dilution |
| Solubility |
insoluble in glycerol and water; miscible with alcohol, propylene glycol, fixed oils |
| Solubility in ethanol |
1 ml in 3 ml 50% alcohol |
| Boiling point (°C) |
108 |
| Assay min % |
93 |
| Acid value max |
- |
| Refractive index |
1.402-1.406 |
| Specific gravity |
0.979-0.985 |
| Other requirements |
SC: 2,5-diethylcyclohexadien-1,4-dione (dimer of 2,3-pentadione) |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/410.gif
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