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Online Edition: "Specifications for Flavourings"
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| Flavouring |
3-Penten-2-one |
| Synonym(s) |
Ethylidene acetone
Methyl propenyl ketone
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| Latest JECFA evaluation |
2002 (Session 59)
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| Status of specification |
Full |
| Chemical name |
Pent-3-en-2-one
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| JECFA number |
1124 |
| CAS number |
625-33-2
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| FEMA number |
3417
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| COE number |
666
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| FLAVIS number |
-
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| Molecular weight |
84.12 |
| Chemical formula |
C5H8O
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| Physical form/odour |
Colourless liquid; fruity odour becoming pungent on storage |
| Solubility |
slightly soluble in water; soluble in oil |
| Solubility in ethanol |
Miscible at room temperature |
| Boiling point (°C) |
122° |
| Assay min % |
98 |
| Acid value max |
- |
| Refractive index |
1.433-1.437 |
| Specific gravity |
0.860-0.865 |
| Other requirements |
- |
| ID Test |
NMR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1124.gif
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