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Online Edition: "Specifications for Flavourings"
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| Flavouring |
1-Penten-3-one |
| Synonym(s) |
Ethyl vinyl ketone
Propionyl ethylene
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| Latest JECFA evaluation |
2002 (Session 59)
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| Status of specification |
Full |
| Chemical name |
Pent-1-en-3-one
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| JECFA number |
1147 |
| CAS number |
1629-58-9
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| FEMA number |
3382
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| COE number |
11179
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| FLAVIS number |
-
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| Molecular weight |
84.12 |
| Chemical formula |
C5H8O
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| Physical form/odour |
Liquid, polymerizes readily with heat or in the presence of alkali; powerful penetrating odour |
| Solubility |
insoluble in water; soluble in most organic solvents |
| Solubility in ethanol |
Miscible at room temperature |
| Boiling point (°C) |
68-70° (200 mm Hg) |
| Assay min % |
97 |
| Acid value max |
- |
| Refractive index |
1.417-1.422 |
| Specific gravity |
0.842-0.848 |
| Other requirements |
- |
| ID Test |
NMR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1147.gif
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