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Online Edition: "Specifications for Flavourings"
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| Flavouring |
2-Methyl-2-pentenal |
| Synonym(s) |
2,4-Dimethyl crotonaldehyde
alpha-methyl-beta-Ethyl acrolein
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
2-Methyl-2-pentenal
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| JECFA number |
1209 |
| CAS number |
623-36-9
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| FEMA number |
3194
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| COE number |
-
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| FLAVIS number |
05.090
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| Molecular weight |
98.15 |
| Chemical formula |
C6H10O
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| Physical form/odour |
colourless to yellow-green mobile liquid; powerful grassy green, slightly fruity aroma |
| Solubility |
Insoluble in water; soluble in ether, benzene, methanol |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
137° |
| Assay min % |
92 |
| Acid value max |
3 |
| Refractive index |
1.445-1.453 |
| Specific gravity |
0.855-0.865 |
| Other requirements |
SC: propionaldehyde, propionic acid |
| ID Test |
IR MS |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1209.gif
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