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Food safety and quality
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| Flavouring |
(+/-)-2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde |
| Synonym(s) |
Lilac aldehyde |
| Latest JECFA evaluation |
2004 (Session 63) |
| Status of specification |
Full |
| Information required |
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| Chemical name |
2-(5-Methyl-5-vinyl-tetrahydrofuran-2-yl)propionaldehyde |
| JECFA number |
1457 |
| CAS number |
51685-39-3 |
| FEMA number |
4058 |
| COE number |
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| FLAVIS number |
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| Molecular weight |
168.24 |
| Chemical formula |
C10H16O2 |
| Physical form/odour |
Clear colourless liquid; Floral aroma reminiscent of lilac |
| Solubility |
Insoluble in water |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
56-60° (1.2-1.4 mm Hg) |
| Assay min % |
90% (sum of +/- isomers) |
| Acid value max |
5 |
| Refractive index |
1.450-1.459 |
| Specific gravity |
0.951-0.961 (20°) |
| Other requirements |
SC: 6-hydroxy-2,6-dimethyl-2,7-octadienal |
| ID Test |
NMR |
| Spectrum |
 
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