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Online Edition: "Specifications for Flavourings"
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| Flavouring |
alpha-Ionone |
| Synonym(s) |
alpha-Cyclocitrylideneacetone
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| Latest JECFA evaluation |
2001 (Session 57)
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| Status of specification |
Full |
| Chemical name |
4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one
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| JECFA number |
388 |
| CAS number |
127-41-3
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| FEMA number |
2594
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| COE number |
141
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| FLAVIS number |
-
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| Molecular weight |
192.3 |
| Chemical formula |
C13H20O
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| Physical form/odour |
colourless to pale-yellow liquid with a warm, woody, violet-floral odour |
| Solubility |
soluble in alcohol, propylene glycol, most fixed oils; insoluble in glycerol and water |
| Solubility in ethanol |
1 ml in 3 ml 70% alcohol; 1 ml in 10 ml 60% alcohol |
| Boiling point (°C) |
237 |
| Assay min % |
85 (min. 95% sum of isomers) |
| Acid value max |
- |
| Refractive index |
1.497-1.502 |
| Specific gravity |
0.927-0.933 |
| Other requirements |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/388.gif
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