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Online Edition: "Specifications for Flavourings"
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| Flavouring |
Acetoin |
| Synonym(s) |
Acetyl methyl carbinol
Dimethylketol
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| Latest JECFA evaluation |
1998 (Session 51)
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| Status of specification |
Full |
| Chemical name |
3-Hydroxy-2-butanone
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| JECFA number |
405 |
| CAS number |
513-86-0
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| FEMA number |
2008
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| COE number |
749
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| FLAVIS number |
-
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| Molecular weight |
88.11 |
| Chemical formula |
C4H8O2
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| Physical form/odour |
colourless to pale yellow liquid (monomer), or white crystalline powder (dimer) with a buttery odour |
| Solubility |
insoluble in vegetable oils; miscible with alcohol, water, propylene glycol |
| Solubility in ethanol |
- |
| Boiling point (°C) |
148 |
| Assay min % |
96.0 |
| Acid value max |
- |
| Refractive index |
1.417-1.420 |
| Specific gravity |
1.005-1.019 |
| Other requirements |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/405.gif
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