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Online Edition: "Specifications for Flavourings"
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| Flavouring |
1-Hydroxy-2-butanone |
| Synonym(s) |
1-Butanol-2-one
Ethyl hydroxymethyl ketone
2-Oxo-1-butanol
Propionyl carbinol
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| Latest JECFA evaluation |
2007 (Session 68)
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| Status of specification |
Full |
| Chemical name |
1-Hydroxybutan-2-one
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| JECFA number |
1717 |
| CAS number |
5077-67-8
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| FEMA number |
3173
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| COE number |
-
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| FLAVIS number |
07.090
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| Molecular weight |
88.11 |
| Chemical formula |
C4H8O2
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| Physical form/odour |
Colourless liquid; Fruity aroma |
| Solubility |
Insoluble in water; soluble in diethyl ether |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
152-154° |
| Assay min % |
90% |
| Acid value max |
- |
| Refractive index |
1.417-1.423 |
| Specific gravity |
1.017-1.022 (20°) |
| Other requirements |
Also contains 5-10% acetoin |
| ID Test |
MS |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1717-ms.gif
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