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Food safety and quality
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| Flavouring |
1-Hydroxy-2-butanone |
| Synonym(s) |
2-Oxo-1-butanol;Propionyl carbinol;Ethyl hydroxymethyl ketone;1-Butanol-2-one |
| Latest JECFA evaluation |
2007 (Session 68) |
| Status of specification |
Full |
| Information required |
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| Chemical name |
1-Hydroxybutan-2-one |
| JECFA number |
1717 |
| CAS number |
5077-67-8 |
| FEMA number |
3173 |
| COE number |
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| FLAVIS number |
07.090 |
| Molecular weight |
88.11 |
| Chemical formula |
C4H8O2 |
| 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 |
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| Refractive index |
1.417-1.423 |
| Specific gravity |
1.017-1.022 (20°) |
| Other requirements |
Also contains 5-10% acetoin |
| ID Test |
MS |
| Spectrum |

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