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Food safety and quality
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| Flavouring |
4-Methyl-2-pentanone |
| Synonym(s) |
MIBK;Methyl isobutyl ketone |
| Latest JECFA evaluation |
1998 (Session 51) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
4-Methylpentan-2-one |
| JECFA number |
301 |
| CAS number |
108-10-1 |
| FEMA number |
2731 |
| COE number |
151 |
| FLAVIS number |
|
| Molecular weight |
100.16 |
| Chemical formula |
C6H12O |
| Physical form/odour |
colourless, mobile liquid with a fruity, ethereal odour |
| Solubility |
miscible with alcohol, ether, and to 1 ml in 50 ml of water |
| Solubility in ethanol |
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| Boiling point (°C) |
117° |
| Assay min % |
99.0% |
| Acid value max |
2 |
| Refractive index |
1.391-1.396 |
| Specific gravity |
0.796-0.799 |
| Other requirements |
Distillation Range: 114-117°; Water: =<0.1% |
| ID Test |
IR |
| Spectrum |
 
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