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Online Edition: "Specifications for Flavourings"
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| Flavouring |
4-Methyl-2-pentanone |
| Synonym(s) |
Methyl isobutyl ketone
MIBK
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| Latest JECFA evaluation |
1998 (Session 51)
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| Status of specification |
Full |
| Chemical name |
4-Methylpentan-2-one
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| JECFA number |
301 |
| CAS number |
108-10-1
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| FEMA number |
2731
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| COE number |
151
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| FLAVIS number |
-
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| Molecular weight |
100.16 |
| Chemical formula |
C6H12O
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| 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 |
- |
| Boiling point (°C) |
117 |
| Assay min % |
99.0 |
| Acid value max |
2.0 |
| 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 |
http://www.fao.org/ag/agn/jecfa-flav/img/img/301.gif
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