Food safety and quality
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Flavouring |
(E)-6-Methyl-3-hepten-2-one |
Synonym(s) |
trans-6-Methylhept-3-en-2-one |
Latest JECFA evaluation |
2002 (Session 59) |
Status of specification |
Full |
Information required |
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Chemical name |
(E)-6-Methylhept-3-en-2-one |
JECFA number |
1138 |
CAS number |
20859-10-3 |
FEMA number |
4001 |
COE number |
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FLAVIS number |
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Molecular weight |
126.2 |
Chemical formula |
C8H14O |
Physical form/odour |
Colourless liquid; oily-green, pungent herbaceous odour |
Solubility |
insoluble in water; soluble in fats and non-polar solvents |
Solubility in ethanol |
Miscible at room temperature |
Boiling point (°C) |
170-180° |
Assay min % |
96% |
Acid value max |
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Refractive index |
1.438-1.447 |
Specific gravity |
0.840-0.850 |
Other requirements |
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ID Test |
NMR |
Spectrum |
![](https://www.fao.org/fileadmin/user_upload/jecfa/img/1138.gif)
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