Food safety and quality
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Flavouring |
4-Hexen-3-one |
Synonym(s) |
2-Hexen-4-one |
Latest JECFA evaluation |
2020 (Session 89) |
Status of specification |
Full |
Information required |
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Chemical name |
Hexen-4-en-3-one |
JECFA number |
1125 |
CAS number |
2497-21-4 |
FEMA number |
3352 |
COE number |
718 |
FLAVIS number |
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Molecular weight |
98.14 |
Chemical formula |
C6H10O |
Physical form/odour |
Colourless to yellow liquid; pugent, acrid, metallic odour |
Solubility |
slightly soluble in water; soluble in oil |
Solubility in ethanol |
Miscible at room temperature |
Boiling point (°C) |
93° (150 mm Hg) |
Assay min % |
95% (sum of isomers) |
Acid value max |
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Refractive index |
1.437-1.443 |
Specific gravity |
0.855-0.861 |
Other requirements |
Isomers: 90-95% trans-4-hexen-3-one and 1-5% cis-4-hexene-3-one |
ID Test |
NMR |
Spectrum |
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