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Online Edition: "Specifications for Flavourings"
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| Flavouring |
4-Hydroxy-4-methyl-5-hexenoic acid gamma lactone |
| Synonym(s) |
Lilac lactone
4-Methyl-5-hexen-1,4-olide
5-Methyl-5-vinyl-dihydro-furan-2-one
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
5-Ethinyldihydro-5-methyl-2(3H)-furanone
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| JECFA number |
1157 |
| CAS number |
1073-11-6
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| FEMA number |
4051
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| COE number |
-
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| FLAVIS number |
-
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| Molecular weight |
126.15 |
| Chemical formula |
C7H10O2
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| Physical form/odour |
Clear, colourless liquid; floral aroma |
| Solubility |
Insoluble in water; soluble in nonpolar solvents |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
219° |
| Assay min % |
97 |
| Acid value max |
1 |
| Refractive index |
1.457-1.462 |
| Specific gravity |
1.015-1.025 (20°) |
| Other requirements |
- |
| ID Test |
CNMR HNMR IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1157-cnmr.gif
http://www.fao.org/ag/agn/jecfa-flav/img/img/1157-hnmr.gif
http://www.fao.org/ag/agn/jecfa-flav/img/img/1157-ir.gif
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