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Online Edition: "Specifications for Flavourings"
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| Flavouring |
2,4-Dimethyl-2-pentenoic acid |
| Synonym(s) |
-
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
2,4-Dimethyl-2-pentenoic acid
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| JECFA number |
1211 |
| CAS number |
66634-97-7
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| FEMA number |
3143
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| COE number |
-
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| FLAVIS number |
08.044
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| Molecular weight |
128.17 |
| Chemical formula |
C7H12O2
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| Physical form/odour |
Colourless liquid; pungent, sickly sweet |
| Solubility |
Very slightly soluble in water; soluble in oils |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
133-134° (15 mm Hg) |
| Assay min % |
92 (sum of isomers) |
| Acid value max |
- |
| Refractive index |
1.459-1.467 |
| Specific gravity |
0.991-0.999 |
| Other requirements |
SC: 4-methyl-2-methylenevaleric acid |
| ID Test |
NMR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1211.gif
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