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Online Edition: "Specifications for Flavourings"
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| Flavouring |
Isovaleric acid |
| Synonym(s) |
3-Methylbutyric acid
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| Latest JECFA evaluation |
1998 (Session 51)
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| Status of specification |
Full |
| Chemical name |
Isovaleric acid
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| JECFA number |
259 |
| CAS number |
503-74-2
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| FEMA number |
3102
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| COE number |
8
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| FLAVIS number |
-
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| Molecular weight |
102.13 |
| Chemical formula |
C5H10O2
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| Physical form/odour |
colourless to pale yellow liquid with a disagreeable, rancid, cheese-like odour |
| Solubility |
soluble in alcohol, ether and water |
| Solubility in ethanol |
- |
| Boiling point (°C) |
175 |
| Assay min % |
99.0 |
| Acid value max |
- |
| Refractive index |
1.401-1.405 |
| Specific gravity |
0.923-0.928 |
| Other requirements |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/259.gif
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