Food safety and quality
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Flavouring |
Butyl isobutyrate |
Synonym(s) |
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Latest JECFA evaluation |
1997 (Session 49) |
Status of specification |
Full |
Information required |
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Chemical name |
Butyl-2-methyl propanoate |
JECFA number |
188 |
CAS number |
97-87-0 |
FEMA number |
2188 |
COE number |
291 |
FLAVIS number |
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Molecular weight |
144.21 |
Chemical formula |
C8H16O2 |
Physical form/odour |
colourless liquid/fresh fruity,apple-pineapple odour |
Solubility |
miscible in alcohol, ether, most fixed oils; insoluble in glycerin, propylene glycol, water |
Solubility in ethanol |
1 ml in 7 ml 60% alcohol |
Boiling point (°C) |
166° |
Assay min % |
97.0% |
Acid value max |
1 |
Refractive index |
1.401-1.404 |
Specific gravity |
0.859-0.864 |
Other requirements |
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ID Test |
IR |
Spectrum |
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