Food safety and quality
|
|
|
Flavouring |
Isobutyl butyrate |
Synonym(s) |
|
Latest JECFA evaluation |
1997 (Session 49) |
Status of specification |
Full |
Information required |
|
Chemical name |
2-Methylpropyl butanoate |
JECFA number |
158 |
CAS number |
539-90-2 |
FEMA number |
2187 |
COE number |
269 |
FLAVIS number |
|
Molecular weight |
144.21 |
Chemical formula |
C8H16O2 |
Physical form/odour |
colourless liquid with a sweet, fruity, apple-like, pineapple-like odour |
Solubility |
soluble in most fixed oils; slightly soluble in water; insoluble in glycerol |
Solubility in ethanol |
1 ml in 8 ml 60% alcohol |
Boiling point (°C) |
157-158° |
Assay min % |
98.0% |
Acid value max |
1 |
Refractive index |
1.402-1.405 |
Specific gravity |
0.858-0.863 |
Other requirements |
|
ID Test |
IR |
Spectrum |

|
|
|
|