|
Food safety and quality
|
|
|
| |
| Flavouring |
L-Threonine |
| Synonym(s) |
2-Amino-3-hydroxybutanoic acid |
| Latest JECFA evaluation |
2012 (Session 76) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
(2S,3R)-2-Amino-3-hydroxybutanoic acid |
| JECFA number |
2119 |
| CAS number |
72-19-5 |
| FEMA number |
4710 |
| COE number |
|
| FLAVIS number |
|
| Molecular weight |
119.12 |
| Chemical formula |
C4H9NO3 |
| Physical form/odour |
White crystalline powder; slight savoury aroma |
| Solubility |
Sparingly soluble in water; Soluble in buffer systems pH 5.5 |
| Solubility in ethanol |
Practically insoluble |
| Boiling point (°C) |
NA |
| Assay min % |
98% |
| Acid value max |
|
| Refractive index |
NA |
| Specific gravity |
NA |
| Other requirements |
m.p. 283-284° (decomposition) |
| ID Test |
IR |
| Spectrum |
 
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