Food safety and quality
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Flavouring |
L-Glutamic acid |
Synonym(s) |
Aminoglutaric acid, 1-aminopropane-1,3-dicarboxylic acid;L-2-Aminopentanedioic acid |
Latest JECFA evaluation |
2004 (Session 63) |
Status of specification |
Full |
Information required |
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Chemical name |
L-Glutamic acid |
JECFA number |
1420 |
CAS number |
56-86-0 |
FEMA number |
3285 |
COE number |
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FLAVIS number |
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Molecular weight |
147.13 |
Chemical formula |
C5H9O4N |
Physical form/odour |
White free-flowing, crystalline powder; Yeasty, bread-like aroma |
Solubility |
Slight soluble in water and ether |
Solubility in ethanol |
Insoluble |
Boiling point (°C) |
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Assay min % |
98% |
Acid value max |
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Refractive index |
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Specific gravity |
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Other requirements |
mp: 247-249°; Sp.rotation = +30 to +32° (22°, 6N HCl); Complies with purity criteria for L-Glutamic acid in JECFA Monographs 1 |
ID Test |
IR |
Spectrum |
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