Online Edition: "Specifications for Flavourings"


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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
Chemical name L-Glutamic acid
JECFA number 1420
CAS number 56-86-0  
FEMA number 3285
COE number -
FLAVIS number -
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) -
Assay min % 98%
Acid value max -
Refractive index -
Specific gravity -
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 http://www.fao.org/ag/agn/jecfa-flav/img/img/1420.gif