L-Glu amino acid

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amino acid
Product Name: H-Glu-OH CAS#: 56-86-0
Synonyms: L-Glutamic acid Molecular Formula: C5H9NO4
Molecular Weight: 147.13


Specifications: (Reference standard: AJI92)
Item
Standard

Appearance
White crystals or crystalline powder

Specific rotation[α]20/D
(C=10 in 2N HCl)
+31.5 to +32.2°

Chloride (Cl)
Not more than 0.020%

Ammonium (NH4)
Not more than 0.02%

Sulfate (SO4)
Not more than 0.020%

Iron (Fe)
Not more than 10ppm

Heavy metal(Pb)
Not more than 10ppm

Arsenic(As2O3)
Not more than 1ppm

Other Amino Acids
Chromatographically
Not detectable

Loss on drying
Not more than 0.10%

Residue on ignition(sulfated)
Not more than 0.10%

Assay
99.0% to 100.5%

pH
3.0 to 3.5