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