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Item
Standard
Appearance
White powder
Specific rotation[α]20/D
(C=10 in 2N HCl)
-31.0 to -32.2 Degree
State of solution
(Transmittance)
Not less than 95.0%
Chloride (Cl)
Not more than 0.10%
Heavy metal(Pb)
Not more than 10ppm
Arsenic(As2O3)
Not more than 2ppm
Loss on drying
Not more than 0.20%
Residue on ignition(sulfated)
Not more than 0.20%
Assay
98.0 to101.0%
D-Glutamic acid
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