Item
Standard
Analysis data
Appearance
White fine crystals or White power
conforms
Specific rotation(20/D)
(C=4 in 6N HCL)
-14.0 to -16.0°Degree
-15.0°
Chloride (Cl)
Not more than 0.020%
0.016%
Heavy metals(Pb)
Not more than 10ppm
7ppm
Arsenic(As2O3)
Not more than 1ppm
<1ppm
Other amino acids
Chromatographically
Not detectable
conforms
Loss on drying
Not more than 0.20%
0.10%
Residue on ignition(sulfated)
Not more than 0.10%
0.08%
Assay
98.0 to100.5%
98.5%