White crystalline powder白色结晶体或结晶粉末，易溶于水。
 

    
        
            
            
Item
            
            
            
Standard
            
        
        
            
            
Appearance
            
            
            
White crystalline powder
            
        
        
            
            
Specific rotation[α]20/D
            
(C=8 6N HCL )
            
            
            
+16.5 to ~18.5 Degree
            
        
        
            
            
Transmittance
            
(0.5 in 10ml of H2O)
            
            
            
Not less than 95.0%
            
        
        
            
            
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
            
        
        
            
            
Other Amino Acids
            
            
            
Chromatographically
            
Not detectable
            
        
        
            
            
Loss on drying
            
            
            
Not more than 2.0%
            
        
        
            
            
Residue on ignition(sulfated)
            
            
            
Not more than 0.10%
            
        
        
            
            
Assay
            
            
            
98.5%~101.5%
            
        
    
    
        
            
旋光度
            
+24.5 - +26.5
        
        
            
重金属
            
≤10ppm
        
        
            
含水量
            
≤0.20%
        
        
            
灼烧残渣
            
≤0.10%
        
        
            
含量
            
≥98.0%
        
    

医药中间体，体格增补剂。
 
密封保存