Chemical Name

 L-Hydroxyproline

Molecular Structure

Molecular Formula

C5H9NO3

Molecular Weight

131.13

Characteristics

White flaky crystal or crystalline powder

Packing

25㎏/drum，25㎏/carton

Quality  Standard

AJI92/USP28/EP5/FCCIV

Specification                                                                     

Specific rotation[a]_D^20°          

-74.0°~ -77.0°          

State of solution

≥95.0%

Chloride(Cl)

≤0.02%

Ammonium(NH4)                    

≤0.02%               

Sulfate(SO4)                            

≤0.020%       

Iron(Fe)                             

≤10PPm           

Heavy metals(Pb)                   

≤10PPm              

Arsenic(As₂O₃)                     

≤1PPm               

Other amio acids

Conforms

Loss on drying                      

≤0.20%

Residue on ignition (Sulfated)                           

≤0.10%

Assay                                   

98.5～101.0%             

PH

5.0～6.5