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You are here:   Home > EZSourcing > Sourcing Request > L-Methionine 63-68-3

L-Methionine 63-68-3
Categories: Active Pharmaceutical Ingredients>Biochemical Ingredients>Amino Acids and Derivatives
Expected Quantity: 1000
Valid To: 2018-07-11
Delivery To: China Mainland
Date Posted: 2018-04-09
The sourcing request is closed now.
Request Details

 

L-MethionineCAS NO：63-68-3Chemical NameL-MethionineMolecular Structure
Molecular FormulaC5H11NO2SMolecular Weight149.21CharacteristicsWhite crystalline powderPacking25㎏/drum，25㎏/cartonQuality  StandardAJI92/USP28/EP5/FCCIV

Specification

 

Specific rotation[a]D20°          

+23.0°~+24.5°          

State of solution

Clear and colorless

(Tranamittance)

≥98.0%

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                                   

99.0～100.5%             

PH                                         

5.6～6.1              

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