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You are here:   Home > EZSourcing > Sourcing Request > L-Tyrosine 60-18-4

L-Tyrosine 60-18-4
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-TyrosineCAS NO：60-18-4Chemical NameL-TyrosineMolecular Structure
Molecular FormulaC9H11NO3Molecular Weight181.19CharacteristicsWhite styli form crystals with bitterness,soluble in dilute acids or basePacking25㎏/drum，25㎏/cartonQuality  StandardAJI92/USP28/EP5/FCCIV

Specification

 

Specific rotation[a]D20°          

-11.3°～-12.1°         

State of solution

≥95.0%

Heavy metals(Pb)  

≤10PPm

Residue on ignition                            

≤0.1%  

Iron(Fe)

≤10PPm

Loss on drying                              

≤0.02%  

Other amino acids                          

Conforms  

Arsenic(As2O3) 

≤1PPm

Chloride(CI) 

≤0.02%

Ammonium(NH4)

≤0.02%

Sulfate(SO4)    

≤0.02%

Assay                                  

99.0～100.5%             

PH

5.0～6.5

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