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You are here:   Home > EZSourcing > Sourcing Request > L-Leucine

L-Leucine
Categories: Active Pharmaceutical Ingredients>Biochemical Ingredients>Amino Acids and Derivatives
Expected Quantity: 1000
Valid To: 2018-06-09
Delivery To: China Mainland
Date Posted: 2018-04-08
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Request Details

L-LeucineCAS NO：61-90-5Chemical NameL-LeucineMolecular Structure
Molecular FormulaC6H13NO2Molecular Weight131.17Characteristics

White crystalling powder or white crystals.Odorless,slightly bitter taste.Freely soluble in formic acid,sparingly soluble in water,very slightly soluble in ethanol or in ether, dissoves in dilute hydrochloric acid.

Packing25㎏/drum，25㎏/cartonQuality  StandardAJI92/USP28/EP5/FCCIV

Specification

 

Specific rotation[a]D20°          

+14.9～+16.0°         

State of solution

≥98.0%

Heavy metals(Pb)  

≤10PPm

Residue on ignition                           

≤0.1%  

Iron(Fe)

≤10PPm

Loss on drying                              

≤0.2%  

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

5.5～6.5

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