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You are here:   Home > EZSourcing > Sourcing Request > L-Cysteine HCL MONO 7048/4/6

L-Cysteine HCL MONO 7048/4/6
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-Cysteine HCL MONO CAS NO：7048-4-6Chemical NameL-Cysteine HCL MONO Molecular Structure
Molecular FormulaC3H7NO2S·HCL·H2OMolecular Weight175.63CharacteristicsWhite crystalline powder,tasteless,easily soluble in water but insoluble in alcohol and etherPacking25㎏/drum，25㎏/cartonQuality  StandardAJI92/USP28/EP5/FCCIV

Specification

 

Specific rotation[a]D20°          

+5.5°～+7.0°

+8.0 ～+10.1°

Calc.as.cysteine       

State of solution

Clear and colorless

Heavy metals(Pb)  

≤10PPm

Residue on ignition                           

≤0.1%  

Iron(Fe)

≤10PPm

Loss on drying                              

8.5～12.0％  

Other amino acids                          

Chromatographically not detectable  

Arsenic(As2O3) 

≤1PPm  

Chloride(CI) 

19.89～20.29％

Ammonium(NH4)

≤0.02%

Sulfate(SO4)    

≤0.02%

Assay                                  

99.0～100.5%             

PH

1.5～2.0

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