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N-Acetyl-L-Cysteine
N-Acetyl-L-Cysteine

N-Acetyl-L-Cysteine CAS NO 616-91-1

 

  N-Acetyl-L-Cysteine     CAS NO 616-91-1

 

Chemical Name

N-Acetyl-L-Cysteine

Molecular Structure

 

Molecular Formula

C5H9NO3S

Molecular Weight

163.20

Characteristics

White crystalline powder

Packing

25kg/drum,25kg/carton

Quality  Standard

AJI92/USP28/EP5/FCCIV

Specification

 

Specific rotation[a]D20°          

+21.3 to +27.0         

State of solution

≥98.0%

Chloride(CL)

Ammonium(NH4)

Sulfate(SO4)

≤0.04%

≤0.02%

≤ 0.030%

Iron(Fe)

≤20PPm

Heavy metals(Pb)                           

≤10PPm  

Other amino acids                          

Chromatographically  Not detectable   

Arsenic(As2O3)        

≤1PPm              

Loss on drying

≤0.5%

Residue on ignition

≤0.20%

Assay                                  

98.5~101.0%             

PH                    

2.0~2.8

Melting point

106 to 110

 

 

N-Acetyl-L-Cysteine

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