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China
Personne àcontacter Ms. Yin
Huanghai, Nantong, Jiangsu
L-Cysteine CAS: ******4 Assay *8.0~**1.0% Specific rotation[a]D*0° *8.3° ~*9.5° State of solution >=*5.0% Chloride(Cl) >=0.*2% Ammonium(NH4) >=0.*2% Sulfate(SO4) >=0.**0% Iron(Fe) <=*0ppm Heavy metals(Pb) <=*0ppm Arsenic(As2O3) <=1ppm Loss on drying <=0.5% Residue on ignition <=0.1% pH 4.5~5.5
