Sell N-Acetyl L-Cysteine CAS 616-91-1

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Name N-Acetyl L-Cysteine
CAS 616-91-1
Appearance White crystals or crystalline powder
Specific rotation + 21.3 -- +27.0
State of solution More than 98.0%
PH 2.0 - 2.8
Loss On Drying Not more than 0.50%
Chloride (Cl) Not more than 0.040%
Ammonium (NH4) Not more than 0.020%
Sulfate (SO4) Not more than 0.030%
Iron (Fe) Not more than 20ppm
Heavy metals(Pb) Not more than 10ppm
Melting point 106 -- 110 C
Arsenic (As2o3) Not more than 1ppm
Other Amino Acids Chromatographically not detectable
Residue on ignition Not more than 0.20%
Assay 98.5 - 101.0%

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