| Message: | S-Carboxymethyl-L-Cysteine
S-Carboxymethyl-L-Cysteine( Carbocysteine)(S-CMC)
CAS:638-23-3;186537-58-6
EINECS:211-327-5
Molecular formula:C5H9NO4S
Molecular weight:179.194
Assay:98.5-101.0%
Appearance: White crystals or crystalline powder
Packaging:25kg/drum
Product COA
Product: S-Carboxymethyl-L-Cysteine CAS No:(638-23-3)
Item Specification(AJI92) Result
Specific rotation[a]D20 -33.5° TO -36.5° -33.9°
State of solution ( Transmittance) Clear and colorless≥98% 99.3%
Chloride(Cl) ≤ 0.04% 0.038%
Sulfate (SO4) ≤ 0.020% ≤ 0.02%
Iron(Fe) ≤ 10ppm ≤ 3ppm
Heavy metals(Pb) ≤ 10ppm ≤ 5ppm
Arsenic(as As2o3) ≤ 1ppm ≤ 1ppm
other amino acids Chromatographically Conforms
Loss on drying ≤ 0.5% 0.2%
Residue on ignition(sulfated) ≤ 0.1% 0.05%
Assay 98.5% to 101.0% 99.7%
PH 2.0 to 3.5 2.8
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