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HUBEI SGP Group/WUHAN BUYOUR AMINO ACID CO., LTD
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 Click to enlarge image
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 Model Number |
SGP-B-06 |
CAS No.:638-23-3
Structural Formula: C5H9NO4S
Molecular weight:179.19
Description:White crystalline powder.insoluble in cold water and organic solvent such as grain alcohol and acet.
but soluble in basic and acidic aqueous solution.
Packing:25KG/ Paper drum
CERTIFICATE OF ANALYSIS
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Product: S-Carboxymethyl-L-Cysteine CAS No:(638-23-3)
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Item
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Specification(AJI92)
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Result
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Specific rotation[a]D20
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-33.5?nbsp;TO -36.5?/SPAN>
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-33.9?/SPAN>
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State of solution ( Transmittance)
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Clear and colorless
= 98.0%
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99.3%
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Chloride(Cl)
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= 0.04%
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0.038%
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Sulfate (SO4)
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= 0.020%
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= 0.02%
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Iron(Fe)
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= 10ppm
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= 3ppm
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Heavy metals(Pb)
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= 10ppm
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= 5ppm
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Arsenic(as As2o3)
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= 1ppm
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= 1ppm
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other amino acids
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Chromatographically
Not detectable
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Conforms
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Loss on drying
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= 0.5%
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0.2%
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Residue on ignition(sulfated)
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= 0.1%
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0.05%
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Assay
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98.5% to 101.0%
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99.7%
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PH
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2.0 to 3.5
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2.8
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Conclusion: The products conform to the AJI92 standard.
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