Premium Ingredient Co., Ltd.

China Manufacturer with main products: Glutamine, Glycine, Sodium Hyaluronate, l-Citrulline, Vitamin B1, Ascobyl Palmitate, l-Lysine Monohydrochloride, l-Cysteine Hcl Mono

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Quick Details

  • CAS No.: 52-90-4
  • Grade Standard: Food Grade,Medicine Grade


Supplier: Premium Ingredient Co.,Ltd

Product Name: L-Cysteine        Cas No.:52-90-4   Quality Standard: AJI97
Description: white crystals or crystalline powder.
Solubility (H2O, g/100g): about 16(20°)
Test item
Specific rotation
+8.3 to +9.5°
State of solution
Not less than 95.0%
Not more than 0.04%
Not more than 0.02%
Not more than 0.030%
Not more than 10ppm
Heavy metals(Pb)
Not more than 10ppm
Not more than 1ppm
Other Amino Acids
Loss on drying
Not more than 0.5%
Residue on ignition
Not more than 0.10%
98.0 to 101.0%
4.5 to 5.5
Storage: Preserve in tight containers at controlled room temperature.
Recommended limit: 1 year

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