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L-Cysteine Free Base

This product is currently unavailable, but you may contact the supplier directly, for further interest.

Product Details

Basic Info.

Function:Nutritional Therapeutics
Grade Standard:Medicine Grade
Export Markets:Global

Additional Info.


Product Description

Product Name: L-Cysteine Free Base
CAS No.: 52-90-4
EINECS No.: 200-158-2
Molecular Weight: 121.1538
Chemical Formula: C3H7NO2S
Description: White crystals or crystalline powder.

Assay: 99.0% to 101.0%
Loss on drying: 0.50% max.
Chloride [as Cl-]: 0.04% max.
Ammonium [NH4+]: 0.02% max.
Sulfate [SO42-]: 0.03% max.
Iron [Fe]: 10ppm max.
Heavy metals [Pb]: 10ppm max.
Arsenic [As2O3]: 1ppm max.
pH: 4.5~5.5
Residue on ignition [sulfated]: 0.10% max.
Other amino acids: Not detectable (Chromatographically)
State of solution:
Transmittance: Clear and colorless
95.0% min.
Total Plate Count: Less than 3000 cfu/g
Coliforms: Less than 5 cfu/g
E. Coli: Negative
Salmonella: Negative
Supplier Profile
  • Qingdao Reach International Inc.
  • Audited Supplier
  • Shandong, China
  • Business Type: Manufacturer, Trading Company
  • Main Products: Amino Acid, Humic Acid, Potassium Humate, Seaweed Extract, Chitosan, Organic Fertilizer, Ammonium Sulfate, EDDHA-Fe6, EDTA Microelements, Super Absorbent Polymers
  • OEM/ODM Service: Yes
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Mr. Joshua Zhao
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