L-Cysteine base

• Product NameL-Cysteine base
  CAS No.52-90-4
  Purity
  Min Quantity5000Kilograms
  Price~
• View Contact Detail

• 
  Molecular Structure

Detailed Description

Cas No.:52-90-4

Quality Standard: AJI97

Description: white crystals or crystalline powder.

Solubility (H2O, g/100g): about 16(20°)

Specific rotation: +8.3 to +9.5°

State of solution(transmittance): Not less than 95.0%

Chloride: Not more than 0.04%

Ammonium: Not more than 0.02%

Sulfate: Not more than 0.030%

Iron: Not more than 10ppm

Heavy metals(Pb): Not more than 10ppm

Arsenic: Not more than 1ppm

Other Amino Acids: conforms

Loss on drying: Not more than 0.5%

Residue on ignition(sulfated): Not more than 0.10%

Assay: 98.0 to 101.0%

PH: 4.5 to 5.5

Storage: Preserve in tight containers at controlled room temperature.

Recommended limit: 1 year