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L-Cysteine base

  • CAS No.: 52-90-4
  • Purity: 90%
  • Price: USD 1~2/Kilograms
  • Weight: 121.15818
  • Place of Orign: wuahn,Hubei,China
Ms.Gloria Cui

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Item specifics

  • Product Name.:L-Cysteine base
  • CAS No: 52-90-4
  • Weight: 121.15818
  • Formula: C3H7NO2S
  • Melting Point: 220 ºC
  • Boiling Point: 293.9 °C at 760 mmHg
  • Density: 1.334 g/cm3

Details

L-Cysteine base


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


EXW Price: USD18/KG

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L-Cysteine base

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