L-Cysteine hydrochloride 52-89-1

L-Cysteine hydrochloride 52-89-1


  • Catalogue No.: 11954
  • Product Name: L-Cysteine hydrochloride
  • Synonyms: H-Cys-OH·HCl
  • CAS: 52-89-1
  • EC: 200-157-7
  • MDL: MFCD00064553
  • Formula: C3H8ClNO2S
  • MW: 157.62
  • ————————————————–
  • Price: USD1920/25kg
  • Price(bulk): Email Us


Standard USP28
Assay 99.0~100.5%
Appearance white crystalline powder
pH 1.5~2.1
Specific rotation[a]D20 +5.5°~+8.9°
Chloride 19.8~20.8%
Ammonium 0.02% max
Sulfate 0.03% max
Iron 10ppm max
Heavy metals 10ppm max
Other amino acids not detectable
Loss on drying 0.50% max
Residue on ignition 0.10% max
Packing 25kg/fibre drum
Storage 2 years in seal and shading place

L-Cysteine hydrochloride 52-89-1 is an important source of sulfide in human metabolism. The sulfide in iron-sulfur clusters and in nitrogenase is extracted from cysteine, which is converted to alanine in the process.


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