N-Acetyl-L-cysteine 616-91-1

N-Acetyl-L-cysteine 616-91-1


  • Catalogue No.: 11780
  • Product Name: N-Acetyl-L-cysteine
  • Synonyms: Ac-Cys-OH
  • CAS: 616-91-1
  • EC: 210-498-3
  • MDL: MFCD00004880
  • Formula: C5H9NO3S
  • MW: 163.19
  • ————————————————–
  • Price: USD1400/25kg
  • Price(bulk): Email Us


Standard AJI92
Assay 98.5~101.5%
Appearance white crystalline powder
Melting point 106~110℃
pH 2.0~2.8
Specific rotation[a]D20 +21.3°~+27.0°
Chloride(Cl) 0.04% max
Ammonium(NH4) 0.02% max
Sulfate(SO4) 0.03% max
Iron(Fe) 20ppm max
Heavy metals(Pb) 10ppm max
Arsenic(As2O3) 1ppm max
Other amino acids Conforms
Loss on drying 0.50% max
Residue on ignition 0.20% max
Packing 25kg/fibre drum
Storage 2 years in seal and shading place

N-Acetyl-L-cysteine; Ac-Cys-OH 616-91-1 is an acetylated amino acid with antioxidant and mucolytic properties. These two activities have made N-Acetyl-L-cysteine particularly relevant in cystic fibrosis studies, where the antioxidant/reducing character of the compound is described to ameliorate the characteristic systemic redox imbalance state of cystic fibrosis and the mucolytic properties of the compound are shown to impede upon the congestion and inflammation correlated to this redox state.


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