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N-Acetyl-L-Cysteine
  Quality standard:USP, AJI
CAS No.: 616-91-1
Kosher:√
Halal:√
Class:

Chemical Name: N-acetyl-L-(+)-cysteine
Structure Formula:
  
Molecular Formula: C5H9NO3S
Molecular Weight: 163.191
Cas No: [616-91-1]
Characteristics: White crystals or crystalline powder . Freely soluble in water, soluble in ethanol, practically insoluble ether.
Quality Standards: AJI88/AJI92.

Items Specification (USP) Specification (AJI)
Description White crystals or crystalline powder White crystals or crystalline powder
Identification Infrared absorption spectrum Infrared absorption spectrum
Specific rotation [a]D20 ° +21.0 °- +27.0 ° +21.3 °- +27.0 °
State of solution (Transmittance) - - - - ≥ 98.0%
Chloride(Cl) - - - - ≤ 0.04%
Ammonium(NH4) - - - - ≤ 0.02%
Sulfate(SO4) - - - - ≤ 0.030%
Iron(Fe) - - - - ≤ 20PPm
Heavy metals(Pb) 0.001% ≤ 10PPm
Arsenic(As2O3) - - - - ≤ 1PPm
Other amino acids - - - - Chromatographically Not detectable
Loss on drying ≤ 1.0 % ≤ 0.5%
Residue on ignition (Sulfated) ≤ 0.5% ≤ 0.20%
PH 2.0-2.8 2.0-2.8
Melting point - - - - 106 to 110 o
Assay 98. 0-10 2 .0% 98.5-101.0%
O.V.I Meets the requirements - - - -

 

Packaging and Storage: In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 1 year.