N-Acetyl-L-Cysteine

Formula: C5H9NO3S
Formula wt: 163.195
CAS: 616-91-1
Einecs: 210-498-3
Acetylcysteine is an expectorant, white or off-white crystalline powder; it has a garlic-like odor, sour taste; it is hygroscopic. The sulfhydryl group in the chemical structure can break the disulfide bond of mucin, reduce the viscosity of sputum, and make sputum easy to cough up.

Technical Data Sheet Of N-Acetyl-L-Cysteine

   
Product Name   
   
N-Acetyl-L-Cysteine   
   
Test Item   
   
Specification: AJI92   
   
Description   
   
White or almost white, crystalline powder   
   
Identification   
   
It complies with   the spectrum obtained with acetylcysteine    CRS .   
   
Specific optical   rotation[ α]D20   
   
+21 . 3~ +27 . 0°(on dried basis)   
   
State of solution (Transmittance)   
   
Clear   and colourless ≥ 98 . 0%   
   
Chloride   
   
≤ 0 . 04%   
   
Sulfate   
   
≤ 0 . 030%   
   
Iron   
   
≤ 20ppm   
   
Heavy metals   
   
≤ 0 . 001%   
   
Loss on Drying   
   
≤ 0 . 5%   
   
Residue on ignition(sulfated)   
   
≤ 0 . 20%   
   
Other amino acids   
   
Not detectable   
   
Ammonium   
   
≤ 0 . 02%   
   
Arsenic   
   
≤ 1ppm   
   
Assay   
   
98 5% ~ 101 . 0%   
   
Melting point   
   
106℃ ~ 110℃   
   
pH   
   
2 . 0 ~ 2 . 8