CAS No.:616-91-1
N-Acetyl-L-Cysteine
Molecular Formula: C5H8NO3S
Molecular Weight: 162.1875
CAS Number: 616-91-1
Specifications
| N-acetyl-L-cysteine | USP36 | AJI92 |
| content | 98.0～102.0% | 98.5～101.0% |
| acidity | 2.0～2.8 | 2.0～2.8 |
| Specific rotation [α]D20 | +21.0°～+27.0° | +21.3°～+27.0° |
| Light transmittance | / | Clear and colourless≥98.0% |
| chloride | / | ≤0.04% |
| Ammonium salt | / | ≤0.02% |
| sulfate | / | ≤0.03% |
| Iron salts | / | ≤10ppm |
| heavy metal | ≤10ppm | ≤10ppm |
| arsenic | / | ≤1ppm |
| Other amino acids | / | Chromatographically Not detectable |
| Loss on drying | ≤1.0% | ≤0.50% |
| Residue of ignition | ≤0.50% | ≤0.20% |
| melting point | / | 106℃～110℃ |
| Solvent residues | Meets the requirements | / |
| Total bacteria | ≤ 1000 CFU/g | ≤ 1000 CFU/g |
| Mold & yeast | ≤ 100 CFU/g | ≤ 100 CFU/g |