Molecular Formula: C5H8NO3S
Molecular Weight: 162.1875
CAS No： 616-91-1
| N-Acetyl-L-Cysteine | USP36 | AJI92 |
| Assay | 98.0～102.0% | 98.5～101.0% |
| pH | 2.0～2.8 | 2.0～2.8 |
| Specific rotation[ɑ]D20 | +21.0°～+27.0° | +21.3°～+27.0° |
| State of solution | / | Clear and colourless≥98.0% |
| Chloride(Cl) | / | ≤0.04% |
| Ammonium(NH4) | / | ≤0.02% |
| Sulfate(SO4) | / | ≤0.03% |
| Iron(Fe) | / | ≤10ppm |
| Heavy metals(Pb) | ≤10ppm | ≤10ppm |
| Arsenic(As) | / | ≤1ppm |
| Other amino acids | / | Chromatographically Not detectable |
| Loss on drying | ≤1.0% | ≤0.50% |
| Residue on ignition | ≤0.50% | ≤0.20% |
| Melting point | / | 106℃～110℃ |
| Residual Solvents | Meets the requirements | / |
| Total plate count | ≤ 1000 CFU/g | ≤ 1000 CFU/g |
| Moulds & Yeasts | ≤ 100 CFU/g | ≤ 100 CFU/g |
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