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CAS No.: 616-91-1
Standard: AJI, USP
Specification:
N-Acetyl-L-Cysteine | AJI92 | USP36 |
Appearance | White crystalline powder | White crystals or crystalline powder |
Assay | 98.5%~101.0% | 98.0%~102.0% |
pH | 2.0~2.8 | 2.0~2.8 |
Specific rotation | +21.3º~+27.0º | |
Transmittance | ≥98.0% | --- |
Loss on drying | ≤0.5% | ≤1.0% |
Residue on ignition | ≤0.20% | ≤0.5% |
Chloride(Cl) | ≤0.04% | --- |
Heavy Metals (Pb) | ≤10ppm | ≤0.001% |
Iron (Fe) | ≤20ppm | --- |
Sulfate(SO4) | ≤0.030% | --- |
Arsenic(As2O3) | ≤1ppm | --- |
Ammonium(NH4) | ≤0.02% | --- |
Other amino acids | Conforms | --- |
Melting point | 106ºC~110ºC | --- |
Manufacturing
