C5H9NO3S
N-Acetyl-L-Cysteine | CAS NO:616-91-1 |
Chemical Name | N-Acetyl-L-Cysteine |
Molecular Structure | |
Molecular Formula | C5H9NO3S |
Molecular Weight | 163.19 |
Cas No |
[616-91-1] |
Characteristics | White crystals crystalline powder , strongly acid taste |
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AJI92 | USP24 | FCC4 |
Appearance | White crystals crystalline powder | White crystals crystalline powder |
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Assay | 98.5~101.0% | 98.5~101.0% |
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PH | 2.0~2.8 | 2.0~2.8 |
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Specific rotation[a]D20° | +5.5°~+7.0° | +5.5°~+7.0° |
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State of solution | ≥98.0% |
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Chloride(Cl) | ≤0.04% |
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Ammonium(NH 4 ) | ≤0.02% |
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Iron(Fe) | ≤20PPm |
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Heavy metals(Pb) | ≤10PPm | ≤10PPm |
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Arsenic(As2O3) | ≤1PPm |
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Other amino acids | Conforms |
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Loss on drying | ≤0.5% | ≤1% |
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Residue on ignition | ≤0.20% | ≤0.5% |
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Melting point | 106~110° |
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Organic volatile impurities |
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Meet the requirements |
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