N-Acetyl-L-Cysteine 616-91-1 AJI92
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Items |
Limits |
Results |
Appearance |
White crystalline powder or colorless crystals |
Conforms |
Specific rotation |
+21.3~+27.0° |
+22.8° |
State of solution (Transmittance) |
≥95.0% |
99.2% |
Chloride (CL) |
≤0.040% |
<0.020% |
Ammonium (NH4) |
≤0.020% |
<0.020% |
Sulfate (SO4) |
≤0.030% |
<0.020% |
Iron (Fe) |
≤20ppm |
<5ppm |
Heavy metals (Pb) |
≤10ppm |
<5ppm |
Arsenic (As2O3) |
≤1ppm |
<1ppm |
Other Amino Acids |
Chromatographically not detectable |
Conforms |
Loss on drying |
≤0.50% |
0.1% |
Residue on ignition (Sulfated) |
≤0.20% |
0.05% |
Assay |
98.5~101.0% |
99.8% |
PH |
2.0~2.8 |
2.4 |
Melting point |
106~110℃ |
106~108℃ |
Conclusion: The Product Conforms to AJI92 |
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