- Plant Extract[10]
- Healthcare Supplement[3]
- Pharmaceutical[10]
- Essential Oil[1]
- Daily Chemicals[5]
- Organic Intermediate[7]
- Herbal Medicine[1]
- Food Additives[7]
- Contact Person : Ms. Ye Jerria
- Company Name : Ningbo Jiangdong Healtrue Biotechnology Co., Ltd.
- Tel : 86-574-87865727
- Fax : 86-574-87865762
- Address : Zhejiang,Ningbo,No. 25 Lane 280 Xingning Road
- Country/Region : China
- Zip : 315000
N-Acetyl-L-Cysteine
N-Acetyl-L-Cysteine
Items | Standard | Results |
Appearance | White crystals or crystalline powder | Conforms |
Specific rotation | +21.3~+27.0° | +23.8° |
State of solution(Transmittance) | ≥98.0% | 99.4% |
Chloride(Cl) | ≤0.040% | 0.040% |
Ammonium(NH4) | ≤0.020% | 0.020% |
Sulfate(SO4) | ≤0.030% | 0.030% |
Iron(Fe) | ≤20ppm | 5ppm |
Heavy metals(Pb) | ≤10ppm | 10ppm |
Arsenic(As2O3) | ≤1ppm | 1ppm |
Other Amino Acids | Chromatographically not detectable | Conforms |
Loss on drying | ≤0.50% | 0.31% |
Residue on ignition(Sulfated) | ≤0.20% | 0.05% |
Assay | 98.5~101.0% | 99.5% |
pH | 2.0~2.8 | 2.2 |
Melting point | 106~110 | 107~109 |
N-Acetyl-L-Cysteine