- Contact Person : Ms. Lee lily
- Company Name : Zhengzhou Aisa Pacific Chemicals Co., Ltd.
- Tel : 86-371-65336811
- Fax : 86-371-65336900
- Address : Henan,Zhengzhou,No.22 nongye Road zhengzhou
- Country/Region : China
- Zip : 450000
L-cystine hydrochloride
characteristics:
L-Cystine hydrochloride is white crystals,dissolves in dilute hydrochloric
acid,mainly used in pharmaceutical intermediates,biochemical study,life
sciences,etc..
Specifications:
Items | Specifications | Results of test |
State of solution | ≥98.0% | ≥98.8% |
Chloride | 19.89-20.29% | 19.94% |
Specific Rotation[a]D20 | +5.5°~+7.0° | +6.04° |
Sulfate % | ≤0.02% | 0.006% |
Ammonium | ≤0.02% | 0.013% |
Heavy metals | ≤10 ppm | 2 ppm |
Iron | ≤10ppm | 6 ppm |
Arsenic | ≤1ppm | 0.1ppm |
PH | 1.5-2.0 | 1.71 |
Loss on drying | 8.5%-12.0% | 10.6% |
Residue on ignition % | ≤0.1% | 0.05% |
Assay % | 99.0~100.5% | 99.8% |
Other amino acid | Chromatographically not detectable | Qualified |
We also can offer you colorful label and carton with shipping mark according to your requirements.
L-cystine hydrochloride