Assay: 98%-101.5%
Appearance: White crystals or crystalline powder
Capacity: 500tons/year
Packaging: 25kg/fiber drum
Sample: available
related documents:
- COA of L-Cysteine CAS 52-90-4
L-Cysteine CAS No. 52-90-4
Description
L-Cysteine
L-Cysteine Quick Details
Product Name: L-Cysteine
Other name : Cysteine
CAS No.: 52-90-4
Molecular Fomula: C3H7NO2S
Molecular weight:121.16
Appearance: White crystals or crystalline powder
L-Cysteine Typical Properties
| Item | Specifications |
| Appearance | White crystals or crystalline powder |
| Identification | Infrared absorption spectrum |
| Assay | 98%~101.5% |
| PH | 4.5~5.5 |
| Specific rotation | +8.3°~+9.5° |
| Transmittance | ≥95% |
| Chloride(Cl) | ≤0.040% |
| Sulfate(SO4) | ≤0.030% |
| Iron(Fe) | ≤10ppm |
| Ammonium | ≤0.020% |
| Heavy metal | ≤10ppm |
| Arsenic | ≤1ppm |
| Loss on drying | ≤0.5% |
| Residue on ignition | ≤0.10% |
L-Cysteine Application
L-Cysteine is widely used in medicine, food, cosmetics industry and biochemical research.
1. Medicine: used to treat skin diseases such as eczema, urticaria and freckles. It can also be used as an antidote for hepatitis, liver poisoning, radiopharmaceutical poisoning, antimony poisoning and the like. It has the effect of treating bronchitis and reducing phlegm.
2. Food: used in bread materials to promote the formation of gluten, promote fermentation, mold release, and prevent aging. Used in natural fruit juices to prevent oxidation of vitamin C and prevent fruit juices from turning brown.
3. Cosmetics: Antioxidant; Color protectant. Mainly used in beauty water, permanent wave, sun-proof skin cream, etc.
L-Cysteine Packaging and Shipping
25kg/fiber drum
L-Cysteine Storage
Storage:Keep container tightly closed, store in a cool, dry, well-ventilated area.