Description
CAS 51-35-4
CAS 51-35-4 Quick Details
Chemical Name: L-Hydroxyproline
CAS No.: 51-35-4
Chemical structure: 
Molecular formula: C5H9NO3
EINECS: 200-091-9
Synonyms: 4-hydroxy-L-proline;L-Proline, 4-hydroxy-, trans-; trans-4-Hydroxy-L-proline;trans-Lachnophyllol;
Appearance: White crystals or crystalline powder
CAS 51-35-4 Typical Properties
| ITEM | STANDARD |
| Product Name | L-Hydroxyproline |
| Specific rotation [α]D25 |
-74.0°～-77.0° |
| Appearance | White crystals or crystalline powder |
| Identification | Meets the requirements |
| Loss on drying | ≤0.2% |
| Residue on ignition | ≤0.1% |
| Chloride(Cl) | ≤0.020% |
| Sulfate(SO4) | ≤0.020% |
| Ammonium(NH4) | ≤0.020% |
| Other amino acids | Not detectable |
| Iron(Fe) | ≤10ppm |
| Arsenic(As2O3) | ≤1ppm |
| Heavy metals(Pb) | ≤10ppm |
| pH | 5.0～6.5 |
| State of solution(T430) | ≥95.0% |
| Assay | 98.5%～101.0% |
CAS 51-35-4 Application
1. L-hydroxyproline can be used as an exogenous nutritional supplement, which has skin moisturizing, anti-aging, sunscreen and the like;
2. L-hydroxyproline inhibits the production of melanin, and the inhibition rate at a concentration of 0.1 mmol/L is 18%, which can be used as a whitening aid.
3. L-hydroxyproline is used clinically for the development of muscles and joints, for the synthesis of antibiotics and anti-tumor, anti-hypertensive and novel gastric drugs, and as an antioxidant, antiseptic and preservative.
4. L-hydroxyproline can be used as a flavor enhancer; a nutritional enhancer. Flavor. Mainly used for juice, refreshing drinks, nutritional drinks, etc.
CAS 51-35-4 Packaging and Shipping
25kg/Fiber Drum.
CAS 51-35-4 Storage
It should be store in a cool, sealed place. Shelf life is 12 months.