L-Hydroxyproline
Product Name: L-Hydroxyproline
Batch No.: ******
Quality: AJI97
Shelf Life: 2years
| Tests | Limits | Test results |
| Description | White crystals or crystalline powder | crystalline powder |
| Identification (IR) | Concordant with the reference spectrum | Concordant with the reference spectrum |
| Assay | 98.5 ~ 101.0% | 99.3 % |
| PH | 5.0 ~ 6.5 | 5.9 |
| Specific rotation | - 74.0 ° ~ - 77.0 ° | - 75.9 ° |
| State of solution (Transmittance T 430 ) | ≥95.0% | 98.9 % |
| Chloride(Cl) | ≤0.02% | <0.02% |
| Ammonium(NH 4 ) | ≤0.02% | <0.02% |
| Sulfate(SO 4 ) | ≤0.02% | <0.02% |
| Iron(Fe) | ≤10ppm | <10ppm |
| Heavy metals(Pb) | ≤10ppm | <10ppm |
| Arsenic(As) | ≤1ppm | <1ppm |
| Other amino acids | ≤0.5% | ＜ 0.5% |
| Loss on drying | ≤0.20% | 0.15 % |
| Residue on ignition | ≤0.10% | 0.07 % |
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