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PRODUCT NAME: L-Hydroxyproline AJI92 EXPIRY DATE:2YEARS | ||
ITEMS | SPECIFICATIONS | |
Description | White crystals or crystalline powder | |
Identification | Infrared Absorption | |
Specific optical rotation[a] | -74.0°~-77.0° | |
Transmittance | ≥95.0% | |
Loss on drying | ≤0.20% | |
Residue on ignition | ≤0.10% | |
Heavy metals (as Pb) | ≤10ppm | |
Iron(Fe) | ≤10ppm | |
Arsenic(As) | ≤1ppm | |
Ammonium(NH4) | ≤0.02% | |
Chloride, (as Cl) | ≤0.02% | |
Sulfate(SO4) | ≤0.02% | |
Other amino acids | Chromatographically not detectable | |
Assay | 98.5%-101.0% | |
pH | 5.0~6.5 | |
Conclusion | The test result of the above meet the requirement of AJI92. | |


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