China L-Hydroxyproline, Find details about China Amino Acid, Pharmaceutical Intermediate from L-Hydroxyproline
Analytical Items | Standard |
Appearance | White crystals or crystalline powder |
Identification | Confirms to the IR Spectrum stanard |
Specific rotation | -74.0°~-77.0° |
pH | 5.0~6.5 |
Transmittance | ≥95.0% |
Loss on drying | ≤0.20% |
Residue on ignition | ≤0.10% |
Chloride | ≤0.02% |
Sulfate | ≤0.02% |
Ammonium | ≤0.02% |
Iron | ≤10PPm |
Heavy metals | ≤10PPm |
Arsenic | ≤1PPm |
Other amino acids | Confirms to the standard |
Assay | 98.5%~101.0% |