Customization: | Available |
---|---|
Powder: | Yes |
Customized: | Customized |
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ITEM | SPECIFICATIONS | TEST RESULTS |
Appearance | White crystals or crystalline powder | White crystalline powder |
Assay, % | 98.5~101.0 | 99.3 |
Identification | Infrared absorption | Conforms |
pH value | 2.0~2.8 | 2.21 |
Specific optical rotation[a]D20° | +21°~+27° | +25.4° |
Melting point, ºC | 106~110 | 107~109 |
Transmittance, % | ≥98.0% | 98.9% |
Loss on drying, % | ≤0.5 | 0.15 |
Residue on ignition, % | ≤0.2 | 0.09 |
Chloride, % | ≤0.04 | <0.04 |
Sulfate, % | ≤0.03 | <0.03 |
Ammonium, % | ≤0.02 | <0.02 |
Heavy metals (as Pb), % | ≤0.001 | <0.001 |
Iron (Fe), % | ≤0.002 | <0.002 |
Other amino acids | Not detectable | Not detectable |