Customization: | Available |
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CAS No.: | 638-23-3 |
Formula: | C5h9no4s |
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Test Items | Specifications | Results |
Appearance | White crystalline powder | Qualified |
Identification | A. Specific rotation (-32.5°~-35.5°) B. TLC: meet the requirement C. Reaction of magnesium: positive |
-33.5° Conforms Positive |
Appearance of solution | Clear and colourless | Conforms |
Chloride(Cl) | ≤0.15% | Conforms |
Ninhydrin-positive substances | Not more intense than the spot with reference solution(0.5%) |
Conforms |
Sulfate(SO4) | ≤0.03% | Conforms |
Heavy metals(Pb) | ≤10PPm | Conforms |
Loss on drying | ≤0.5% | 0.4% |
Residue on ignition | ≤0.5% | 0.3% |
Assay | 98.5~100.5% | 99.3% |
PH | 2.8-3.0 | 2.9 |
Conclusions: | Material conforms to the EP8 standard. |