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Appearance | White crystals or crystalline powder |
Identification | Infrared Absorption |
Specific rotation | +26.3ᵒ~+27.7ᵒ |
Loss on drying | ≤0.5% |
Residue on ignition | ≤0.3% |
Chloride(CL) | ≤0.05% |
Sulfate(SO4) | ≤0.03% |
Iron(fe) | Not more than 30ppm |
Heavy metals | Not more than 15ppm |
Arsenic(as As2o3) | Not more than 1ppm |
Assay | 98.5%to101.5% |
Total plate count | Not more than 1000cfu/g |
Yeast&molds | Not more than 100cfu/g |
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