Color: | White |
---|---|
Appearance: | Powder |
Nutritional Value: | Nutritional |
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ITEMS | SPECIFICATION |
Appearance | white to slightly yellow crystalline powder |
Identification | positive |
Clarity of solution | clear, ≤BY6 |
Assay | 99.0~101.0% |
Loss on drying | ≤0.25% |
Sulphate | ≤150ppm |
Specific rotation | +103°~+106° |
pH(10%, W/V) | 7.8-8.0 |
Residual Solvents(as Methanol) | ≤3000ppm |
Heavy metals(as Pb) | ≤10ppm |
Iron | ≤2ppm |
Copper | ≤5ppm |
Oxalic acid | ≤0.3% |
Arsenic | ≤3ppm |
Lead | ≤2ppm |
Nickel | ≤1ppm |
Mercury | ≤1ppm |
Related substaces | ImpurityC≤0.15% ImpurityD≤0.15% Other unspecific impurities≤0.10% Total impurity≤0.2% |
Total plate count | ≤1000cfu/g |