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| Payment Type: | L/C, T/T |
|---|---|
| Min. Order: | 1 |
| Certificate of Analysis | |||
| Product Name | Vitamin B12(Cyanocobalamin) | ||
| Grade | USP 38 | ||
| Test Item | Specification | Test Result | |
| Appearance | Dark red,crystalline powder or dark red crystals. | ||
| Assay(on drying basis) | 97.0%~102.0% | 98.65% | |
| Identification | A:A361/A278nm 1.70-1.90 A361/A550nm 3.15-3.40 | 1.84 3.23 | |
| B: Meets USP Requirements | Conform | ||
| C:HPLC:The retention time of major peak of the sample solution corresponds to that of the standard solution. | Conform | ||
| Loss on drying | ≤10.0% | 2.66% | |
| Related Substances | Total Impurities≤3.0% | 0.76% | |
| 7β,8β-Lactocyanocobalamin≤1.0% | 0.37% | ||
| 34-Methylcyanocobalamin≤2.0 | <0.1% | ||
| 8-Epi-cyancobalamin≤1.0 | 0.27% | ||
| Any other impurity(Include 50-Carboxycyanocobalamin;32-Carboxycyancobalamin)≤0.5% | <0.5% | ||
| Residual Solvent | Acetone≤0.5% | 0.002% | |
| Total Plate Count | ≤800cfu/g | 5cfu/g | |
| Yeast&Mold | ≤80cfu/g | <10cfu/g | |
| E-Coli | Negative | Pass | |
| Storage | Cool and dry condition | ||
| Packing | 0.1kg/tin | ||
| Conclusion | Conform to USP38 requirements | ||
Product Categories : Pharmaceutical Intermediate
