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Cyanocobalamin
| ITEMS | LIMIT |
| Description | Pale red to brown powder, hygroscopicity |
| Identification | Have maximum absorption 361±1nm,550±2nm |
| Grain Size | Uniformity 250um-180um≥90% |
| Loss on Drying | ≤5.0% |
| Assay(HPLC) | Make quantity 90-130% |
| (On C63H88C0N14O14P | |
| dried subs) |
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