SPECIFICATION
| Dark red crystalline powder or dark red crystals | |
| Loss on drying | ≤12.0% |
| Assay | 96.0-102.0% |
| Related substances | Total impurities: ≤3.0%7β,8β-Lactocyanocobalamin: ≤1.0%50-Carboxycyanocobalamin: ≤0.5%34-Methylcyanocobalamin: ≤2.0%32-Carboxycyanocobalamin: ≤0.5%8-Epi-cyanocobalamin: ≤1.0%Any other unidentified impurity: ≤0.5% |
| Acetone | ≤5000ppm |
MOLECULAR STRUCTURE：
Molecular Formula：C63H88CoN14O14P
