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Vitamine B12 Cyanocobalamin CAS 68-19-9 Vitamine B12 Crystalline Cyanocobalamin Powder | ||||||
Product Name | Cyanocobalamin |
Appearance | Dark red crystalline powder,or dark red crystals |
Assay | 99% |
Standard | CP; BP; USP; EP |
Molecular formula | 1355.37 |
CAS | 68-19-9 |
MF | C63H88CoN14O14P |
Storage Temperature | Cool Dry Place |
Item | Specification | Results | |
Description | Dark red crystalline powder, have no smelly and tasteless;Hygroscopicity | Dark red crystalline powder,have no smelly and tasteless;Hygroscopicity | |
Identification | Positive | Positive | |
Ratio Absorbances | A361nm/A278nm: 1.70-1.90 A361nm/A550nm: 3.15-3.40 | 1.87 3.32 | |
Pseudo Cyanocobalamin | Complies | Complies | |
Loss on drying | ≤12.0% | 2.20% | |
Assay on dried | 96.0~100.5% | 98.50% | |
Bacteria | ≤1000cfu/g | 20cfu/g | |
Mould,Yeasts | ≤100cfu/g | No found | |
E Coli | No found | No found | |
Limit of residual solvents | Acetone≤0.5% | 0.02% | |
Conclusion | Conform to Complies with USP.34 |
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