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Vitamin

Vitamin B12
CAS No. 68-19-9

Molecular Formula: C63H88CoN14O14P

Packaging: drum

Capacity: 1mt per month

Technical Data Sheet
Items Specification Results
Characters Dark red ,crystalline powder or dark red crystals Complies
Identification A: A361/A278nm:1.70-1.90
A361/A550nm  :3.15-3.40
1.87
3.24
B:meets USP requirements Complies
C:HPLC:the retention time of the major peak of the sample solution corresponds to that of the standard solution Complies
Loss on drying ≤10.0% 1.21%
Assay 97.0-102.0% 98.87%
Related substances Total impurities ≤3.0% 1.2%
7β,8β-Lactocyanocobalamin≤1.0% 0.70%
32-carboxycyanocobalamin≤1.0% <0.1%
8-Epi-cyanocobalamin≤1.0% 0.31%
Any other impurity≤0.5% <0.5%
Resiudal solvent Acetone ≤0.5% 0.02%
Total plate count ≤800cfu/g 10cfu/g
Yeasts and molds ≤80cfu/g <10cfu/g
E.coli Negative Complies
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