Address £º | Room A-706, |
Wisdom Center, | |
No.10 Moonbay Road, | |
Industrial Park, | |
Suzhou, China | |
Tel£º | +86-512-6999-5251 |
Fax£º | +86-512-6999-5250 |
E-mail£º | info@yiko-chem.com |
Vitamins >> Vitamin B12
Product name |
Vitamin B12(Cyanocobalamin) |
|
Country of origin |
China |
|
Shelf-life |
5Years |
|
According as |
USP38 |
|
Test items |
Specifications |
Test methods |
Characters |
Dark red,crystalline powder or dark red crystals. |
Visual method |
Identification |
A£º A361 nm/A278nm £º1.70¡«1.90 |
USP monograph |
B £ºMeets USP requirements |
USP monograph |
|
C£ºHPLC:The retention time of the major peak of the sample solution corresponds to that of the standard solution. |
USP monograph |
|
Loss on drying |
≤10.0% |
USP monograph/ |
Assay |
97.0%¡«102.0% |
USP monograph |
Related substances |
Total impurities ≤3.0 % |
USP monograph |
7β,8β-Lactocyanocobalamin ≤ 1.0 % |
USP monograph |
|
34-Carboxycyanocobalamin ≤1.0 % |
||
8-Epi-cyanocobalamin ≤ 1.0 % |
||
50-Carboxycyanocobalamin/32-Carboxycyanocobalamin /Any other unidentified impurity ≤0.5% |
||
Residual solvent |
Acetone ≤0.5 % |
In house/(GC) |
Total plate count |
≤800 cfu/g |
USP<2021> |
Yeasts and Molds |
≤80 cfu/g |
USP<2021> |
E.coli |
Negative/g |
USP<2022> |
Conclusion £º The product complies with the specification of USP 38 |
Address £º | Room A-706, |
Wisdom Center, | |
No.10 Moonbay Road, | |
Industrial Park, | |
Suzhou, China | |
Tel£º | +86-512-6999-5251 |
Fax£º | +86-512-6999-5250 |
E-mail£º | info@yiko-chem.com |