Customization: | Available |
---|---|
CAS No.: | 68-19-9 |
Formula: | C63h88con14o14p |
Still deciding? Get samples of US$ 10/Bag
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Product Name: Vitamin b12 (Cyanocobalamin)
Specification: 96.0%~102.0%
Appearance: Dark red crystals or amorphous or crystalline red powder
TECHNICAL DATE SHEET
PRODUCT SPECIFICATIONS | ||
Product Name: | Vitamin b12 (Cyanocobalamin) | |
Molecular formula | C63H88CoN14O14P | |
ANALYSIS ITEMS | SPECIFICATION | TEST METHOD |
Characters | Dark red crystals or amorphous or crystalline red powder | |
Identification A | UV :The absorption spectrum exhibits maxima at 278±1nm,361±1nm and 550±2nm | |
A361 nm/A278nm: 1.70~1.90 A361 nm/A550nm: 3.15~3.40 |
||
Identification B | Cobalt: meets USP requirements | |
Identification C | C: HPLC:The retention time of the major peak of the sample solution corresponds to that of the standard solution | |
Related substances | Total impurities ≤3.0% | |
7β,8β-lactocyanocobalamin≤1.0% | ||
34-methylcyanocobalamin≤2.0% | ||
8-Epi-cyanocobalamin≤1.0% | ||
Any other unidentified impurity and 50-carboxycyanocobalamin,32- carboxycyanocobalamin≤0.5% |
||
Loss on drying | ≤10.0% | |
Acetone | ≤5000ppm | |
The total aerobic microbial count | ≤1000cfu/g | |
The total combined yeasts/mould count | ≤100cfu/g | |
Assay | 96.0%~102.0% | |
Packing | Pack in paper-drums and two plastic-bags inside N.W. 25 kgs I.D.35xH51cm. | |
Storage | Store in a well-closed container away from moisture, light, oxygen. | |
Shelf Life | 24 months under the conditions above and in its original packaging |