- Min.Order :100 Gram
- Purity: 99%
- Payment Terms : L/C,D/A,D/P,T/T
Keywords
cyanocobalamin vitamin B12 cyanocobalamin
Quick Details
- Appearance:Dark red crystas or amorphous or crystalline red powder
- Application:active pharmaceutical ingredient
- PackAge:1kg/tin，2tin/carton
- ProductionCapacity:|Metric Ton|Day
- Storage:in cool
- Transportation:as request
Superiority:
1. GMP AVALIABLE ;
2. IN STOCK
3. FAST REPLY
QUALIFED ; EFFICIENCY; RESPONSIBLE
Details:
|
ITEMS |
SPECIFICATION |
RESULTS |
|
Characters |
Dark red crystas or amorphous or crystalline red powder |
Complies |
|
Identification |
A:A361 nm/A278nm:1.70~1.90 A361 nm/A550nm:3.15~3.40 |
1.87 3.26 |
|
B:Cobait:meets USP requirements |
Complies |
|
|
C: HPLC:The retention time of major peak of the sample solution corresponds to that of the standard solution. |
Complies |
|
|
Loss on drying |
≤10.0% |
1.9% |
|
Assay |
97.0%-102.0% |
99.0% |
|
Related substances |
||
|
Total impurities |
≤3.0% |
0.8% |
|
7β、8β-lactocyanocobalamin |
≤1.0% |
0.4% |
|
34-methylcyanocobalamin |
≤2.0% |
＜0.1% |
|
8-Epi-cyanocobalamin |
≤1.0% |
0.2% |
|
Any other impurity(include 50-carboxycyanocobalamin:32-carboxycyanocobalamin) |
≤0.5% |
＜0.5% |
|
Acetone |
≤5000ppm |
27ppm |
|
The total aerobic microbial count |
≤1000cfu/g |
20cfu |
|
The total Yeasts /Molds count |
≤100cfu/g |
＜10cfu |
|
Conclusion: Conform to USP40 |
||
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