Vitamin B12 (Cyanocobalamin)
Cyanocobalamine ,Vitamin B12or vitamin B-12, also called cobalamin, is a water soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins.
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Item |
Specification |
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Characters |
Dar- red crystals or crystalline powder or crystals, hygroscopic |
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Identification |
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Ratio of optical density (UV) |
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|
A274/A351 |
0.75 ~0.83 nm |
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A525/A351 |
0.31 ~0.35 nm |
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TLC |
Complird |
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Reaction of chlorides |
Positive |
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Related substances |
≤5.0% |
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Loss on drying |
8.0 ~ 12.0% |
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Assay on dried basis |
96.0 ~ 102.0% |
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Residual solvents (GC) |
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Acetone |
≤5000 ppm |
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Pyrogen |
Complies |
Storage: in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
Shelf Life: 48 months
Package:in 25kg/bag
delivery:prompt
1. What’s your payment terms?
T/T or L/C.
2. What’s your delivery time?
Usually we will arrange the shipment in 7 -15 days.
3. How about the packing?
Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
4. How about the validity of the products?
According to the products you ordered.
5. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
6. What is loading port?
Usually is Shanghai,Qingdao or Tianjin.
