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- Product Description
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- Product Parameters
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Basic Info.
Product Description
Vitamin B12, also known as cobalamin or cyanocobalamin, is a B vitamin composed of porphyrins containing cobalt, which is a deep red crystal or crystalline powder, odorless, tasteless, hygroscopic, slightly soluble in water or ethanol, insoluble in chloroform, acetone or ether.
| Product Name: | Vitamin B12, |
| Appearance: | Dark red crystals or crystalline powder |
| From: | Powder |
| Shelf Life: | 24 Months in cool dry place; |
| Packing Details: | as per customers' request |
| Items | Specification |
| Appearance | Dark red crystals or crystalline powder |
| Solubility | freely soluble in water, practically insoluble in ethanol(96%) |
| Identification | Specific rotation +23o - +25o |
|
| Melting point 165-170oC |
|
| Infrared absorption conform |
| Appearance of solution | clear & colorless |
| Conductivity | ≤20μS/cm |
| Reduce sugar | ≤0.1% |
| Related substances | A(Sorbitol) ≤2.0% |
|
| B+C(Maltitol+ Isomalt) ≤2.0% |
|
| Unspecified ≤0.1% |
|
| Total ≤2.0% |
| Heavy metal | ≤5ppm |
| Nickel | ≤1ppm |
| Loss on drying | ≤0.5% |
| Microbiological | Total aerobic count ≤103cfu/g |
|
| Yeast&mold ≤102cfu/g |
|
| E.Coli negative |
|
| Salmonella negative |
| Assay | 97.0-102.0% |
| Bacterial endotoxin | ≤2.5EU/g |
2. Provide product search, offer, quality control, warehousing, international logistics, etc one-stop service
3. Offer customization product and all-around product application programs according to customers' requirement
4. Supply FREE sample and accept small orders
5. Alternative Packages
6.Operated by in professional teams, offer quality after-sales service and technical support
1. What's your delivery time?
A: Within 5 working days.
2.Can I get the sample before placing the order?
A: Of course, you just need to tell us the address and the number of samples you need.
3. What kind of payment terms do you accept?
A: TT or L/C for payment.
4. Where is your shipping port?
A: Tianjinxingang/Qingdao port.