Customization: | Available |
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CAS No.: | 69-65-8 |
Formula: | C63h88c0n14o14p |
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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:
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Vitamin B12,
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Appearance:
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Dark red crystals or crystalline powder
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From:
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Powder
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Shelf Life:
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24 Months in cool dry place;
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Packing Details:
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as per customers' request
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Items |
Specification |
Appearance |
Dark red crystals or crystalline powder |
Solubility |
freely soluble in water, practically insoluble in ethanol(96%) |
Identification |
Specific rotation +23o - +25o |
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Melting point 165-170oC |
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Infrared absorption conform |
Appearance of solution |
clear & colorless |
Conductivity |
≤20μS/cm |
Reduce sugar |
≤0.1% |
Related substances |
A(Sorbitol) ≤2.0% |
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B+C(Maltitol+ Isomalt) ≤2.0% |
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Unspecified ≤0.1% |
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Total ≤2.0% |
Heavy metal |
≤5ppm |
Nickel |
≤1ppm |
Loss on drying |
≤0.5% |
Microbiological |
Total aerobic count ≤103cfu/g |
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Yeast&mold ≤102cfu/g |
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E.Coli negative |
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Salmonella negative |
Assay |
97.0-102.0% |
Bacterial endotoxin |
≤2.5EU/g |
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.