Vitamin B12 Powder 99% /Cyanocobalamin Bp Grade /Cyanocobalamin B12 Suppliers
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- Supplier: Beijing Shifa Technology & Trade Co. Ltd. [Beijing China]Beijing
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Product Overview
Description
Product Description
Cyanocobalamin(Vitamin B12) is flavorless and tasteless.Gradually Hygroscopicity.Easily decomposed when exposed to light.Slightly soluble in water or ethanol. Insoluble in acetone chloroform and ether megaloblstic annemia ,malnutrition,posthemorrhagic anemia ,neuralgia and disturbance.
Product parameters
Cyanocobalamin(Vitamin B12) USP/JP/EP/CP standard
| Test Items | Specifications | Results | Test Methods |
| Characters | Dark red crystals of amorphous or crystalline red powder | Complies | Visual method |
| Identification A |
UV:The absorption sectrum exhibits maxima at 278+/-1nm,361+/-1nm and 550+/-2nm |
Complies | USP monograph |
| A 361nm/A278nm:1.70~1.90 A 361nm/A550nm:3.15~3.40 |
1.84 3.25 |
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| Identification B | Cobalt: Meets USP requirments | Complies | USP monograph |
| Identification C | HPLC: The retention time of the major peak of the sample solution corresponds to that of the standard solution | Complies | USP monograph |
| Loss on drying | ≤10.0% | 2.40% | USP monograph USP<731> |
| Assay | 97-102% | 98.60% | USP monograph |
| Related substances | Total impurities ≤3% | 0.80% | USP monograph |
| Acetone | ≤5000ppm | 10ppm | In house (GC) |
| The total aerobic microbial count | ≤1000cfu/g | 210cfu/G | Chp<1105> |
| The total combined yeasts/mould count | ≤100cfu/g | <10cfu/g | Chp<1105> |
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