Vitamin B12
Vitamin B12 mainly plays an important role in the formation of red blood cells, cell metabolism, development of the central nervous system and DNA synthesis in the human body. There are four types of vitamin B12, Cyanocobalamin (CAS No. is 68-19-9), Mecobalamin (CAS No. is 13422-55-4), Adenosylcobalamin and Hydroxocobalamin. Among them, cyanocobalamin powder 1% and mecobalamin powder are most commonly used.
Applications:
Symptoms of mild vitamin B12 deficiency include: glossitis, fatigue, palpitations, pale skin, weight loss, etc. In severe cases, cognitive function decline, infertility, anemia, and neurological symptoms such as hand and hand symptoms may occur. Numb and numb feet. Therefore, clinically, vitamin b12 can be used to treat pernicious anemia, liver disease, neuritis, neuralgia, etc. In daily life, it can be used in health care products. In the feed industry, it can also be used to promote the growth of livestock such as pigs and chickens.
Specification:
| Items | Standard |
| Appearance | Dark red crystal or crystalline powder, with no smell and no taste; hygroscopicity. |
| Identification A | A361nm/A278nm:1.70-1.90 |
| A361nm/A550nm:3.15-3.40 |
| Identification B | The retention time of major peak of the sample should be consistent with the standard solution. |
| Identification C | Positive |
| Infrared Spectrum | Infrared spectrum of the sample should be consistent with the reforence map. |
| Loss on drying | ≤10.0% |
| Assay | 97.0%~102.0% |
| 7β、8β-lactocyanocobalamin | ≤1.0% |
| 50-carboxyeyanocobalamin | ≤0.5% |
| 34-methylcyanocobalamin | ≤2.0% |
| 32-carboxyeyanocobalamin | ≤1.0% |
| 8-Epi-cyanocobalamin | ≤1.0% |
| Any other unidentified | ≤0.5% |
| Total impurities | ≤3.0% |
| Total aerobic bacteria count | ≤1000cfu/g |
| Molds、Yeasts | ≤100cfu/g |
| E、coli | Negative |
| Residual solvents | Acetone≤0.5% |
