Cas:13422-55-4 мекобаламин витамин b12 порошок
- Категории: Optical Healthcare Products >>>
- Поставщик: JoinedFortune,Technology(shenyang)Co.,Ltd
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Характеристики
Vitamin B12 mainly exists in meat, soybeans in plants and some herbal medicines also contain B12, intestinal bacteria can be
synthesized, so it is not lacking in general, but B12 is easy to lack of vitamin in digestive tract diseases, but also an
indispensable important element of red blood cell formation, if seriously lacking, will lead to pernicious anemia!
synthesized, so it is not lacking in general, but B12 is easy to lack of vitamin in digestive tract diseases, but also an
indispensable important element of red blood cell formation, if seriously lacking, will lead to pernicious anemia!
NAME | Vitamin B12(Cyanocobalamin) | ||||||
Test Item | Specification | ||||||
Appearance | Dark red crystal or crystalline powder, with no smell and no taste, hygroscopicity | ||||||
A361nm/A278nm:1.70-1.90 | |||||||
Identification A | 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 dry | ≤12.0% | ||||||
Assay | 96.0%~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% | ||||||
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