Complaint
General Information:
Type: Vitamins
Origin: China
CAS No.: 68-19-9
AUCO No.: 817
Packing: 1kg tin
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 | Ace≤0.5% |
Packing Photos:
