CAS number： 67-97-0
Molecular formula： C27H44O
molecular weight： 384.6377
Chemical structure：
| Product Name | Vitamin D3 40Miu Inj. Grade | ||
| Shelf Life | 3 years | ||
| Item | Specification | Result | |
| Appearance | A white crystalline powder | Conform | |
| Identification | Infrared Absorption | The IR spectrum of sample corresponds to that spectrum of Cholecalciferol Crystalline Reference Standard. | Conform |
| Color Test | A bright red color is produced, and it rapidly changes through violet and blue to green. | Conform | |
| Impurities | 7-Dehydrocholesterol | NMT 0.5% | Conform |
| Other individual related compound | NMT 0.1% | Conform | |
| Total impurities | NMT 1.0% | Conform | |
| Specific Rotation | +105.0°~+112.0° | +110.38° | |
| Melting Point | 82.0℃-87.0℃ | 82.5℃-84.0℃ | |
| Assay (HPLC) | 97.0%~103.0%(C27H44O) | 98.56% | |
| Conclusion: This batch meets the specifications of QS(B)-007-01. | |||
