Specification:
| S.N. |
Test Parameter |
Specification |
| 1 |
Appearance |
A White crystalline powder |
| 2 |
Identification |
Infrared Absorption |
The IR spectrum of sample corresponds to that spectrum of Cholecalciferol Crystalline reference standard. |
| UV |
265 nm, Absorptivity NMT 3.0% |
| Color Test |
A bright red color is produced, and it rapidly changes through violet and blue to green. |
| 3 |
Impurities |
7-Dehydrocholesterol |
NMT 0.5% |
| Other individual related compound |
NMT 0.1% |
| Total impurities |
NMT 1.0% |
| 4 |
Specific Rotation |
+105° ~ +112° |
| 5 |
Assay |
97.0% ~ 103.0% |
Storage: Preserve in hermetically sealed containers with vacuum and stored at 2-8 °C (temp.) and dry place, protected from light.
