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ITEMS | SPECIFICATION |
Appearance | Meet the requirement |
Identification | Meet the requirement |
Examination | Dissolve 10mg of vitamin D2 into 2ml of 90% ethanol, add 2ml solution of digitalis saponin and incubate for 18 hours. No precipitation or cloud should be observed. |
Melting Range | 115 ~ 119°C |
Specific Rotation | +103°~+106 |
Solubility | Freely soluble in alcohol |
Reducing Substances | Max 20ppm |
Ergosterol | none |
OrganicVolatilityImpurities | Corresponding using method IV(467) |
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