ITEMSSPECIFICATIONAppearanceMeet the requirementIdentificationMeet the requirementExaminationDissolve 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 Range115 ~ 119°CSpecific Rotation+103°~+106Solubility Freely soluble in alcoholReducing SubstancesMax 20ppmErgosterol noneOrganicVolatilityImpuritiesCorresponding using method IV(467)
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