Vitamin D2

CAS No.:50-14-6MF:C28H44OAppearance:white PowderSpecifications1.Labeyond Chemicals--A Respectable supplier from China2. More than 12 years experience in global trading and chemicalsProduct Name:Vitamin D2Molecular Formula: C28H44OCAS Number: 50-14-6Certificate of AnalysisProduct NameVitamin D2Batch Number120601Potency40,000,000IU/ gAnalysis Date20,06,2012Report Date25,06, 2012Analysis Based onUSP 29/BP2000Product Manufactured bySichuan Yuxin Pharmaceutical Co., Ltd .Product Provided bySichuan Yuxin Pharmaceutical Co., Ltd .Product Quantity500kgManufactured Date18,06, 2012Expiry17, 06,2014   ItemsStandardAnalyzed ResultsPropertiesShould be a white needle-shape crystal or white crystallized powder ; give out no smell , no taste ; be easy to lose activity in air or light .White crystallized powder without any smell or taste .Identification 1. Dissolve about 0.5mg of vitamin D2 into 5ml chloroform, add 0.3ml acetic anhydride and 0.1ml sulfuric acid, shake and mix vigorously. The mixture is initially produced bright red color , and then rapidly changes violet and finally blue to green . Positive reaction2. The infrared absorption spectroscopy should be in according with spectrum of comparisonThe infrared absorption spectrum of the sample is in according with the standardExaminationDissolve 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.PassedMelting RangeBetween 115°C and 119°C115.1°CSpecific RotationBetween +103 and +106+104.6Reducing SubstancesLight absorption of sample