Riboflavin CAS NO.83-88-5

1.We supply vitamin b2 2.Orange yellow crystalline powder 3.High qulity,competitive price 4.Fast delivery 4.StandardCP2000 Molecular…

1.We supply vitamin b2 2.Orange yellow crystalline powder 3.High qulity,competitive price 4.Fast delivery 4.StandardCP2000  Molecular FormulaC17H20N4O6Characteristics orange yellow crystalline powder; micro foul, bitter tasteQuality Standard CP2000Assay   98.0%-101.0%Function 1. Help to improve the quality of life of 2. Treatment of Migraine 3. Promote the development and cell regeneration; 4. To the skin, nails, hair, the normal growth; 5. To help eliminate the mouth, lips, tongue inflammation; 6. to enhance visual acuity, reducing eye fatigue;[Packaging] kraft paper bag or drum packaging, bag (barrels) Net content of 25kg Items of Test   Limits of TestResults of Test1.AppearanceOrange yellow crystalline powderMeets2.Identification  PositiveMeets3.Acidity or Alkalinitycheck the color of the test solutionafter adding the respective solutionsMeets4.LumiflavinAbsorbance of the filtrate at 440nmdoes not exceed 0.025 (USP);notmore intense than BY6(EP/BP)0.008Meets5.Absorbance0.31-0.33 A373nm/A267nm0.36-0.39 A444nm/A267nm0.320.386.Particla Size100% passes through 60 mesh sieveMeets7.Specific Rotationbetween-115º and -135º(EP/BP/USP)-121º(USP)-1300(BP/EP)8.Loss on Drying≤1.5%0.4%9.Heavy Metals<10ppmMeets10.Residue on Ignition≤0.3% (USP)≤0.1%(EP/BP)0.1%11.Residual SolventsMethod IV <467>(USP)Meets12.Assay(ondried basis)98.0%-102.0% (USP)97.0%-103.0% (EP/BP)98.8%(USP)99.7%(EP/BP)CONCLUSION The product with this batch number meets all requirements of thefollowing valid compendia when tested accordingly EP5+BP2008+ USP33.1,Vitamin B2 2. Appearancewhit1.Vitamin B2 Riboflavine,Lactoflavine,VB22.Yellow crystal powder3.High qulity,competitive price4.StandardCP2000/USP/BP   Analyse  Items of Test   Limits of TestResults of Test1.AppearanceOrange yellow crystalline powderMeets2.Identification  PositiveMeets3.Acidity or Alkalinitycheck the color of the test solutionafter adding the respective solutionsMeets4.LumiflavinAbsorbance of the filtrate at 440nmdoes not exceed 0.025 (USP);notmore intense than BY6(EP/BP)0.008Meets5.Absorbance0.31-0.33 A373nm/A267nm0.36-0.39 A444nm/A267nm0.320.386.Particla Size100% passes through 60 mesh sieveMeets7.Specific Rotationbetween-115º and -135º(EP/BP/USP)-121º(USP)-1300(BP/EP)8.Loss on Drying≤1.5%0.4%9.Heavy Metals<10ppmMeets10.Residue on Ignition≤0.3% (USP)≤0.1%(EP/BP)0.1%11.Residual SolventsMethod IV <467>(USP)Meets12.Assay(ondried basis)98.0%-102.0% (USP)97.0%-103.0% (EP/BP)98.8%(USP)99.7%(EP/BP)CONCLUSION The product with this batch number meets all requirements of thefollowing valid compendia when tested accordingly EP5+BP2008+ USP33.