riboflavin USP/EP CAS NO.83-88-5

 certificate:  ISO, HALAL, KOSHER, GMP, CEP   

1.Appearance  : Yellow or orange-yellow crystalline  powder      

2.Identification:  Positive

 3.Acidity or Alkalinity:   check the color of the test solution after adding the respective solutions              

4.Lumiflavin:            Absorbance of the filtrate at 440nm  does not exceed 0.025(USP)/       

5.Absorbance:                  0.31-0.33 A373nm/A267nm   

                                             0.36-0.39 A444nm/A267nm                 

6.Particla Size 100% passes through 60 mesh sieve

 7.Specific Rotation:    between-115º and -135º

8.Loss on Drying ≤1.5%

9.Heavy Metals <10ppm

10.Residue on Ignition     :       ≤0.3% (USP)/≤0.1%(EP/BP)                                                                       

12.Assay(ondried basis)  :       98.0%-102.0% (USP)/ 97.0%-103.0% (EP/BP)