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          Vitamin B2 (Riboflavin)? 98%

          CAS number: 83-88-5

          Molecular formula:

          molecular weight:

          Chemical structure:

          Details

          Product Name
          Vitamin B2 (Riboflavin)
          Shelf Life
          3 years
          Test
          Specification
          Results
          Appearance
          A yellow or orange yellow crystalline powder
          Yellow crystalline powder
          Identification
          A solution of 1 mg in 100ml of water is pale greenish yellow by transmitted light, and has an intense yellowish-green fluorescence that disappears upon the addition of mineral acids or alkalies
          Conform
          Specific rotation, ° -115~-135
          -122
          Loss on drying, %
          ≤1.5
          0.10
          Residue on ignition, %
          ≤0.3 0.1
          Lumiflavin
          440nm Absorbance≤0.025 0.008
          Assay (on dried basis)%
          98.0~102.0
          99.1
          Conclusion: The above analytical results conform to USP37.