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          Vitamin B1 Mono (Thiamine Mononitrate)

          CAS number: 532-43-4

          Molecular formula:

          molecular weight:

          Chemical structure:

          Details

          Name of Product
          Vitamin B1 Mono/Thiamine Monohydrate
          Shelf Life
          3 years
          Test Items
          Specification
          Results of Analysis
          Appearance
          white or almost white crystalline powder or colourless crystals White cyrstalline powder
          Identification
          (1) should be positive reaction (1) positive reaction

          (2) Consistent with the reference IR spectra

          (2) Consistent with the 

          reference IR spectra

          Ph 6.8-7.5 7.1
          Appearance of solution clear, not more intense than Y7 clear, not more intense than Y7
          Sulphates
          NMT300ppm <300ppm
          Limit of nitrate
          No brown ring No brown ring
          Heavy Metals
          NMT 20ppm <20ppm
          Chloride
          NMT 600ppm <300ppm
          Loss on drying
          NMT 1.0% 0.3%
          Residue on igonition NMT 0.1% 0.04%
          Residual Solvents

          Methanol NMT 1.0% <0.21%
          Ethanol
          NMT 1.5% <0.33%

          Related substances (Disregard 

          limit 0.05%)



          Any impurity
          NMT 0.4% 0.07%
          Total Impurities NMT 1.0% 0.17%
          Conclusion This batch comlies with the specification of BP2015/USP38