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          Vitamin B1 Hcl (Thiamine Hcl)

          CAS number: 67-03-8

          Molecular formula:

          molecular weight:

          Chemical structure:

          Details

          Name of Product Vitamin B1 Hcl/Thiamine Hydrochloride
          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

          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
          Water NMT 5.0% 2.1%
          Residue on igonition NMT 0.1% 0.04%
          Absorbance of solution NMT 0.025 0.025
          Residual Solvents

          Methanol NMT 0.3% <0.3%
          Ethanol
          NMT 0.5% <0.5%
          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.