CAS number: 67-03-8
Molecular formula: C12H17ClN4OS.HCl
molecular weight: 337.26712
Chemical structure:
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. |