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CAS number： 532-43-4
Molecular formula：
molecular weight：
Chemical structure：
|
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 | |