Vitamin B1 (Thiamine Hydrochloride)
Miasto: LV, Marupe
Please avoid sudden changes in temperature and humidity, as they may affect the condition of derivative ingredients and tablets.
The shelf life begins from the date of manufacture at the factory.
Taking into account logistical and transportation stages, the remaining shelf life of the product is always shorter than the full shelf life.
We ship products to our customers with a remaining shelf life of no less than 70%.
Physical & Chemical Characteristics
Analysis Item | Specification | Result |
Appearance | White or almost white crystalline powder | White crystalline powder |
Appearance of Solution | The solution is clear & not more intensely colored than reference solution Y7 or GY7 | The solution is clear & not more intensely colored than reference solution Y7 or GY7 |
Identification | (1) Reaction of chlorides should be positive reaction (2) Infrared Absorption Spectrophotometry consistent with the reference IR spectra | (1) Positive reaction (2) Consistent with the reference IR spectra |
Assay | 98.5% ~ 101.0% | 99.5% |
Loss on Drying | ≤5.0% | 2.4% |
Residue on Ignition | ≤0.1% | 0.05% |
Absorbance of Solution | NMT 2.9 | 2.9 |
pH | 2.7 – 3.3 | 2.7 |
Sulphates | ≤300 ppm | <300 ppm |
Limit of Nitrate | Meets the requirements | Meets the requirements |
Impurities
Analysis Item | Specification | Result |
Impurity A | ≤0.15% | 0.03% |
Impurity B | ≤0.3% | 0.01% |
Impurity C | ≤0.15% | 0.01% |
Any unspecified impurity | ≤0.1% | 0.02% |
Total Impurities | ≤1.5% | 0.10% |
Chemical Tests
Analysis Item | Specification | Result |
Residual Solvents | Methanol ≤3,000 ppm; Ethanol ≤5,000 ppm | Methanol <3,000 ppm; Ethanol <5,000 ppm |
Arsenic | ≤1.0 ppm | <1.0 ppm |
Lead | ≤0.5 ppm | <0.5 ppm |
Cadmium | ≤0.5 ppm | <0.5 ppm |
Mercury | ≤0.1 ppm | <0.1 ppm |
Microbiological Tests
Analysis Item | Specification | Result |
Total Plate Count | ≤1,000 CFU/g | <1,000 CFU/g |
Yeasts & Molds | ≤100 CFU/g | <100 CFU/g |
E. Coli | Negative/g | Negative |
Salmonella | Negative/10g | Negative |
Staphylococcus Aureus | Negative/g | Negative |
Above data is based on the certificate of analysis provided by the supplier/manufacturer.
Storage condition: Keep in cool and dry place. Preserve in tight, light-resistant containers.
Conclusion: Comply with required standards