Vitamin B1 Thiamine HCl Powder (F)
Product Specifications
DFI-247668DFI-602258
DFI-247668
| Description | |
|---|---|
| Appearance: | White or almost white crystalline powder or colourless crystals |
| Appearance of solution: | The solution is clear and not more intensely coloured than reference solution Y7 |
| CAS No.: | 67-03-8 |
| Country of origin: | China |
| EINECS No.: | 200-641-8 |
| Formula: | C12H18CI2N4OS |
| Molecular weight: | 337.27 |
| Packaging: | 25kg carton/ drum |
| Shelf life: | 36 months |
| Storage: | Keep out of sun and rain when storing. Do not mix with toxic and harmful substances |
| Specifications | |
| Absorbance of solution: | Max: 0.025% |
| Assay: | 98.5 to 101% |
| Identification: | Meets the requirement |
| Impurity A: | Max: 0.15% |
| Impurity B: | Max: 0.3% |
| Impurity C: | Max: 0.15% |
| Lead: | Max: 2mg/kg, ppm |
| Melting point: | About 248°, with some decomposition |
| Nitrate: | No brown ring is produced at the junction of two layers |
| pH: | 2.7 to 3.3 |
| Related Compounds: | Max: 1% |
| Residual solvents: | Max: 3000ppm, mg/kg |
| Residue on ignition: | Max: 0.1% |
| Solubility: | Freely soluble in water, soluble in glycerin; slightly soluble in alcohol (96%); Practically insoluble in heptane, insoluble in ether and in benzene |
| Sulphate: | Max: 300ppm, mg/kg |
| Total impurities: | Max: 0.5% |
| Unspecified Impurity: | Max: 0.1% |
| Water: | Max: 5% |
Published Date: 2025-11-05 09:44:36
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DFI-602258
| Description | |
|---|---|
| Appearance: | White crystals or almost white crystalline powder |
| Appearance of solution: | Clear, no more colour than reference solution Y7 or GY7 |
| Country of origin: | China |
| Packaging: | 25 kg Drum |
| Shelf life: | 36 months |
| Storage: | Store in a cool, dry area protected from direct sunlight, keep away from heat and flame. Keep container closed when not in use |
| Specifications | |
| Absorbance of solution: | Max: 0.025% |
| Any impurity: | Max: 0.1% |
| Arsenic: | Max: 1ppm, mg/kg |
| Assay: | 98.5 to 101% |
| Cadmium: | Max: 1ppm, mg/kg |
| Chromatographic purity: | Max: 1% |
| Ethanol: | Max: 0.5% |
| Heavy metals: | Max: 20ppm, mg/kg |
| Identification: | Consistent with the reference IR spectra |
| Identification: | Should be positive reaction |
| Impurity A: | Max: 0.15% |
| Impurity B: | Max: 0.3% |
| Impurity C: | Max: 0.15% |
| Lead: | Max: 2ppm, mg/kg |
| Limit of Nitrate: | No brown ring is produced at the junction of the two layers |
| Mercury: | Max: 0.1ppm, mg/kg |
| Methanol: | Max: 0.3% |
| pH: | 2.7 to 3.3 |
| Related Substances: | Disregard limit 0.05% |
| Residue on ignition: | Max: 0.1% |
| Sulphate: | Max: 300ppm, mg/kg |
| Total impurities: | Max: 0.5% |
| Water: | Max: 5% |
| Microbiological | |
| Escherichia Coli: | Negative |
| Salmonella: | Negative |
| Staphylococcus aureus: | Negative |
| Total plate count: | Max: 1000cfu/g |
| Yeasts & Moulds: | Max: 100cfu/g |
Published Date: 2026-04-02 10:43:19