| Brand Name | STD |
| Place of Origin | China |
| Model Number | Dihydrochloride 01 |
| Purity | 99 |
| MF | C5H9N3•2HCl |
| Other Names | C5H9N3•2HCl |
| CAS No. | 56-92-8 |
| Grade Standard | Industrial Grade |
Histamine Dihydrochloride
| Item | Specifications | Results |
| Appearance | White crystalline powder | White crystalline powder |
| Purity | 98.5~101.0% | 99.8% |
| PH | 2.85-3.60 | 3.52 |
| Histidine（TLC） | Not be detected | Passed |
| Solubility | Clearly | Passed |
| Loss on drying | ≤0.50% | 0.25% |
| As | ≤10ppm | 6ppm |
| SO4 | ≤0.02% | 0.015% |
| Pb | ≤10ppm | 7ppm |
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