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Pyrimidinetetramine sulfate is used as an intermediate for methotrexate.
Items | Specification | Result |
| Appearance | Yellowish crystalline powder | Conforms |
| Assay | ≥98% | 99.4% |
| Loss on drying | ≤2.0% | 1.56% |
| Related substance | Single impurity≤1.0% Total impurities≤2.0% | 0.34% 0.5% |
| Product parameters | |
| Cas number: | 5392-28-9 |
| Appearance: | Yellowish crystalline powder |
| Purity: | 98%min |
| Package details: | 25kg/drum |
| Brand: | Fortunachem |

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