| CAS No.: | 66-22-8 |
|---|---|
| Formula: | C4h4n2o2 |
| EINECS: | 200-621-9 |
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| Items | Specification | Test result |
| Appearance | White to light yellow solid | White powder |
| Purity(HPLC) | ≥99% | 99.78% |
| Loss on dry(115ºC,4h) | ≤0.3% | 0.17% |
| Burning residue | ≤0.2% | 0.10% |
| Water | ≤0.5% | 0.20% |
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