CAS number： 66215-27-8
Molecular formula： c6h10n6
molecular weight： 166.2
Chemical structure：
| Analysis content | Standards | Results |
| Characteristics | White or almost white crystalline powder | White crystalline powder |
| Melting Point | 219℃～226℃ | 222～223℃ |
| Residue on ignition | Less than0.2% | 0.13% |
| Water | Less than 1.0% | 0.30% |
| Related substance | Impurity A≤0.5% | Not detected |
| Impurity B≤0.5% | Not detected | |
| Impurity C≤0.5% | Not detected | |
| Impurity D≤1.0% | 0.23% | |
| Impurity E≤0.5% | Not detected | |
| Other every single impurity≤0.5% | 0.24% | |
| Total≤1.5% | 0.50% | |
| Assay | Calculated on anhydrous base≥98.0% | 98.60% |
