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| Product name | Guanine |
| CAS NO. | 73-40-5 |
| English name | Guanine |
| Alias | 2-Amino-6-hydroxypurine |
| Molecular formula | C5H5N5O |
| Molecular weight | 151.1261 |
| Structural formula |  |
| Appearance | white to off-white powder |
| Purity | ≥99.0% |
| Content | 98.0%-102.0% |
| Loss on drying | ≤0.5% |
| Residue | ≤0.1% |
| Heavy metal | ≤10ppm |
| Single impurity | ≤0.25% |
| Test standard | Enterprise standard |
| Package | |
| Storage | Sealed tightly, kept in dry place at room temperature |
