| Product ID: | FY-SIL04 |
| Chemical Name: | Sildenafil Impurity 4/Sildenafil EP Impurity D |
| Synonyms: | Demethylpiperazinyl Sildenafil Sulfonic Acid/4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonic acid |
| Cas No.: | 1357931-55-5 |
| Molecular Formula: | C17H20N4O5S |
| Molecular Weight: | 392.43 |
| Specification: | 95% |
| Molecular Structure: |  |
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