| 1 | 139755-91-2 | 西地那非杂质C | Desethyl Sildenafil | C20H26N6O4S
| 杂质对照品;对照品-杂质对照品 | |
| 2 | 1346603-75-5 | Desethyl Sildenafil-d3 | Desethyl Sildenafil-d3 | C20H26N6O4S
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| 3 | 957499-40-0 | 2,5-diethoxy-N-(2-{[6-(3-methyl-1H-pyrazol-1-yl)-3-pyridazinyl]amino}ethyl)benzenesulfonamide | 2,5-diethoxy-N-(2-{[6-(3-methyl-1H-pyrazol-1-yl)-3-pyridazinyl]amino}ethyl)benzenesulfonamide | C20H26N6O4S
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| 4 | 324523-96-8 | 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-3-propyl- | 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-3-propyl- | C20H26N6O4S
| | |
| 5 | | 3-((4-[(4,6-DIMETHOXYPYRIMIDIN-2-YL)METHYL]PIPERAZIN-1-YL)METHYL)-7-METHYL-2H-1,2,4-BENZOTHIADIAZINE 1,1-DIOXIDE | 3-((4-[(4,6-DIMETHOXYPYRIMIDIN-2-YL)METHYL]PIPERAZIN-1-YL)METHYL)-7-METHYL-2H-1,2,4-BENZOTHIADIAZINE 1,1-DIOXIDE | C20H26N6O4S
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