| Identification |
| Name: | 7H-Pyrazolo[4,3-d]pyrimidin-7-one,5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- |
| Synonyms: | Piperazine,1-[[3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-(9CI); 1H-Pyrazolo[4,3-d]pyrimidine, piperazine deriv.;5-[2-Ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one;Desmethylsildenafil; N-Demethylsildenafil; N-Desmethylsildenafil; UK 103320 |
| CAS: | 139755-82-1 |
| Molecular Formula: | C21H28 N6 O4 S |
| Molecular Weight: | 460.55 |
| InChI: | InChI=1/C21H28N6O4S/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28) |
| Molecular Structure: |
![(C21H28N6O4S) Piperazine,1-[[3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphen...](https://img1.guidechem.com/chem/e/dict/23/139755-82-1.jpg) |
| Properties |
| Flash Point: | 368.5°C |
| Boiling Point: | 685.7°C at 760 mmHg |
| Density: | 1.44g/cm3 |
| Refractive index: | 1.683 |
| Flash Point: | 368.5°C |
| Usage: | A metabolite of Sildenafil, an orally active selective type 5 cGMP phosphodiesterase inhibitor |
| Safety Data |
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