| Name | N-DESMETHYL SILDENAFIL |
| Synonyms | N-DESMETHYL SILDENAFIL |
| Molecular Formula | C21H28N6O4S |
| Molar Mass | 460.55 |
| Melting Point | 158-160°C |
| Solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Very Slightly, Heated) |
| Appearance | Solid |
| Color | White to Off-White |
| Storage Condition | -20°C Freezer |