Details
| Parent | Fentanyl |
| Chemical Formula | C₁₄H₁₅D₅N₂O · C₂H₂O₄ |
| Molecular Weight | 327.39 |
| Information | Norfentanyl is a major urinary metabolite of fentanyl, a potent synthetic analgesic sold under various trade names including Sublimaze, Duragesic, Actiq, and Fentora. |
