Details
| Metabolite | Norfentanyl (Major), 4-ANPP (Minor) |
| Chemical Formula | C₂₂H₂₃D₅N₂O |
| Molecular Weight | 341.5 |
| Information | Acetyl fentanyl is a designer drug and fentanyl analog with a potency 40 times greater than heroin and 80 times greater than morphine. Fentanyl presence indicates use or exposure. Not a recognized metabolite of any other drug. |
