Fentanyl
| Product reference number | FEN-622-FB |
| Full chemical name | 1-Phenethyl-4-N-propionylanilinopiperidine |
| Formula | C22H28N2O |
| Molecular weight | 336.48 |
| Chemical abstract number | 437-38-7 |
| DEA No. | 9801 CII |
| Appearance | white to off-white crystalline powder |
| IR | corresponds |
| NMR | corresponds to structure |
| MS | MH+ corresponds |
| UV max [nm] (mol, solvent) | 202.0 ± 1.0 (29000 ± 3000, methanol) |
| Melting point[Celsius] | 83 ± 3 |
| HPLC purity [%] | > 98.5 |
| Water content [%] | < 5 |
