N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide N-phenyl-N-[1-(2-phenylethyl)-4-piperidyl]propanamide N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]propanamide N-phenyl-N-[1-(2-phenylethyl)-4-piperidyl]propionamide 437-38-7 80832-90-2 1-Phenethyl-4-N-propionylanilinopiperidine 5-22-08-00049 (Beilstein Handbook Reference) BRN 0494484 Durogesic EINECS 207-113-6 FENTANYL Fentanest Fentanil Fentanil [DCIT] Fentanila Fentanila [INN-Spanish] Fentanylum Fentanylum [INN-Latin] HSDB 3329 N-(1-Phenethyl-4-piperidinyl)-N-phenylpropionamide N-(1-Phenethyl-4-piperidyl)propionanilide N-Phenethyl-4-(N-propionylanilino)piperidine N-Phenyl-N-(1-(2-phenylethyl)-4-piperidinyl)propanamide Phentanyl Propanamide, N-phenyl-N-(1-(2-phenylethyl)-4-piperidinyl)- (9CI) Propionanilide, N-(1-phenethyl-4-piperidyl)- R 4263 Sentonil Duragesic (TN) Fentanyl (JAN/USAN/INN) Oprea1_207148 D00320 Propanamide, N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]- PDSP1_000860 PDSP2_000846 Oprea1_152073 1-Phenethyl-4-(N-phenylpropionamido)piperidine