N-{1-[2-Fluoro-2-(4-fluorophenyl)ethyl]piperidin-4-yl}-N-phenylpropanamide
 8476  C22H26F2N2O  372.451
 Fentanyl
 InChI=1S/C22H26F2N2O/c1-2-22(27)26(19-6-4-3-5-7-19)20-12-14-25(15-13-20)16-21(24)17-8-10-18(23)11-9-17/h3-11,20-21H,2,12-16H2,1H3
 ZAQBCQUSUXCHKR-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(c1ccccc1)C1CCN(CC1)CC(c1ccc(cc1)F)F