3,5-Dimethyl-cyclopentylfentanyl
N-[3,5-Dimethyl-1-(2-phenylethyl)piperidin-4-yl]-N-phenylcyclopentanecarboxamide
 1696  C27H36N2O  404.588
 Fentanyl
 InChI=1S/C27H36N2O/c1-21-19-28(18-17-23-11-5-3-6-12-23)20-22(2)26(21)29(25-15-7-4-8-16-25)27(30)24-13-9-10-14-24/h3-8,11-12,15-16,21-22,24,26H,9-10,13-14,17-20H2,1-2H3
 FQDREKPGLXKWFU-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CC1CN(CCc2ccccc2)CC(C1N(C(=O)C1CCCC1)c1ccccc1)C