Exploring 8478. To explore a different substance…

N-{1-[2-(2-Fluorophenyl)-2-oxoethyl]piperidin-4-yl}-N-phenylpropanamide
 8478  C22H25FN2O2  368.445
 Fentanyl
 InChI=1S/C22H25FN2O2/c1-2-22(27)25(17-8-4-3-5-9-17)18-12-14-24(15-13-18)16-21(26)19-10-6-7-11-20(19)23/h3-11,18H,2,12-16H2,1H3
 XYEKGSTZYDJYPW-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(c1ccccc1)C1CCN(CC1)CC(=O)c1ccccc1F