Exploring 14367. To explore a different substance…

{4-[Acetyl(phenyl)amino]-1-[2-(thiophen-2-yl)ethyl]piperidin-4-yl}methyl acetate
 14367  C22H28N2O3S  400.534
 Fentanyl
 InChI=1S/C22H28N2O3S/c1-18(25)24(20-7-4-3-5-8-20)22(17-27-19(2)26)11-14-23(15-12-22)13-10-21-9-6-16-28-21/h3-9,16H,10-15,17H2,1-2H3
 GCOWOXFRYUGTSS-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CC(=O)OCC1(CCN(CC1)CCc1cccs1)N(c1ccccc1)C(=O)C