Exploring 14374. To explore a different substance…

{4-[Phenyl(propanoyl)amino]-1-[2-(thiophen-2-yl)ethyl]piperidin-4-yl}methyl 2,2-dimethylpropanoate
 14374  C26H36N2O3S  456.641
 Fentanyl
 InChI=1S/C26H36N2O3S/c1-5-23(29)28(21-10-7-6-8-11-21)26(20-31-24(30)25(2,3)4)14-17-27(18-15-26)16-13-22-12-9-19-32-22/h6-12,19H,5,13-18,20H2,1-4H3
 BCDQTSIFQQKWNR-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCc1cccs1)COC(=O)C(C)(C)C)c1ccccc1