Exploring 14368. To explore a different substance…

{4-[Phenyl(propanoyl)amino]-1-[2-(thiophen-2-yl)ethyl]piperidin-4-yl}methyl propanoate
 14368  C24H32N2O3S  428.587
 Fentanyl
 InChI=1S/C24H32N2O3S/c1-3-22(27)26(20-9-6-5-7-10-20)24(19-29-23(28)4-2)13-16-25(17-14-24)15-12-21-11-8-18-30-21/h5-11,18H,3-4,12-17,19H2,1-2H3
 KHFYORAPFSIOIB-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCc1cccs1)COC(=O)CC)c1ccccc1