Exploring 14380. To explore a different substance…

{4-[Phenyl(propanoyl)amino]-1-[2-(2H-tetrazol-2-yl)ethyl]piperidin-4-yl}methyl acetate
 14380  C20H28N6O3  400.475
 Fentanyl
 InChI=1S/C20H28N6O3/c1-3-19(28)26(18-7-5-4-6-8-18)20(15-29-17(2)27)9-11-24(12-10-20)13-14-25-22-16-21-23-25/h4-8,16H,3,9-15H2,1-2H3
 QKPUEKVMZTYLFR-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCn1nncn1)COC(=O)C)c1ccccc1