Exploring Hexanoyl fentanyl. To explore a different substance…

Hexanoyl fentanyl
N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]hexanamide
 3986  C25H34N2O  378.55
 Fentanyl
 InChI=1S/C25H34N2O/c1-2-3-6-15-25(28)27(23-13-9-5-10-14-23)24-17-20-26(21-18-24)19-16-22-11-7-4-8-12-22/h4-5,7-14,24H,2-3,6,15-21H2,1H3
 PWKBFVCAQVONRR-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCCCC(=O)N(c1ccccc1)C1CCN(CC1)CCc1ccccc1