Heptanoyl fentanyl
N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]heptanamide
 13851  C26H36N2O  392.577
 Fentanyl
 InChI=1S/C26H36N2O/c1-2-3-4-11-16-26(29)28(24-14-9-6-10-15-24)25-18-21-27(22-19-25)20-17-23-12-7-5-8-13-23/h5-10,12-15,25H,2-4,11,16-22H2,1H3
 ZLPDQEYWTXBVRY-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCCCCC(=O)N(c1ccccc1)C1CCN(CC1)CCc1ccccc1