Cyclopropylfentanyl
N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]cyclopropanecarboxamide
 3175  C23H28N2O  348.481
 Fentanyl
 InChI=1S/C23H28N2O/c26-23(20-11-12-20)25(21-9-5-2-6-10-21)22-14-17-24(18-15-22)16-13-19-7-3-1-4-8-19/h1-10,20,22H,11-18H2
 OIQSKDSKROTEMN-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 O=C(N(c1ccccc1)C1CCN(CC1)CCc1ccccc1)C1CC1