2-Fluorofentanyl
N-[2-Fluoro-1-(2-phenylethyl)piperidin-4-yl]-N-phenylpropanamide
 1686  C22H27FN2O  354.461
 Fentanyl
 InChI=1S/C22H27FN2O/c1-2-22(26)25(19-11-7-4-8-12-19)20-14-16-24(21(23)17-20)15-13-18-9-5-3-6-10-18/h3-12,20-21H,2,13-17H2,1H3
 CXVOUUHKXFLGQY-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1CCN(C(C1)F)CCc1ccccc1)c1ccccc1