N-(2-Fluorophenyl)-N-{4-phenyl-1-[2-(1H-pyrazol-1-yl)ethyl]piperidin-4-yl}propanamide
 3131  C25H29FN4O  420.522
 Fentanyl
 InChI=1S/C25H29FN4O/c1-2-24(31)30(23-12-7-6-11-22(23)26)25(21-9-4-3-5-10-21)13-17-28(18-14-25)19-20-29-16-8-15-27-29/h3-12,15-16H,2,13-14,17-20H2,1H3
 IDZVQPKXBGZUSM-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCn1cccn1)c1ccccc1)c1ccccc1F