3″-Methyl-acetylfentanyl
N-{1-[2-(3-Methylphenyl)ethyl]piperidin-4-yl}-N-phenylacetamide
 6151  C22H28N2O  336.471
 Fentanyl
 InChI=1S/C22H28N2O/c1-18-7-6-8-20(17-18)11-14-23-15-12-22(13-16-23)24(19(2)25)21-9-4-3-5-10-21/h3-10,17,22H,11-16H2,1-2H3
 RROIUIGBEXMCGR-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 Cc1cccc(c1)CCN1CCC(CC1)N(c1ccccc1)C(=O)C