Methyl 1-[2-(3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl)ethyl]-4-[phenyl(propanoyl)amino]piperidine-4-carboxylate
 1631 ·  C26H31N3O4S ·  481.607
 Fentanyl
 InChI=1S/C26H31N3O4S/c1-3-23(30)29(20-9-5-4-6-10-20)26(25(32)33-2)13-15-27(16-14-26)17-18-28-21-11-7-8-12-22(21)34-19-24(28)31/h4-12H,3,13-19H2,1-2H3
 GXUKUASABKZQLA-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCN1C(=O)CSc2c1cccc2)C(=O)OC)c1ccccc1