2-Hydroxycarfentanil
Methyl 2-hydroxy-1-(2-phenylethyl)-4-[phenyl(propanoyl)amino]piperidine-4-carboxylate
 13707  C24H30N2O4  410.506
 Fentanyl
 InChI=1S/C24H30N2O4/c1-3-21(27)26(20-12-8-5-9-13-20)24(23(29)30-2)15-17-25(22(28)18-24)16-14-19-10-6-4-7-11-19/h4-13,22,28H,3,14-18H2,1-2H3
 MNXNUCWTQLLESG-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(C(C1)O)CCc1ccccc1)C(=O)OC)c1ccccc1