Butyrylremifentanil
Methyl 4-[butanoyl(phenyl)amino]-1-(3-methoxy-3-oxopropyl)piperidine-4-carboxylate
 1700 ·  C21H30N2O5 ·  390.473
 Fentanyl
 InChI=1S/C21H30N2O5/c1-4-8-18(24)23(17-9-6-5-7-10-17)21(20(26)28-3)12-15-22(16-13-21)14-11-19(25)27-2/h5-7,9-10H,4,8,11-16H2,1-3H3
 DRBSYWUZPIRIDG-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCC(=O)N(C1(CCN(CC1)CCC(=O)OC)C(=O)OC)c1ccccc1