bromadoline bromadoline bromadoline (u-47931e) is an opioid analgesic selective for the μ-opioid receptor developed by the upjohn company in the 1970s. the drug has a potency lying between that of codeine and morphine, being slightly stronger than pentazocine. bromadoline is related to ah-7921 and u-47700. bromadolineclinical dataother namesbromadolineatc codenoneidentifiers iupac name 4-bromo-n-benzamide cas number67579-24-2 ypubchem cid54753chemspider49457 yuniir8dwn01p1mchemblchembl2110893comptox dashboard (epa)dtxsid40217897 chemical and physical dataformulac15h21brn2omolar mass325.250 g·mol−13d model (jsmol)interactive imagechiralityracemate of trans isomers smiles cn(1cccc1nc(c2=cc=c(c=c2)br)=o)c inchi inchi=1s/c15h21brn2o/c1-18(2)14-6-4-3-5-13(14)17-15(19)11-7-9-12(16)10-8-11/h7-10,13-14h,3-6h2,1-2h3,(h,17,19)/t13-,14-/m0/s1 ykey:ufdjfjymmizklg-kbpbesrzsa-n y (verify)