indecainide indecainide indecainide (inn, trade name decabid) is a class ic antiarrhythmic agent. developed and marketed by lilly, it has now been discontinued. indecainideclinical dataatc codenoneidentifiers iupac name 9--9h-fluorene-9-carboxamide cas number74517-78-5 y 73681-12-6 (hcl)pubchem cid52194drugbankdb00192 ychemspider47194 yunii3azf20dm1tkeggd04521 ychemblchembl1201242 ncomptox dashboard (epa)dtxsid2057819 chemical and physical dataformulac20h24n2omolar mass308.425 g·mol−13d model (jsmol)interactive image smiles o=c(n)c3(c1ccccc1c2c3cccc2)cccnc(c)c inchi inchi=1s/c20h24n2o/c1-14(2)22-13-7-12-20(19(21)23)17-10-5-3-8-15(17)16-9-4-6-11-18(16)20/h3-6,8-11,14,22h,7,12-13h2,1-2h3,(h2,21,23) ykey:ucewgesniulagx-uhfffaoysa-n y ny (what is this?) (verify)