xibenolol xibenolol xibenolol is a beta blocker. xibenololclinical dataatc codenoneidentifiers iupac name 1-(tert-butylamino)-3-(2,3-dimethylphenoxy)propan-2-ol cas number30187-90-7 ypubchem cid146256chemspider129009unii0871jy946gcomptox dashboard (epa)dtxsid0043848 chemical and physical dataformulac15h25no2molar mass251.370 g·mol−13d model (jsmol)interactive image smiles o(c1cccc(c1c)c)cc(o)cnc(c)(c)c