4,4'-((hexane-1,6-diylbis(azanediyl))bis(1-hydroxyethane-2,1-diyl))bis(benzene-1,2-diol);4,4'-[1,6-Hexanediylbis[imino(1-hydroxy-2,1-ethanediyl)]]bis-1,2-benzenediol; ?,?'-[hexamethylenebis(iminomethylene)]bis[3,4-dihydroxybenzyl Alcohol; Broncholysin; Byk 1512; Hexoprenaline; Ipradol; N,N'-Bis[2-(3,4-dihydroxyphenyl)-2-hydroxyethyl]hexamethylenediamine;Hexoprenaline