(aS,a,2R,2)-a,a[Iminobis(methylene)]bis[6-fluoro-3,4-dihydro-2H-1-benzopyran-2-methanol];(2R)-2-[(S)-1-Hydroxy-2-[[(S)-2-hydroxy-2-[[(2S)-3,4-dihydro-6-fluoro-2H-1-benzopyran]-2-yl]ethyl]amino]ethyl]-6-fluoro-3,4-dihydro-2H-1-benzopyran;[2R,2'S,αS,α'S,(-)]-α,α'-[Iminobis(methylene)]bis(6-fluoro-3,4-dihydro-2H-1-benzopyran-2-methanol);(αS,α'S,2R,2'S)-α,α'-[IMinobis(Methylene)]bis[6-fluoro-3,4-dihydro-2H-1-benzopyran-2-Methanol];[2S-[2R*[R*[R*(S*)]]]]-α,α'-[IMinobis(Methylene)]bis[6-fluoro-3,4-dihydro-
2H-1-benzopyran-2-Methanol;Levonebivolol;Nebivolol IMpurity A (L-Nebivolol);l-Nebivolol
