The molecule is a 2,2'-iminobis[1-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)ethanol] that has (1R,1'R,2R,2'S)-configuration. It is a conjugate base of a (S,R,R,R)-nebivolol(1+). It is an enantiomer of a (R,S,S,S)-nebivolol.
(1R)-1-[(2R)-6-fluoro-3,4-dihydro-2H-chromen-2-yl]-2-[[(2R)-2-[(2S)-6-fluoro-3,4-dihydro-2H-chromen-2-yl]-2-hydroxyethyl]amino]ethanol