Nebivolol Related Compound B – A mixture of (R)-1-[(R)-6-Fluorochroman-2-yl]-2-({(S)-2-[(S)-6-fluorochroman-2-yl]-2-hydroxyethyl}amino)ethanol hydrochloride, (R)-1-[(R)-6-Fluorochroman-2-yl]-2-({(R)-2-[(R)-6-fluorochroman-2-yl]-2-hydroxyethyl}amino)ethanol hydrochloride and (S)-1-[(S)-6-Fluorochroman-2-yl]-2-({(S)-2-[(S)-6-fluorochroman-2-yl]-2-hydroxyethyl}amino)ethanol hydrochloride