H 128/80

Bisoprolol EP IMpurity L

Metoprolol Related CoMpound C

Metoprolol Tartrate EP IMpurity-C (USP RC C)

p-[2-Hydroxy-3-(isopropylamino)propoxy]benzaldehyde

4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]benzaldehyde