Not Less Than - 95%
3-[2-Hydroxy-3-[4-(2-methoxyethyl)phenoxy]propoxy]-1-isopropylamino-2-propanol;1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-3-[4-(2-methoxyethyl)phenoxy]propan-2-ol; 1-[2-Hydroxy-3-[4-(2-methoxyethyl)phenoxy]propoxy]-3-[(1-methylethyl)amino]-2-propanol