英文别名4-(Hydroxydiphenylmethyl)-1-(2-hydroxyethyl)quinuclidin-1-ium bromide; Umeclidinium bromide Impurity 4; Umeclidinium Impurity 4; 4-(Hydroxydiphenylmethyl)-1-(2-hydroxyethyl)-1-azoniabicyclo[2.2.2]octane bromide; Umeclidinium bromide Impurity-3 bromide; Umeclidinium Impurity B - 4-(hydroxydiphenylmethyl)-1-(2-hydroxyethyl) quinuclidin-1-ium bromide 
