1-[4-(1,1-Dimethylethyl)phenyl]-4-(4-hydroxy-1-piperidinyl)-1-butanone;Ebastine Related CoMpound D;1-[4-(1,1-Dimethylethyl)phenyl]-4-(4-hydroxypiperidin-1-yl)butan-1-one;1-(4-(tert-Butyl)phenyl)-4-(4-hydroxypiperidin-1-yl)butan-1-one;Ebastine EP Impurity D;1-[4-(1,1-Dimethylet...;1-[3-(4-tert-butylbenzoyl)-propyl]-4-;1-[4-(1,1-Dimethylethyl)phenyl]-4-(