1-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)-2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole,1-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)-2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole,Rabeprazole N-aralkyl impurity.;Impurity in commercial preparations of Rabeprazole,Rabeprazole Impurity