Ilaprazole Impurity 197

2- (4-methoxy-2- (((2-methoxy-3-methyl-9- (1H-pyrrol-1-yl) benzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-12-yl) thio) methyl) -3-methylpyridin-1-ium-1-yl) -6- (1H-pyrrol-1-yl) benzo[d]imidazol-1-ide