2,2-(Biphenyl)-4,4-diylbis(2-hydroxy-4,4-dimethylmorpholinium); 2,2-biphenyl-4,4-diylbis(2-hydroxy-4,4-dimethylmorpholin-4-ium); 2,2-(4,4-Biphenylene)bis(2-hydroxy-4,4-dimethylmorpholinium); Morpholinium,2,2-(4,4-biphenylene)bis(2-hydroxy-4,4-dimethyl; He