Synonyms: 4,4'-Bipyridinium,1,1'-bis(phenylmethyl)-, dibromide (9CI); 4,4'-Bipyridinium, 1,1'-dibenzyl-, dibromide(8CI); 1,1'-Dibenzyl-4,4'-bipyridinium dibromide; Benzylviologen bromide;Benzylviologen dibromide; N,N'-Dibenzyl-4,4'-bipyridinium dibromide;N,N'-Dibenzyl-4,4'-dipyridinium dibromide