英文别名4-(1-oxidopyridin-4-ylidene)pyridin-1-ium 1-oxide; 4-(4-PYRIDIN-N-OXIDE)PYRIDINE-N-OXIDE; 4,4''-DIPYRIDYL N,N''-DIOXIDE; 4,4'-Dipyridyl Dioxide; 4,4'-bipyridine N,N'-dioxide; 2,2'-bipyridine-N,N'-dioxide; 4,4'-bispyridine-1,1'-dioxide; 4,4'-dipyridyl N,N'-dioxide; 4,4'-bipyridine 1,1'-dioxide 
