6,7-Dihydro-5,8-didehydrodipyrido[1,2-a:2',1'-c]pyrazine-5,8-diium 6,7-Dihydrodipyrido[1,2-a:2',1'-c]pyrazine-5,8-diium 9,10-dihydro-8a,10a-diazoniaphenanthrene ion,diquat D004178 Dibromide, diquat 1,1'-ethylene-2,2'-bipyridylium 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium 9,10-Dihydro-8a,10a-diazoniaphenanthrene