The molecule is the organic cation formed formally by addition of an ethylene bridge between the nitrogen atoms of 2,2'-bipyridine. Most often available as the dibromide. It has a role as a herbicide and a defoliant. It derives from a hydride of a 2,2'-bipyridine.
7,10-diazoniatricyclo[8.4.0.02,7]tetradeca-1(14),2,4,6,10,12-hexaene