has role defoliant organic cation 2,2'-bipyridine diquat 1,1'-Ethylene-2,2'-bipyridylium ion CAS:2764-72-9 Diquat dication chebi_ontology InChI=1S/C12H12N2/c1-3-7-13-9-10-14-8-4-2-6-12(14)11(13)5-1/h1-8H,9-10H2/q+2 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium SYJFEGQWDCRVNX-UHFFFAOYSA-N C12H12N2 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. 9,10-Dihydro-8a,10a-diazoniaphenanthrene Reaxys:3670526 184.09895 +2 KEGG:C18577 C1C[n+]2ccccc2-c2cccc[n+]12 CHEBI:64163 1,1'-Ethylene-2,2'-bipyridyldylium ion Wikipedia:Diquat 184.23710 PPDB:1541