4,4'-Bipyridinium, 1,1'-dimethyl-, mixt. with 6,7-dihydrodipyrido(1,2-a:2',1'-c)pyrazinediium 58748-08-6 Cleansweep Dipyrido(1,2-a:2',1'-c)pyrazinediium, 6,7-dihydro-, mixt. with 1,1'-dimethyl-4,4'-bipyridinium Duanti Gramoxone plus Paraquat diquat mixt. Paraquat-diquat mixt. Spray-Seed