1,1'-dimethyl-4,4'-bipyridinium dichloride, EFOXON, ok622, Methyl viologen dichloride hydrate, esgram, 1,1’-dimethyl-4,4’-bipyridinium chloride (1:2), OSAQUAT, 1,1’-dimethyl-[4,4’-bipyridine]-1,1’-diium dichloride, TOTAL, WEEDOL, ah501, 1,1’-dimethyl-4,4’-bipyridinium dichloride, PP 148, Methyl viologen dichloride, Purity of Paraquat, Methyl Viologen Hydrate, PARACOL, 1,1'-dimethyl-4,4'-bipyridilium dichloride, methylviologen dichloride, 1,1'-dimethyl-4,4'-dipyridinium dichoride, 1,1'-Dimethyl-4,4'-bipyridinium Dichloride Hydrate, Paraquat dichloride, 1,1'-Dimethyl-4,4'-bipyridinium Dichloride  Hydrate, PP910, Paraquat Hydrate