2,3,5,6-tetradeuterio-1-methyl-4-(2,3,5,6-tetradeuterio-1-methylpyridin-1-ium-4-yl)pyridin-1-ium dichloride; 1,1'-Dimethyl-4,4'-bipyridinium-d8 Dichloride; Methyl Viologen-d8 Dichloride; Methylviologen-d8 Chloride; N,N'-Dimethyl-4,4'-bipyridinium-d8 Dichloride; N,N'-Dimethyl-4,4'-dipyridylium Dichloride; OK 622; Paragreen A-d8
