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Paraquat1910-42-5100 % similar 1-Methylpyridinium chloride7680-73-152 % similar 1,1′-Dimethyl-4,4′-bipyridinium methyl sulfate (1:2)2074-50-245 % similar 1,1′-Dibenzyl-4,4′-bipyridinium dichloride1102-19-838 % similar 1,3-Dimethylimidazolium chloride79917-88-736 % similar 1-Benzyl-3-methylimidazolium chloride36443-80-834 % similar 1-Ethyl-3-methylimidazolium chloride65039-09-032 % similar