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Tributylhexylphosphonium bromide

1-(2-hydroxylethyl)-3-methylimidazolium chloride

1-(2-hydroxylethyl)-3-methylimidazolium tetrafluoroborate

1-Methylimidazolium sulfobutyrolactone

1-Butylsulfonic-3-methylimidazolium trifluoromethanesulfonate

Pyridinium butylsulfonate

N-butylsulfonate pyridinium hydrogensulfate

N-butylsulfonate pyridinium trifluoromethanesulfonate

N-butylsulfonate pyridinium tosylate

1-Allyl-3-methylimidazolium tetrafluoroborate