N-methyl-N'-n-butylimidazolium-2-carboxylate

2-(1-butyl-1,2-dihydroimidazol-1-ium-3-yl)ethanol,chloride

1-butyl-3-methyl-1,2-dihydroimidazol-1-ium,formate

(1-butylimidazol-2-yl)-(furan-2-yl)methanone