2-butyl-1H-imidazole-5-carboxaldehyde
2-butyl-N,N'-bis{[2'-carboxybiphenyl-4-yl]methyl}imidazolium bromide
C35H33N10(1+)*Br(1-)
2-butyl-N,N'-bis{[2'-(tert-butoxycarbonyl)biphenyl-4-yl]methyl}imidazolium bromide
2-butyl-N,N'-bis{[2'-[2-(trityl)tetrazol-5-yl]biphenyl-4-yl]methyl}imidazolium bromide