5-ethenyl-3-methylimidazole-4-carbaldehyde;3-methyl-5-vinyl-imidazole-4-carbaldehyde;3-methyl-5-vinyl-4-imidazolecarboxaldehyde;5-ethenyl-3-methyl-imidazole-4-carbaldehyde
5-ethenyl-3-methylimidazole-4-carbaldehyde