5-Chloro-1-methyl-1H-imidazole872-49-150 % similar 5-Bromo-1-methyl-1H-imidazole1003-21-048 % similar 1H-Imidazole, 5-chloro-1-methyl-, nitrate (1:1)4531-53-734 % similar 3-Methylhistidine368-16-131 % similar