6-Chloro-1H-benzo[d]imidazole-4-carboxylic acid
6-Bromo-1H-benzo[d]imidazole-4-carboxylic acid
6-Amino-1H-benzo[d]imidazole-4-carboxylic acid
5-Hydroxy-1H-benzo[d]imidazole-4-carboxylic acid
6-Fluoro-1H-benzo[d]imidazole-4-carboxylic acid
2-Amino-1H-benzo[d]imidazole-4-carboxylic acid
