1-Methyl-5-nitro-2-imidazolecarboxylic acid 2-((5-chloro-2-imidazolyl)methylene)hydrazide 101976-69-6 2-Imidazolecarboxylic acid, 1-methyl-5-nitro-, 2-((5-chloro-2-imidazolyl)methylene)hydrazide