137888-34-7 2H-Azepin-2-one, hexahydro-1-methyl-3-((1-methyl-5-nitro-1H-imidazol-2-yl)methylene)- Hexahydro-1-methyl-3-((1-methyl-5-nitro-1H-imidazol-2-yl)methylene)-2H-azepin-2-one