(E)-N-(3-(1-Methyl-2-nitro-1H-imidazol-5-yl)-2-propenylidene)methanamine N-oxide 62143-83-3 BRN 0797161 Methanamine, N-(3-(1-methyl-2-nitro-1H-imidazol-5-yl)-2-propenylidene)-, N-oxide, (E)- N-Methyl-alpha-((1-methyl-2-nitro-1H-imidazol-5-yl)vinyl)nitrone