1-Methyl-5-nitro-1H-imidazole-2-carboxaldehyde (3,4-dihydro-2H-pyrrol-5-yl) hydrazone 1H-Imidazole-2-carboxaldehyde, 1-methyl-5-nitro-, (3,4-dihydro-2H-pyrrol-5-yl)hydrazone 78205-24-0 BRN 4502226