1-Methyl-4-((1-methyl-5-nitro-1H-imidazol-2-yl)methyl)piperazine 5-25-09-00497 (Beilstein Handbook Reference) 54387-29-0 BRN 0887947 DA 3804 Piperazine, 1-methyl-4-((1-methyl-5-nitro-1H-imidazol-2-yl)methyl)-