1-Piperazinecarboxaldehyde, 4-(7-nitro-4-benzofurazanyl)-, 3-oxide 4-(4-Formylpiperazinyl)-7-nitrobenzofuroxan 4-(7-Nitro-4-benzofurazanyl)-1-piperazinecarboxaldehyde 3-oxide 61785-55-5 B2748 Benzofurazan, 4-(4-formyl-1-piperazinyl)-7-nitro-, 3-oxide NSC 228102