61785-73-7 7-(4-(3-Methylphenyl)-1-piperazinyl)-4-nitrobenzofurazan 1-oxide B2740 BENZOFURAZAN, 7-(4-(3-METHYLPHENYL)-1-PIPERAZINYL)-4-NITRO-, 1-OXIDE Benzofurazan, 7-(4-(m-tolyl)-1-piperazinyl)-4-nitro-, 1-oxide