2-(4-Methyl-1-piperazinyl)-7-nitro-10-methyl-3,4-diazaphenoxazine 5-Methyl-3-(4-methyl-1-piperazinyl)-8-nitro-5H-pyridazino(3,4-b)(1,4)benzoxazine 5H-Pyridazino(3,4-b)(1,4)benzoxazine, 5-methyl-3-(4-methyl-1-piperazinyl)-8-nitro- 61939-60-4