10-Methyl-1-(4-methyl-1-piperazinyl)-7-nitro-10H-pyridazino(4,5-b)(1,4)benzoxazine 10H-Pyridazino(4,5-b)(1,4)benzoxazine, 10-methyl-1-(4-methyl-1-piperazinyl)-7-nitro- 64610-56-6 BRN 0588933