5H-Pyridazino(3,4-b)(1,4)benzoxazine, 7-ethoxy-10-methyl-2-(4-methylpiperazin-1-yl)- 62637-28-9 7-Ethoxy-10-methyl-2-(4-methylpiperazin-1-yl)-5H-pyridazino(3,4-b)(1,4)benzoxazine BRN 1091733