123169-88-0 2H-1,4-Benzoxazin-3(4H)-one, 7-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)-, (+-)- 6-(3,4-Dihydo-3-oxo-1,4(2H)-benzoxazin-7-yl)-2,3,4,5-tetrahydro-5-methylpyridazin-3-one Bemoradan