146824-77-3 3-Ethoxy-6-methyl-1-(3-(trifluoromethyl)phenyl)-4(1H)-pyridazinone 4(1H)-Pyridazinone, 3-ethoxy-6-methyl-1-(3-(trifluoromethyl)phenyl)- m-Trifluoromethyl phenyl-1 dihydro-1,4 ethoxy-3 oxo-4 methyl-6 pyridazine [French]