3(2H)-Pyridazinone, 6-(2-ethyl-1H-imidazol-1-yl)-, (1-methylethylidene)hydrazone 3-(2-Isopropylidenehydrazino)-6-(2-ethylimidazol-1-yl)pyridazine 75792-86-8 ACETONE, 2-(6-(2-ETHYL-1-IMIDAZOLYL)-3-PYRIDAZINYL)HYDRAZONE BRN 5960910