英文别名6-oxo-1,6-dihydropyridazine-4-carboxylic acid ethyl ester; 4-Pyridazinecarboxylic acid, 1,6-dihydro-6-oxo-, ethyl ester; 1,6-dihydro-6-oxo-4-Pyridazinecarboxylic acid Ethyl ester; Ethyl 6-hydroxypyridazine-4-carboxylate; Ethyl 1,6-dihydro-6-oxo-4-pyridazinecarboxylate; 6-oxo-1,6-dihydropyridazine-4-carboxylate ethyl ester; ethyl 6-oxo-1H-pyridazine-4-carboxylate; 6-oxo-1,6-dihydro-pyridazine-4-carboxylic acid ethyl ester; 6-Oxo-1,6-dihydro-pyridazin-4-carbonsaeure-aethylester; 4-Carbethoxy-6-pyridazon 
