英文别名3-Pyridazinecarboxylic acid, 1,6-dihydro-4-hydroxy-6-oxo-, ethyl ester; 4,6-dihydroxy-pyridazine-3-carboxylic acid ethyl ester; ethyl 4-hydroxy-6-oxo-1H-pyridazine-3-carboxylate; Ethyl 4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate; 4,6-dihydroxypyridineazine-3-carboxylic acid ethyl ester 
