3-Ethoxycarbonyl-4-quinolinol;4-Hydroxyquinoline-3-carboxylic acid ethyl ester;Ethyl 4-hydroxyquinoline-3-carboxylate;NSC 4345;4-Oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester;3-Quinolinecarboxylic acid, 1,4-dihydro-4-oxo-, ethyl ester;
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