3-Quinolinecarboxylic acid, 1,4-dihydro-8-methoxy-4-oxo-;3-quinolinecarboxylic acid, 4-hydroxy-8-methoxy-;4-Hydroxy-8-methoxyquinoline-3-carboxylic acid;8-Methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
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