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8-Methoxy-4-oxo-1,4-dihydro-quinoline-2-carboxylic Acid is a quinolone alkaloid with antibacterial activity from Lappula echinata.

ChEBI: 4-hydroxy-8-methoxyquinaldic acid is a quinolinemonocarboxylic acid that is kynurenic acid which is substituted by a methoxy group at position 8. It has a role as a metabolite, a carcinogenic agent and a mouse metabolite. It is a quinolinemonocarboxylic acid, a monohydroxyquinoline and an aromatic ether. It is functionally related to a kynurenic acid.