117-57-7 3-Hydroxy-2-methylcinchoninic acid 3-Hydroxy-4-carboxyquinaldine 3-Hydroxy-4-quinaldinecarboxylic acid 3-Hydroxyquinaldine-4-carboxylic acid 3-Oxyquinaldine-4-carboxylic 4-Quinolinecarboxylic acid, 3-hydroxy-2-methyl- Cinchoninic acid, 3-hydroxy-2-methyl- NSC64848