3-Quinolinecarboxylic acid, 4-hydroxy-6-nitro- 35973-24-1 4-22-00-02268 (Beilstein Handbook Reference) 4-Hydroxy-6-nitro-3-carboxyquinoline 4-Hydroxy-6-nitro-3-quinolinecarboxylic acid BRN 0239339 NSC 77094