2-Carboxyquinoline 2-Quinolinecarboxylic acid 2-Quinolinylcarboxylic acid 5-22-03-00183 (Beilstein Handbook Reference) 93-10-7 AI3-18872 BRN 0126322 EINECS 202-218-3 NSC 4882 QUINALDIC ACID Quinaldinic acid Quinoline-2-carboxylic acid