2-Quinolinecarboxylic acid, 4,8-dihydroxy- 4,8-Dihydroxy-2-quinolinecarboxylic acid 4,8-Dihydroxyquinaldic acid 4,8-Dihydroxyquinaldinic acid 4,8-Dihydroxyquinoline-2-carboxylic acid 59-00-7 8-Hydroxykynurenic acid NSC401570 Quinaldic acid, 4,8-dihydroxy- WLN: T66 BNJ CVQ EQ JQ XANTHURENIC ACID Xanthuric acid