2-Quinolinecarboxylic acid, 4,8-dihydroxy- (9CI) 4,8-Dihydroxyquinaldic acid 4,8-Dihydroxyquinaldinic acid 4,8-Dihydroxyquinoline-2-carboxylic acid 4-22-00-02513 (Beilstein Handbook Reference) 59-00-7 8-Hydroxykynurenic acid BRN 0185954 CCRIS 4429 EINECS 200-410-1 NSC 401570 QUINALDIC ACID, 4,8-DIHYDROXY- Xanthurenic acid Xanthuric acid