2-Quinolinecarboxylic acid, 8-(beta-D-glucopyranosyloxy)-4-hydroxy- 8-(beta-D-glucopyranosyloxy)-4-hydroxy-2-quinolinecarboxylic acid 97451-32-6 Cardinalic acid Xanthurenic acid 8-O-beta-D-glucoside Xanthurenic acid 8-O-glucoside