(2S,3S,4S,5R,6S)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid (2S,3S,4S,5R,6S)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-chromen-3-yl]oxy-3,4,5-trihydroxy-tetrahydropyran-2-carboxylic acid (2S,3S,4S,5R,6S)-6-[[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3-chromenyl]oxy]-3,4,5-trihydroxy-2-tetrahydropyrancarboxylic acid (2S,3S,4S,5R,6S)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-keto-chromen-3-yl]oxy-3,4,5-trihydroxy-tetrahydropyran-2-carboxylic acid (2S,3S,4S,5R,6S)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-chromen-3-yl]oxy-3,4,5-trihydroxy-oxane-2-carboxylic acid ACon1_000029 MEGxp0_000321 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3-(.beta.-D-glucopyranuronosyloxy)-5,7-dihydroxy- AIDS-226942 AIDS226942 Quercetin 3-O-.beta.-D-glucuronide