(2S,3S,4S,5R,6S)-6-((4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carbonyl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid
(2S,3S,4S,5R,6S)-6-((4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carbonyl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid