Sennoside B Calcium Salt

52730-37-7

(9R,9'S)-4,4'-Dihydroxy-10,10'-dioxo-5,5'-bis(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-9,9',10,10'-tetrahydro-[9,9'-bianthracene]-2,2'-dicarboxylic acid, calcium salt (1:x); [9,9′-Bianthracene]-2,2′-dicarboxylic acid, 5,5′-bis(β-D-glucopyranosyloxy)-9,9′,10,10′-tetrahydro-4,4′-dihydroxy-10,10′-dioxo-, calcium salt (1:x), (9R,9′S);