(9,9'-Bianthracene)-2,2'-dicarboxylic acid, 5-((O-(carboxycarbonyl)-beta-D-glucopyranosyl)oxy)-5'-(beta-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-10,10'-dioxo-, (R*,R*)- 11137-63-6 Sennoside E Sennoside F