(-)-(9R*,9'r*)-5,5'-bis(beta-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylic acid{}(-)-(9R*,9'r*)-5,5'-bis(b-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylate{}(-)-(9R*,9'r*)-5,5'-bis(b-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylic acid{}(-)-(9R*,9'r*)-5,5'-bis(beta-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylate{}(-)-(9R*,9'r*)-5,5'-bis(β-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylate{}(-)-(9R*,9'r*)-5,5'-bis(β-D-glucopyranosyloxy)-4,4'-dihydroxy-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2,2'-dicarboxylic acid{}Pursennid{}Sennoside a calcium{}Sennosides{}Senna glycoside{}Sennoside a and b, calcium salt{}Sennoside a calcium and sennoside b calcium{}Sennoside b, calcium salt{}Sennoside b calcium{}Sennosides a and b{}Sennosides a and b acids{}Senokot{}Sennoside a+b calcium{}Sennoside a, calcium salt{}Sennoside{}Sennoside a and b{}Sennoside a, calcium salt (1:1){}Amyran{}Exprep{}Glaxenna{}Moivat{}Senan{}Tisasen a{}Sennoside b{}ND 10{}ND-10{}(9,9'-Bianthracene)-2,2'-dicarboxylic acid, 5,5'-bis(beta-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-10,10'-dioxo-, calcium salt (1:1){}(9R,9's)-5,5'-Bis(beta-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-10,10'-dioxo(9,9'-bianthracene)-2,2'-dicarboxylic acid{}(9R,9R)-5,5-Bis(beta-D-glucopyranosyloxy)-9,9,10,10-tetrahydro-4,4-dihydroxy-10,10-dioxo(9,9-bianthracene)-2,2-dicarboxylic acid{}(R*,r*)-5,5'-bis(beta-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-10,10'-dioxo(9,9'-bianthracene)-2,2'-dicarboxylic acid{}Sennosides sennoside b{}Sennosides sennoside a{}(9,9'-Bianthracene)-2,2'-dicarboxylic acid, 5,5'-bis(beta-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-10,10'-dioxo-, (9R,9's)-, calcium salt