Synonyms: [9,9'-Bianthracene]-2,2'-dicarboxylicacid, 9,9',10,10'-tetrahydro-4,4',5,5'-tetrahydroxy-10,10'-dioxo-, (R*,S*)-;[9,9'-Bianthracene]-2,2'-dicarboxylic acid,9,9',10,10'-tetrahydro-4,4',5,5'-tetrahydroxy-10,10'-dioxo-, meso- (8CI);Sennidin B; Sennidine B