Synonyms: [7,7'-Bi-4aH-xanthene]-4a,4'a-dicarboxylicacid,2,2',3,3',4,4',9,9'-octahydro-1,1',4,4',8,8'-hexahydroxy-3,3'-dimethyl-9,9'-dioxo-,dimethyl ester, (3S,3'S,4R,4'R,4aR,4'aR)- (9CI);[7,7'-Bi-4aH-xanthene]-4a,4'a-dicarboxylic acid, 2,2',3,3',4,4',9,9'-octahydro-1,1',4,4',8,8'-hexahydroxy-3,3'-dimethyl-9,9'-dioxo-,dimethyl ester, [3S-[3a,4b,4ab,7(3'R*,4'S*,4'aS*)]]-; NSC 159631; NSC 268922;Secalonic acid D