Synonyms: Cerulignone(6CI);Diphenoquinone, 3,3',5,5'-tetramethoxy- (7CI);[Bi-2,5-cyclohexadien-1-ylidene]-4,4'-dione,3,3',5,5'-tetramethoxy- (8CI);3,3',5,5'-Tetramethoxy-p-biphenoquinone;3,3',5,5'-Tetramethoxydiphenoquinone;Cedriret;Coerulignon;Coerulignone;NSC401175;NSC 406032