Synonyms: 5-Cyclohexene-1,2,3,4-tetrone,5,6-dihydroxy-, disodium salt (8CI,9CI);Rhodizonic acid, disodium deriv.(6CI);Sodium, [(3,4,5,6-tetraoxo-1-cyclohexen-1,2-ylene)dioxy]di- (7CI);Disodium rhodizonate;Sodium,[(3,4,5,6-tetraoxo-1-cyclohexene-1,2-diyl)bis(oxy)]di-;