Cuprate, [4-hydroxy-5-[(1,2,3,4-tetrahydro-2,4-dioxo-3-quinolinyl)azo]-1,3-benzenedisulfonato]-, disodium

disodium [4-hydroxy-5-[(1,2,3,4-tetrahydro-2,4-dioxo-3-quinolyl)azo]benzene-1,3-disulphonato(4-)]cuprate(2-)

Cuprate(2-), [4-hydroxy-5-[(1,2,3,4-tetrahydro- 2,4-dioxo-3-quinolinyl)azo]-1,3-benzenedisulfonato (4-)]-, disodium