72139-09-4 Cuprate(2-), (4-(hydroxy-kappaO)-5-((1,2,3,4-tetrahydro-2-oxo-4-(oxo-kappaO)-3-quinolinyl)azo-kappaN1)-1,3-benzenedisulfonato(4-))-, disodium Cuprate(2-), (4-hydroxy-5-((1,2,3,4-tetrahydro-2,4-dioxo-3-quinolinyl)azo)-1,3-benzenedisulfonato(4-))-, disodium Disodium (4-hydroxy-5-((1,2,3,4-tetrahydro-2,4-dioxo-3-quinolyl)azo)benzene-1,3-disulphonato(4-))cuprate(2-) EINECS 276-365-7