Cuprate, [μ-[[4,4'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-hydroxy-2,7-naphthalenedisulfonato]]]]di-, tetrasodium

tetrasodium [mu-[[4,4'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)

Cuprate, [μ-[[4,4'-[[3,3'-di(hydroxy-κO)[1,1'-biphenyl]-4,4'-diyl]bis(azo-κN')]bis[3-(hydroxy-κO)-2,7-naphthalenedisulfonato]] ]]di-, tetrasodium

Cuprate(4-), .mu.-4,4-3,3-di(hydroxy-.kappa.O)1,1-biphenyl-4,4-diylbis(azo-.kappa.N1)bis3-(hydroxy-.kappa.O)-2,7-naphthalenedisulfonato(8-)di-, tetrasodium