67952-81-2 Copper, (tetrahydrogen 3,3'-dihydroxy-4,4'-bis((3-methyl-5-oxo-1-(5,7-disulfonato-2-naphthenyl)-2-pyrazolin-4-yl)azo)-1,1'-biphenyl)di-, tetrasodium salt Cuprate(4-), (mu-((6,6'-((3,3'-di(hydroxy-kappaO)(1,1'-biphenyl)-4,4'-diyl)bis((azo-kappaN1)(4,5-dihydro-3-methyl-5-(oxo-kappaO)-1H-pyrazole-4,1-diyl)))bis(1,3-naphthalenedisulfonato))(8-)))di-, tetrasodium Cuprate(4-), (mu-((6,6'-((3,3'-dihydroxy(1,1'-biphenyl)-4,4'-diyl)bis(azo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)))bis(1,3-naphthalenedisulfonato))(8-)))di-, tetrasodium EINECS 267-927-2 Tetrasodium (mu-((6,6'-((3,3'-dihydroxy(1,1'-biphenyl)-4,4'-diyl)bis(azo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)))bis(naphthalene-1,3-disulphonato))(8-)))dicuprate(4-)