68239-45-2 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-, tetrahydrogen Cuprate(4-), (mu-((6,6'-((3,3'-dihydroxy(1,1'-biphenyl)-4,4'-diylbis(azo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)))bis(1,3-naphthalenesulfonato))(8-)))di-, tetrahydrogen