116917-20-5 Cuprate(2-), diammine(mu-(3-((4'-((2,4-dihydroxyphenyl)azo)-3,3'-dihydroxy(1,1'-biphenyl)-4-yl)azo)-4,5-dihydroxy-6-((4-sulfophenyl)azo)-1-naphthalenesulfonato(6-)))di-, dihydrogen Diammine(mu-(3-((4'-((2,4-dihydroxyphenyl)azo)-3,3'-dihydroxy(1,1'-biphenyl)-4-yl)azo)-4,5-dihydroxy-6-((4-sulfophenyl)azo)-1-naphthalenesulfonato(6-)))dicuprate(2-) dihydrogen