93893-72-2 Cuprate(3-), (mu-(5-((4-((6-(4-((2-carboxyphenyl)azo)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-2-hydroxy-4-sulfo-1-naphthalenyl)azo)-3-hydroxy-7-sulfo-1-naphthalenyl)azo)-2-hydroxybenzoato(7-)))di-, trihydrogen EINECS 299-663-9