The Complete List of Suppliers for Cuprate(4-),[2-[2-[[4-[(2-chloroethyl)sulfonyl]phenyl][2-[2-(hydroxy-kO)-5-sulfo-3-[[[[2-[[2-(sulfooxy)ethyl]sulfonyl]ethyl]amino]carbonyl]amino]phenyl]diazenyl-kN2]methyl]diazenyl-kN1]-4-sulfobenzoato(6-)-kO]-, sodium (1:4)