Also Called: Cuprate(4-), [7-[[4-[[5-[(5-chloro-2,6- difluoro-4-pyrimidinyl)amino]-2-methoxy-3-sulfophenyl ]azo]-2-hydroxyphenyl]azo]-8-hydroxy-1,3,6-naphthalenetrisulfonat o(6-)]-, tetrasodium;Cuprate(4-), [7-[2-[4-[2-[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-methoxy-3-sulfophenyl]diazenyl]-2-(hydroxy-.kappa.O)phenyl]diazenyl-.kappa.N1]-8-(hydroxy-.kappa.O)-1,3,6-naphthalenetrisulfonato(6-)]-, sodium (1:4);Cuprate(4-), [7-[[4-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-methoxy-3-sulfophenyl]azo]-2-hydroxyphenyl]azo]-8-hydroxy-1,3,6-naphthalenetrisulfonato(6-)]-, tetrasodium