Synonyms: Cuprate(4-),[8-(hydroxy-kO)-7-[[2-(hydroxy-kO)-5-hydroxy-7-sulfo-6-[[4-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1-naphthalenyl]azo-kN1]-1,3,5-naphthalenetrisulfonato(6-)]-,tetrasodium (9CI); Cuprate(4-),[8-hydroxy-7-[[2,5-dihydroxy-7-sulfo-6-[[4-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1-naphthalenyl]azo]-1,3,5-naphthalenetrisulfonato(6-)]-,tetrasodium