Synonyms: Cuprate(3-),[3-[[5-(hydroxy-kO)-4-[[1-(hydroxy-kO)-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo-kN1]-1,5-naphthalenedisulfonato(5-)]-,tripotassium (9CI); Cuprate(3-), [3-[[5-hydroxy-4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]-1,5-naphthalenedisulfonato(5-)]-,tripotassium; 1,5-Naphthalenedisulfonic acid,3-[[5-hydroxy-4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]-,copper complex