Synonyms: Copper,[tetrahydrogen3-[[8-[(4-amino-6-chloro-s-triazin-2-yl)amino]-1-hydroxy-3,6-disulfo-2-naphthyl]azo]-4-hydroxy-1,5-naphthalenedisulfonato(2-)]-,tetrasodium salt (7CI); Cuprate(4-), [3-[[8-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-1-(hydroxy-kO)-3,6-disulfo-2-naphthalenyl]azo-kN1]-4-(hydroxy-kO)-1,5-naphthalenedisulfonato(6-)]-,tetrasodium (9CI); Cuprate(4-),[3-[[8-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-4-hydroxy-1,5-naphthalenedisulfonato(6-)]-,tetrasodium; 1,5-Naphthalenedisulfonic acid,3-[[8-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-4-hydroxy-,copper complex