Synonyms: Cuprate(3-),[5-(acetylamino)-4-(hydroxy-kO)-3-[[2-(hydroxy-kO)-5-methoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo-kN1]-2,7-naphthalenedisulfonato(5-)]-,trisodium (9CI); Cuprate(3-), [5-(acetylamino)-4-hydroxy-3-[[2-hydroxy-5-methoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonato(5-)]-,trisodium; 2,7-Naphthalenedisulfonic acid,5-(acetylamino)-4-hydroxy-3-[[2-hydroxy-5-methoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-,copper complex