Synonyms: Cuprate(3-),[3-[[5-(hydroxy-kO)-4-[[1-(hydroxy-kO)-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo-kN1]-2-methylphenyl]azo]-1,5-naphthalenedisulfonato(5-)]-,trisodium (9CI); Cuprate(3-), [3-[[5-hydroxy-4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]-1,5-naphthalenedisulfonato(5-)]-,trisodium; 1,5-Naphthalenedisulfonic acid,3-[[5-hydroxy-4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]-,copper complex; C.I. 278675; C.I. Direct Blue 273; Direct Blue 273; Kayact BlueF; Kayafect Blue F; Kayafect Blue F Liquid 400