Synonyms: 1,4-Benzenedisulfonicacid, 2-[[4-[[6-[(4-amino-6-chloro-1,3,5-triazin-2-yl)methylamino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-5-hydroxy-2-methylphenyl]azo]-,copper complex (9CI); Copper,2-[[4-[[6-[(4-amino-6-chloro-1,3,5-triazin-2-yl)methylamino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-5-hydroxy-2-methylphenyl]azo]-1,4-benzenedisulfonicacid complex (9CI); C.I. 284250; Cibacron Navy Blue R-E; Procion Navy Blue H4R; Procion Navy H 4R; Reactive Blue 40