Direct Blue 71 (Technical Grade)

1,5-Naphthalenedisulfonic acid, 3-[[4-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, tetrasodium salt (9CI); C.I. Direct Blue 71 (7CI); C.I. Direct Blue 71, tetrasodium salt (8CI); Saturn Blue LBRR (6CI); Amanil FastBlue FFB; B2Rl; Belamine Fast Blue FFC; Benzanil Supra Blue BRR; C.I. 34140; Calcodur Blue SL; Chlorantine Fast Blue FFC; Chlorantine Fast BlueGLL; Chlorantine Fast Blue GLN; Dialuminous Blue BRR; Diaphtamine Blue FFL; Diazol Light Blue R; Dicorel Blue L 2R; Diphenyl Fast Blue GL;Diphenyl Fast Blue GLN; Direct Blue B 2RL; Direct Blue GLL; Direct Dark Blue L 3RB; Direct Deep Blue L 3RB; Direct Fast Blue; DirectFast Blue FF; Direct Fast Blue GLL; Direct Fast Blue L 2R; Direct Light Blue BRR; Direct Light Blue MFL; Direct Light Blue RS; Direct Lightfast Blue;Direct Lightfast Blue B 2RL; Direct Lightfast Navy Blue; Durazol Blue 2R; EMPA 133; Eliamina Blue FFL; Enianil Light Blue FFL; Fastusol Blue LBRRA;Fenaluz Blue FR; Fixanol Blue 2R; Helion Blue BRRL; Hispaluz Blue FF; Lightfast Blue; N.S. Fast Blue FR; Optisal Blue RL; Orbantin Blue BRR;Paranol Fast Blue FFL; Pontamine Fast Blue SFL; Pyrazol Fast Blue BS; Pyrazoline Blue GF; Reactive Blue GL; Sirius Blue S-RR; Sirius Light BlueBRR; Sirius Supra Blue BRR; Solamine Fast Blue BRR; Solantine Blue FF; Solar Blue G; Solius Light Blue BRR; Solophenyl Blue GL; Sumilight SupraBlue BRR; Suprazo Blue BRR; Suprexcel Blue 2GL; Tertrodirect Fast Blue R; Tetramine Fast Blue B 2R Extra; Triantine Fast Blue BLRN; TriantineLight Blue FRL

[Na+].[Na+].[Na+].[Na+].Nc1ccc2c(O)c(N=Nc3ccc(N=Nc4ccc(N=Nc5cc(c6cccc(c6c5)S(=O)(=O)[O-])S(=O)(=O)[O-])c7ccccc47)c8ccc(cc38)S(=O)(=O)[O-])c(cc2c1)S(=O)(=O)[O-]