Direct Blue 15 (Technical Grade)

2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-, tetrasodium salt (9CI); C.I. Direct Blue 15 (8CI); Direct Sky Blue (6CI); Airedale Blue D; Aizen Direct Sky Blue 5B; Aizen Direct Sky Blue 5BH; Amanil Sky Blue; Atlantic Sky Blue A; Atul Direct Sky Blue; Azine Sky Blue 5B; Belamine Sky Blue A; Benzanil Sky Blue; Benzo Sky Blue A-CF; Benzo Sky Blue S; C.I. 24400; Cartasol Blue 2GF; Chloramine Sky Blue 4B; Chloramine Sky Blue A; Chrome Leather Pure Blue; Cresotine Pure Blue; Diacotton Sky Blue 5B; Diamine Blue 6B; Diamine Sky Blue; Diaphtamine Pure Blue; Diazol Pure Blue 4B; Diphenyl Brilliant Blue; Diphenyl Sky Blue 6B; Direct Blue 10G; Direct Blue 15; Direct Blue FFN; Direct Blue FFN-B 15; Direct Blue HH; Direct Lake Blue 5B; Direct Pure Blue; Direct Pure Blue M; Direct Sky Blue 5B; Direct Sky Blue A; Enianil Pure Blue AN; Fenamin Sky Blue; Hispamin Sky Blue 3B; Kayafect Blue Y; Kayaku Direct Sky Blue 5B; Lake Blue 5B; Methyl Violet 5BN; Mitsui Direct Sky Blue 5B; Naphtamine Blue 10G; Niagara Blue 4B; Niagara Sky Blue; Nippon Direct Sky Blue; Nippon Sky Blue; Nitto Direct Sky Blue 5B; Oxamine Sky Blue 5B; Paper Blue S; Phenamine Sky Blue A; Pontamine Sky Blue 5BX; Resacor Blue 2F; Shikiso Direct Sky Blue 5B; Sky Blue 4B; Sky Blue 5B; Tertrodirect Blue F; Vondacel Blue HH

[Na+].[Na+].[Na+].[Na+].COc1cc(ccc1N=Nc2c(O)c3c(N)cc(cc3cc2S(=O)(=O)[O-])S(=O)(=O)[O-])c4ccc(N=Nc5c(O)c6c(N)cc(cc6cc5S(=O)(=O)[O-])S(=O)(=O)[O-])c(OC)c4

InChI=1S/C34H28N6O16S4.4Na/c1-55-25-9-15(3-5-23(25)37-39-31-27(59(49,50)51)11-17-7-19(57(43,44)45)13-21(35)29(17)33(31)41)16-4-6-24(26(10-16)56-2)38-40-32-28(60(52,53)54)12-18-8-20(58(46,47)48)14-22(36)30(18)34(32)42;;;;/h3-14,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4

IUPAC name: tetrasodium;5-amino-3-[(E)-[4-[4-[(E)-(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate