Synonyms: Aizen Direct Sky Blue 5B;Airedale Blue D;Kayafect Blue Y;Nippon Sky Blue;Direct Pure Blue;Diamine Blue 6B;Niagara Blue 4B;Paper Blue S;Benzanil Sky Blue;Direct Pure Blue N;Azine Sky Blue 5B;CI Direct Blue 15;Diazol Pure Blue 4B;Oxamine Sky Blue 5B;Chloramine Sky Blue A;Amanil Sky Blue;DIRECT BLUE 15;C.I. Direct Blue 15;Modr Prima 15 [Czech];Nitsui Direct Sky Blue 5B;Aizen Direct Sky Blue 5BH;CCRIS 2419;HSDB 4227;NCI C61290;NSC 9616;EINECS 219-385-3;NSC 47757;Modr Prima 15;C.I. 24400;AC1O425I;C.I. Direct Blue 15 (8CI);2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt;2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt;2429-74-5;Tetrasodium 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxynaphthalene-2,7-disulphonate);AKOS000282876;71550-22-6 (tetra-lithium salt);68966-50-7 (unspecified hydrochloride salt);120146-64-7;2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, sodium salt (1:4);51568-94-6;95032-75-0;tetrasodium (3Z)-5-amino-3-[[4-[4-[(2Z)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2-ylidene)hydrazinyl]-3-methoxyphenyl]-2-methoxyphenyl]hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate