Einecs 280-102-1

4-[[4-[(3,6-disulpho-1-naphthyl)azo]-1-naphthyl]azo]-3-hydroxynaphthalene-2,7-disulphonic acid, sodium salt

4-((4-((3,6-Disulpho-1-naphthyl)azo)-1-naphthyl)azo)-3-hydroxynaphthalene-2,7-disulphonic acid, sodium salt

2,7-Naphthalenedisulfonic acid, 4-[[4-[(3,6-disulfo-1-naphthalenyl) azo]-1-naphthalenyl]azo]-3-hydroxy-, sodium salt