Einecs 280-103-7

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

4-((4-((2-Hydroxy-3,6-disulpho-1-naphthyl)azo)-1-naphthyl)azo)naphthalene-2,6-disulphonic acid, sodium salt

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