Einecs 268-059-7

calcium 2-[(2-hydroxynaphthyl)azo]naphthalene-1,5-disulphonate

2-[(2-Hydroxy-1-naphthalenyl)azo]-1,5-naphthalenedisulfonic acid calcium salt

1,5-Naphthalenedisulfonic acid, 2-((2-hydroxy-1-naphthalenyl)azo)-, calcium salt (1:1)

1,5-Naphthalenedisulfonic acid, 2-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-, calcium salt (1:1)