1,5-Naphthalenedisulfonic acid, 2-((2-hydroxy-1-naphthalenyl)azo), barium salt (1:1) 1,5-Naphthalenedisulfonic acid, 2-((2-hydroxy-1-naphthalenyl)azo)-, barium salt (1:1) 1,5-Naphthalenedisulfonic acid, 2-((2-hydroxy-1-naphthalenyl)azo)-,barium salt (1:1) 2-((2-Hydroxy-1-naphthalenyl)azo)-1,5-naphthalenedisulfonic acid, barium salt (1:1) 67892-47-1 Barium 2-((2-hydroxynaphthyl)azo)naphthalene-1,5-disulphonate EINECS 267-580-7