sodium 3-[[4-[(2-methoxy-5-methylphenyl)azo]-1-naphthyl]azo]benzenesulphonate

3-[[4-[(2-Methoxy-5-methylphenyl)azo]-1-naphtyl]azo]benzenesulfonic acid sodium salt

Benzenesulfonic acid, 3-[[4-[(2-methoxy-5-methylphenyl) azo]-1-naphthalenyl]azo]-, sodium salt