tetrasodium 3-[[1-hydroxy-6-[[[[4-[(8-hydroxy-3,6-disulphonato-1-naphthyl)azo]-2-methoxy-5-methylphenyl]amino]carbonyl]amino]-3-sulphonato-2-naphthyl]azo]-p-anisate

Benzoic acid, 3-[[1-hydroxy-6-[[[[4-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-2-methoxy-5-methylphenyl]amino]carbonyl] amino]-3-sulfo-2-naphthalenyl]azo]-4-methoxy-, tetrasodium salt

3-[[1-Hydroxy-6-[[[[4-[[8-hydroxy-3,6-bis(sodiooxysulfonyl)-1-naphtyl]azo]-2-methoxy-5-methylphenyl]amino]carbonyl]amino]-3-sodiooxysulfonyl-2-naphtyl]azo]-4-methoxybenzoic acid sodium salt