sodium 6-amino-5-[[3-[(ethylphenylamino)sulphonyl]-4-methylphenyl]azo]-4-hydroxynaphthalene-2-sulphonate

6-Amino-5-[[3-[(ethylphenylamino)sulfonyl]-4-methylphenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt

Benzenesulfonamide, 5-[[(2-amino-8-hydroxy-6-sulfo)naphthalene-1-yl]azo]-N-ethyl-2-methyl-N-phenyl-, sodium salt

2-Naphthalenesulfonic acid, 6-amino-5-[[3-[(ethylphenylamino)sulfonyl]-4-methylphenyl] azo]-4-hydroxy-, monosodium salt