trisodium 6-methyl-2-[4-[[2-oxo-1-[[(4-sulphonato-1-naphthyl)amino]carbonyl]propyl]azo]-3-sulphonatophenyl]benzothiazole-7-sulphonate

6-Methyl-2-[4-[[2-oxo-1-[[(4-sulfo-1-naphthalenyl)amino]carbonyl]propyl]azo]-3-sulfophenyl]-7-benzothiazolesulfonic acid trisodium salt

7-Benzothiazolesulfonic acid, 6-methyl-2-[4-[[2-oxo-1-[[(4-sulfo-1-naphthalenyl)amino]carbonyl]propyl]azo]-3-sulfophenyl]-, trisodium salt