4,4-(p-Phenylenebis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino))bis(5-hydroxy-6-((2-sulphophenyl)azo)naphthalene-2,7-disulphonic)acid, potassium sodium salt
4,4-(p-Phenylenebis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino))bis(5-hydroxy-6-((2-sulphophenyl)azo)naphthalene-2,7-disulphonic)acid, potassium sodium salt