for the following products
3-[[2,5-Dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-4-hydroxy-6-[(sulfophenyl)amino]naphthalene-2-sulfonic acid, potassium sodium salt and 3-[[2,5-Dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-4-hydroxy-6-[(sulfophenyl)amino]naphthalene-2-sulphonic