disodium 5-[[4-[[[[4-[(4-chloro-3-sulphonatophenyl)azo]-2-ethoxy-5-tolyl]amino]carbonyl]amino]phenyl]azo]salicylate

5-[[4-[[[[4-[(4-Chloro-3-sulfophenyl)azo]-2-ethoxy-5-methylphenyl]amino]carbonyl]amino]phenyl]azo]-2-hydroxybenzoic acid disodium salt