5-((4-(((4-((2,6-Diamino-3-methyl-5-((4-sulphophenyl)azo)phenyl)azo)phenyl)amino)carbonyl)phenyl)azo)salicylic acid 56918-92-4 Benzoic acid, 5-((4-(((4-((2,6-diamino-3-methyl-5-((4-sulfophenyl)azo)phenyl)azo)phenyl)amino)carbonyl)phenyl)azo)-2-hydroxy- EINECS 260-432-2