4-Amino-3-((4-((5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino)phenyl)azo)-6-((2,5-disulphophenyl)azo)-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt 83400-07-1 EINECS 280-422-1