2-((1-(Anilinocarbonyl)-2-oxopropyl)azo)-5-((((3-carboxy-4-((4,5-dihydro-3-methyl-5-oxo-1-(3-sulphophenyl)-1H-pyrazol-4-yl)azo)phenyl)amino)carbonyl)amino)benzoic acid, potassium sodium salt 84100-80-1 EINECS 282-160-3