1H-Pyrazole-3-carboxylic acid, 4-((4-((4-chloro-6-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)azo)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, sodium salt 4-((4-((4-Chloro-6-((4-((2-(sulphooxy)ethyl)sulphonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)-2-sulphophenyl)azo)-4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid, sodium salt 94157-83-2 EINECS 303-050-4