4-((5-((4-Amino-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulphophenyl)azo)-1-(2-chlorophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylicacid, sodium salt 99670-22-1 EINECS 308-995-6