85959-27-9 Disodium 2-((4-((2-amino-4-((4,5-dihydro-3-methyl-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazol-4-yl)azo)-5-nitrophenyl)azo)phenyl)amino)-5-nitrobenzenesulphonate EINECS 289-019-5