4,4'-((2-Sulpho-1,4-phenylene)bis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulpho-3,1-phenylene)azo))bis(4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic) acid 84434-55-9 EINECS 282-855-1