4,4'-(1,2-Vinylenebis((3-sulpho-p-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulpho-m-phenylene)azo))bis(4,5-dihydro-5-oxo-1-(4-sulphophenyl)1H-pyrazole-3-carboxylic) acid 84434-56-0 EINECS 282-856-7