2,2'-[1,4-Phenylenebis[imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(8-hydroxy-3,6-disulfo-7,1-naphthalenediyl)azo]]bis(1,5-naphthalenedisulfonic acid)

2,2'-[1,4-phenylenebis[imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(8-hydroxy-3,6-disulphonaphthalene-1,7-diyl)azo]]bisnaphthalene-1,5-disulphonic acid