7,7'-[vinylenebis[(3-sulpho-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-[(aminocarbonyl)amino]-4,1-phenylene]azo]]bisnaphthalene-1,3,6-trisulphonic acid

7,7'-[1,2-Ethenediylbis[(3-sulfo-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-[(aminocarbonyl)amino]-4,1-phenylene]azo]]bis(1,3,6-naphthalenetrisulfonic acid)