1,4-Benzenedisulfonic acid, 2,2'-[[1,2-ethenediylb

hexasodium 2,2'-[vinylenebis[(3-sulphonato-4,1-phenylene)imino(6-phenoxy-1,3,5-triazine-4,2-diyl)imino]]bis(benzene-1,4-disulphonate)

1,4-Benzenedisulfonic acid, 2,2'-[1,2-ethenediylbis[( 3-sulfo-4,1-phenylene)imino(6-phenoxy-1,3,5-triazine -4,2-diyl)imino]]bis-, hexasodium salt

2,2'-[1,2-Ethenediylbis[[3-[(sodiooxy)sulfonyl]-4,1-phenylene]imino(6-phenoxy-1,3,5-triazine-4,2-diyl)imino]]bis(1,4-benzenedisulfonic acid disodium) salt