Dinatrium-5,5′-[(1-methylethyliden)bis(4,1-phenylenoxysulfonyl-2,1-phenylenazo)]bis[6-aminonaphthalin-1-sulfonat]

disodium 5,5'-[(1-methylethylidene)bis(4,1-phenyleneoxysulphonyl-2,1-phenyleneazo)]bis[6-aminonaphthalene-1-sulphonate]

5,5'-[1-Methylethylidenebis(4,1-phenyleneoxysulfonyl-2,1-phenyleneazo)]bis(6-amino-1-naphthalenesulfonic acid)disodium salt

1-Naphthalenesulfonic acid, 5,5-(1-methylethylidene)bis(4,1-phenyleneoxysulfonyl-2,1-phenyleneazo)bis6-amino-, disodium salt