2-(4'-Maleimidylanilino)naphthalene-6-sulfonic acid sodium salt 2-Naphthalenesulfonic acid, 6-((4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenyl)amino)-, monosodium salt 6-(4-Toluidinyl)naphthalene-2-sulfonate sodium 71936-81-7 MIANS Monosodium 6-((4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenyl)amino)-2-naphthalenesulfate