Synonyms: sodium 6-aminonaphthalene-2-sulphonate;6-Aminonaphthalin-2-sulfonsure, Na-Salz;2-Naphthalenesulfonic acid, 6-amino-, monosodium salt;6-Amino-2-naphthalenesulfonic acid, monosodium salt;6-Amino-2-naphthalenesulfonic acid sodium salt;2-Naphthalenesulfonic acid, 6-amino-, sodium salt (1:1);2-Naphthylamine-6-sulfonic acid, sodium salt;Einecs 261-207-1