Kresol-Schaeffersalz-Formaldehydkondensationsprodukt, sulfiert

Cresol, formaldehyde, 6-hydroxynaphthalene-2-sulfonic acid sodium salt, sodium sulfite polymer

2-Naphthalenesulfonic acid, 6-hydroxy-, monosodium salt, polymer with disodium sulfite, formaldehyde and methylphenol