Synonyms: | Sulfurous acid, monosodium salt, reaction products with formaldehyde, sulfonylbis(phenol) and urea, sodium salts;Reaction products of sodium bisulfite with formaldehyde sulfonylbis(phenol) and urea, sodium salts;Sulfomethylated sulfonylbisphenol, polymer with formaldehyde and urea, partial sodium salt |