Synonyms: Ethenesulfonic acid, sodium salt, polymer with N-ethenylacetamide, hydrolyzed, reaction products with 1-acetyl-6-bromo-4-methyl-3H-naphtho(1,2,3-de)quinoline-2,7-dione;Ethenesulfonic acid, sodium salt, polymer with N-ethenylacetamide, hydrolyzed, reaction products with 1-acetyl-6-bromo-4-methyl-3H-dibenz(f,ij)isoquinoline-2,7-dione