2-Propene-1-sulfonic acid, 2-methyl-, polymer with 2-propenenitrile 2-Propenenitrile, polymer with 2-methyl-2-propene-1-sulfonic acid 30110-91-9 60650-36-4 AN 69 AN-69 Acrylonitrile-sodium methallylsulfonate copolymer Pan copolymer Polyacrylonitrile RP-6