CAS 62649-23-4 appears in our catalog under these names: Poly(acrylamide-co-acrylic acid) partial sodium, POLY(ACRYLAMIDE-CO-ACRYLIC ACID), SODIU&, 2-Propenoic acid, polymer with 2-propenamide and sodium 2-propenoate (1:1), Mw 520,000, Mn 150,000 (Typical), acrylamide ~80 wt. %, Mw 520,000, Mn 150,000 (Typical), acrylamide ~80 wt. %. Offered by: Biosynth, Sigma-Aldrich, Chemat. Available pack sizes: 1kg, 250G, 5g, 25g.