CAS 54193-36-1 appears in our catalog under these names: POLY(METHACRYLIC ACID, SODIUM SALT), 30&, Sodium polymethacrylate Mw 4000-6000,40 wt. % in H2O, Sodium polymethacrylate, Mw 4000-6000,40 wt. % in H2O, Methacrylic acid homopolymer sodium salt, Mw 4000-6000,40 wt. % in H2O. Offered by: Sigma-Aldrich, Ambeed, BLDpharm, Chemat. Available pack sizes: 1L, 1000g, 500g, 1kg.