CAS 6900-35-2 appears in our catalog under these names: 2-Propenoic acid, 2-methyl-, potassium salt (1:1), 98%, 98%, Potassium methacrylate,95%, Potassium methacrylate, 95%. Offered by: Chemat, GLPBio, Fluorochem. Available pack sizes: 25g, 100g, 500g, 50g, 250g, 5g.