CAS 20882-04-6 appears in our catalog under these names: 4-[2-(Methacryloyloxy)ethoxy]-4-oxobutanoic Acid (stabilized with MEHQ), >90.0%(GC)(T), 4-(2-(Methacryloyloxy)ethoxy)-4-oxobutanoic acid 95%, MONO-2-(METHACRYLOYLOXY)ETHYL SUCCINATE, Methacryloyloxyethyl succinate, 95%, 95%. Offered by: TCI, Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 25g, 500g, 100g, 250ML, 5g, 10g.