Synonyms: 62609-81-8;Butanoic acid, 3-oxo-, 2-((2-methyl-1-oxo-2-propen-1-yl)oxy)ethyl ester, polymer with butyl 2-propenoate and sodium 2-methyl-2-((1-oxo-2-propen-1-yl)amino)-1-propanesulfonate (1:1);Butanoic acid, 3-oxo-, 2-((2-methyl-1-oxo-2-propenyl)oxy)ethyl ester, polymer with butyl 2-propenoate and 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid monosodium salt;Polymer of n-butyl acrylate, 2-acrylamido-2-methylpropanesulfonic acid, sodium salt and 2-acetoacetoxyethyl methacrylate