72765-59-4 Ethanaminium, N-(carboxymethyl)-N,N-dimethyl-2-((2-methyl-1-oxo-2-propenyl)oxy)-, inner salt, polymer with 2-hydroxyethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate Methyl 2-methyl-2-propenoate, 2-(N,N-dimethyl-N-carboxymethylammonio)ethyl 2-methyl-2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate polymer