Synonyms: (Carboxymethyl)(3-methacrylamidopropyl)dimethylammoniumhydroxide, inner salt (6CI); 1-Propanaminium,N-(carboxymethyl)-N,N-dimethyl-3-[(2-methyl-1-oxo-2-propenyl)amino]-,hydroxide, inner salt; 1-Propanaminium,N-(carboxymethyl)-N,N-dimethyl-3-[(2-methyl-1-oxo-2-propenyl)amino]-, innersalt (9CI)