Synonyms: (3-Methacrylamidopropyl)dimethyl(3-sulfopropyl)ammoniumhydroxide, inner salt (7CI);1-Propanaminium,N,N-dimethyl-N-[3-[(2-methyl-1-oxo-2-propenyl)amino]propyl]-3-sulfo-,hydroxide, inner salt;1-Propanaminium,N,N-dimethyl-N-[3-[(2-methyl-1-oxo-2-propenyl)amino]propyl]-3-sulfo-, innersalt (9CI);Ammonium, (3-methacrylamidopropyl)dimethyl(3-sulfopropyl)-,hydroxide, inner salt (8CI);3-[N,N-Dimethyl-N-(methacrylamidopropyl)ammonium]propanesulfonate;N,N-Dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)ammonium betaine;