| (4-(2-oxo-1-pyrrolidinyl)butyl)trimethyl-ammoniu iodide |
| (4-(2-oxo-1-pyrrolidinyl)butyl)trimethylammonium iodide |
| trimethyl(4-(2-oxo-1-pyrrolidinyl)butyl)-ammoniu iodide |
| trimethyl(4-(2-oxopyrrolidin-1-yl)butyl)ammonium iodide |
| (4-(2-oxo-1-pyrrolidinyl)butyl)trimethyl-ammoniuiodide |
