2-Butanaminium, 4-oxo-N,N,N-trimethyl-4-(2-(trimethylammonio)ethoxy)-, diiodide 2-Trimethylammonioethyl 3-trimethylammoniobutyrate diiodide 4-Oxo-N,N,N-trimethyl-4-(2-(trimethylammonio)ethoxy)-2-butanaminium diiodide Choline, iodide, ester with (2-carboxy-1-methylethyl)trimethylammonium iodide EJ4171900