(2-Mercaptoethyl)trimethylammonium iodide butyrate (Propylcarbonylthioethyl)trimethylammonium iodide 1866-16-6 Ammonium, (2-mercaptoethyl)trimethyl-, iodide, butyrate (8CI) Butyrylthiocholine iodide EINECS 217-475-7 Ethanaminium, N,N,N-trimethyl-2-((1-oxobutyl)thio)-, iodide Ethanaminium, N,N,N-trimethyl-2-[(1-oxobutyl)thio]-, iodide NSC 91564