(2-Mercaptoethyl)trimethylammonium iodide propionate 1866-73-5 Ammonium, (2-mercaptoethyl)trimethyl-, iodide, propionate Ethanaminium, N,N,N-trimethyl-2-[(1-oxopropyl)thio]-, iodide NSC97015 Propionylthiocholine iodide