2-Trimethylammonium-1-methylethyl methylphosphonofluoridate iodide 3873-20-9 AMMONIUM, (2-HYDROXYPROPYL)TRIMETHYL-, IODIDE, METHYLPHOSPHONOFLUORIDATE, (ester Ammonium, (2-hydroxypropyl)trimethyl-, iodide, methylphosphonofluoridate, (ester) Methyl fluorophosphoryl beta-methylcholine iodide