2-Butyryloxyethyltrimethylammonium iodide 2494-56-6 3922-86-9 AMMONIUM, (2-BUTYRYLOXYETHYL)TRIMETHYL-, IODIDE Butyrocholine iodide Butyrylcholine iodide Choline, iodide, butyrate EINECS 219-666-0 Ethanaminium, N,N,N-trimethyl-2-(1-oxobutoxy)-, iodide NSC 97539