(2-Hydroxyethyl)trimethylammonium bicarbonate 78-73-9 CHOLINE BICARBONATE Choline hydrogen carbonate Choline, carbonate (1:1) (salt) (8CI) Choline, hydrogen carbonate EINECS 201-137-0 Ethanaminium, 2-hydroxy-N,N,N-trimethyl-, carbonate (1:1) (salt) Hydroxyethyltrimethylammonium bicarbonate NSC 163321