2-trimethylazaniumylethyl sulfate 2-trimethylammonioethyl sulfate 4858-96-2 Choline O-sulfate Choline, hydroxide, hydrogen sulfate, inner salt Choline-O-sulfate Ethanaminium, N,N,N-trimethyl-2-(sulfooxy)-, hydroxide, inner salt NSC46242 2-(trimethylammonio)ethyl sulfate CHEBI:16822 CPD-543 choline sulfate C00919