Polyquaternium 175345-27-6100 % similar Choline62-49-738 % similar Choline hydroxide123-41-134 % similar Trimethyl(2-hydroxyethyl)ammonium iodide17773-10-334 % similar Trimethyl(2-hydroxyethyl)ammonium bromide1927-06-634 % similar Choline chloride67-48-134 % similar