Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined

292310 Quaternary ammonium salts and hydroxides; choline and its salts, whether or not chemically defined 292320 Lecithins and other phosphoaminolipids, whether or not chemically defined 292330 Quaternary ammonium salts and hydroxides; tetraethylammonium perfluorooctane sulphonate, whether or not chemically defined 292340 Quaternary ammonium salts and hydroxides; didecyldimethylammonium perfluorooctane sulphonate, whether or not chemically defined 292390 Quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923