Subheadings 5
2923.10 Quaternary ammonium salts and hydroxides; choline and its salts, whether or not chemically defined 2923.20 Lecithins and other phosphoaminolipids, whether or not chemically defined 2923.30 Quaternary ammonium salts and hydroxides; tetraethylammonium perfluorooctane sulphonate, whether or not chemically defined 2923.40 Quaternary ammonium salts and hydroxides; didecyldimethylammonium perfluorooctane sulphonate, whether or not chemically defined 2923.90 Quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923
Industry
This code belongs to the Chemicals industry.