United States · Heading· 5 subheadings· 0 codes

2923Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined

Subheadings (6-digit WCO)

292310Choline and its salts→292320Lecithins and other phosphoaminolipids→292330Tetraethylammonium perfluorooctane sulphonate→292340Didecyldimethylammonium perfluorooctane sulphonate→292390Other→
United States HS 2923 · Quaternary ammonium salts and hydroxides; lecithins and othe · Treayo