29.23Heading
Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
Section VI — Products of the chemical or allied industries
| Code | Description |
|---|---|
| 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 |