HS code 2923: IX. NITROGEN-FUNCTION COMPOUNDS | Quaternary ammonium salts
Heading 2923 of the EU Combined Nomenclature 2026, in chapter 29, with the official text of every 6-digit subheading and 8-digit CN code below it.
Official description
2923IX. NITROGEN-FUNCTION COMPOUNDS | Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
Place in the nomenclature: 29 Organic chemicals > 2923
Explanatory note (Eurostat)
Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
- Subheadings (6 digits)
- 5
- CN codes (8 digits)
- 5
Subheadings and CN codes in heading 2923
- 2923 10Choline and its salts
- 2923 10 00 Choline and its salts
- 2923 20Lecithins and other phosphoaminolipids
Explanatory note (Eurostat): Lecithins and other phosphoaminolipids, whether or not chemically defined
- 2923 20 00 Lecithins and other phosphoaminolipids
- 2923 30Tetraethylammonium perfluorooctane sulphonate
- 2923 30 00 Tetraethylammonium perfluorooctane sulphonate
- 2923 40Didecyldimethylammonium perfluorooctane sulphonate
- 2923 40 00 Didecyldimethylammonium perfluorooctane sulphonate
- 2923 90Other
Explanatory note (Eurostat): Quaternary ammonium salts and hydroxides (excl. choline and its salts, tetraethylammonium perfluorooctane sulphonate and didecyldimethylammonium perfluorooctane sulphonate)
- 2923 90 00 Other
The first 6 digits are the Harmonized System, shared worldwide: a US HTS code that starts with the same 6 digits sits under the same subheading. The last 2 digits are the EU's own CN split.
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Not a binding classification
These pages show the official texts for reference. They are not a binding classification: check the code with your customs broker, or ask your customs authority for Binding Tariff Information (BTI).
Source
Source: EU Combined Nomenclature 2026 (Commission Implementing Regulation (EU) 2025/1926), © European Union, https://eur-lex.europa.eu/. Reformatted by WISEPIM: indent dashes removed and parent lines joined. Only the Official Journal is authentic.