Chapter 29 · Organic chemicals · Section 6
HS Code 2923.90
Other
Heading 2923: Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 2923.90
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 2923.90.01 |
Other > Other |
6.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 36% | kg |
Estimate the US duty runs in your browser · no caps
Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 2923.90
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 2923 90 00 | Other | EU duty (TARIC) → |
United Kingdom - commodity codes under 2923.90
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 2923 90 00 00 | Other | UK duty & VAT → |
| 2923 90 00 10 | Tetramethylammonium hydroxide, in the form of an aqueous solution containing 25% (± 0,5%) by weight of tetramethylammonium hydroxide | UK duty & VAT → |
| 2923 90 00 13 | Bis(N,N,N-trimethyladamantan-1-aminium) sulfate (CAS RN 1000777-61-6) with a purity by weight of 95 % or more, whether or not in aqueous solution containing 20 % or more Bis(N,N,N-trimethyladamantan-1-aminium) sulfate (CAS RN 1000777-61-6) | UK duty & VAT → |
| 2923 90 00 30 | Tetrabutylammonium tetrahydroborate (CAS RN 33725-74-5) with a purity by weight of 97 % or more | UK duty & VAT → |
| 2923 90 00 33 | Calcium phosphoryl choline chloride tetrahydrate (CAS RN 72556-74-2) with a purity by weight of 90 % or more | UK duty & VAT → |
| 2923 90 00 50 | Betaine hydrochloride (CAS RN 590-46-5), with a purity by weight of 93 % or more | UK duty & VAT → |
| 2923 90 00 55 | Tetrabutylammonium bromide (CAS RN 1643-19-2) | UK duty & VAT → |
| 2923 90 00 65 | N,N,N-trimethyl-tricyclo[3.3.1.13,7]decan-1-aminium hydroxide (CAS RN 53075-09-5) in form of an aqueous solution with a content of N,N,N-trimethyl-tricyclo[3.3.1.13,7]decan-1-aminium hydroxide by weight of 17,5 % or more but not more than 27,5 % | UK duty & VAT → |
| 2923 90 00 75 | Tetraethylammonium hydroxide, in the form of an aqueous solution containing: <br><br><br>- 35 % (± 0,5 %) by weight of tetraethylammonium hydroxide, <br> <br><br><br>- not more than 1 000 mg/kg of chloride, <br> <br><br><br>- not more than 2 mg/kg of iron and <br> <br><br><br>- not more than 10 mg/kg of potassium | UK duty & VAT → |
| 2923 90 00 80 | Diallyldimethylammonium chloride, in the form of an aqueous solution containing by weight 63 % or more but not more than 67 % of diallyldimethylammonium chloride, (CAS RN 7398-69-8) | UK duty & VAT → |
| 2923 90 00 85 | N,N,N-Trimethylanilinium chloride (CAS RN 138-24-9) | UK duty & VAT → |
| 2923 90 00 87 | 3-Chloro-2-hydroxypropyl)trimethylammonium chloride (CAS RN 3327-22-8), in the form of an aqueous solution containing by weight 65 % or more but not more than 71 % 3-chloro-2-hydroxypropyl)trimethylammonium chloride | UK duty & VAT → |
| 2923 90 00 88 | Aqueous solution containing by weight 78 % or more but not more than 82 % of [2-(acryloyloxy)ethyl]trimethylammonium chloride (CAS RN 44992-01-0) | UK duty & VAT → |
| 2923 90 00 90 | Other | UK duty & VAT → |
Other subheadings in 2923
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.