Chapter 29 · Organic chemicals · Section 6

HS Code 2933.29

Other

Heading 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only

US duty (general)
Free - 6.5%
US HTS lines
8
EU CN codes
3
UK commodity codes
11
Unit
kg

US HTS + UK Tariff v4.0.1633 · updated 2026-10-21 · sources

Rates on this page are the official published schedule rates, shown for information. This is not a customs ruling: preference programs, Section 232/301 surcharges and per-shipment fees can change what you actually pay.

United States - HTS lines under 2933.29

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 codeDescriptionGeneralSpecialOtherUnit
2933.29.05 Other > Aromatic or modified aromatic >
1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea
Free - 15.4¢/kg + 52% kg
2933.29.10 Other > Aromatic or modified aromatic >
2-Phenylimidazole
5.8% Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 15.4¢/kg + 39.5% kg
2933.29.20 Aromatic or modified aromatic > Other >
Drugs
6% Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) 15.4¢/kg + 51% kg
2933.29.35 Other > Other >
Products described in additional U.S. note 3 to section VI
6.5% Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) 15.4¢/kg + 52% kg
2933.29.43 Other > Other >
Other
6.5% Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) 15.4¢/kg + 52% kg
2933.29.45 Other > Other >
Drugs
3.7% Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) 25% kg
2933.29.60 Other > Other >
Imidazole
Free - 30.5% kg
2933.29.90 Other > Other >
Other
6.5% Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) 30.5% 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 2933.29

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 codeDescription
2933 29 10 Naphazoline hydrochloride (INNM) and naphazoline nitrate (INNM); phentolamine (INN); tolazoline hydrochloride (INNM) EU duty (TARIC) →
2933 29 90 Other EU duty (TARIC) →
2933 29 00 Other EU duty (TARIC) →

United Kingdom - commodity codes under 2933.29

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 codeDescription
2933 29 00 00 Other UK duty & VAT →
2933 29 10 00 Naphazoline hydrochloride (INNM) and naphazoline nitrate (INNM); phentolamine (INN); tolazoline hydrochloride (INNM) UK duty & VAT →
2933 29 90 00 Other UK duty & VAT →
2933 29 90 15 Ethyl 4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylate (CAS RN 144689-93-0) UK duty & VAT →
2933 29 90 20 tert-Butyl (2S)-2-(5-bromo-1H-imidazol-2-yl)pyrrolidine-1-carboxylate (CAS RN 1007882-59-8) with a purity by weight of 98 % or more UK duty & VAT →
2933 29 90 38 Cyazofamid (ISO) (CAS RN 120116-88-3) with a purity by weight of 94 % or more UK duty & VAT →
2933 29 90 43 2-Octyl-4,5-dihydro-1H-imidazole (CAS RN 10443-60-4) with a purity by weight of 95 % or more UK duty & VAT →
2933 29 90 60 1-Cyano-2-methyl-1-[2-(5-methylimidazol-4-ylmethylthio)ethyl]isothiourea (CAS RN 52378-40-2) UK duty & VAT →
2933 29 90 75 2,2'-Azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride (CAS RN 27776-21-2) UK duty & VAT →
2933 29 90 80 Imazalil (ISO) (CAS RN 35554-44-0) UK duty & VAT →
2933 29 90 90 Other UK duty & VAT →
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).

Nearby codes in heading 2933

The subheadings immediately before and after 2933.29 in chapter 29.

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.

Frequently asked questions

Common questions about HS code 2933.29.

What is HS code 2933.29?

HS code 2933.29 covers: Other. It belongs to chapter 29 (Organic chemicals) of the Harmonized System.

What is the US import duty for HS code 2933.29?

The US general (normal trade relations) rates under this subheading range: Free - 6.5%. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.

What is the UK commodity code for 2933.29?

The UK extends 2933.29 to 11 declarable 10-digit commodity codes, starting with 2933290000. The full code goes on the UK customs declaration.