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Code 2933 29 · Heading 2933

Nitrogen-only heterocyclic compounds with a non-fused imidazole ring, including hydrogenated forms, excluding hydantoin and its derivatives

This code covers heterocyclic compounds whose only heteroatoms are nitrogen and whose structure contains a non-fused imidazole ring, including hydrogenated forms. Hydantoin and its derivatives are excluded, as are naphazoline hydrochloride, naphazoline nitrate, phentolamine and tolazoline hydrochloride, which have their own child code.

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See the official tariff text

Official tariff text

Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused imidazole ring, whether or not hydrogenated, in the structure (excl. hydantoin and its derivatives, and products of subheading 3002 10)

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Classification decides the rate here: from 0.0% to 6.5%.

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

  • 29.33.2900

    Other

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

  • 2933 29 10 00

    Naphazoline hydrochloride (INNM) and naphazoline nitrate (INNM); phentolamine (INN); tolazoline hydrochloride (INNM)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2933 29 90 15

    Ethyl 4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylate (CAS RN 144689-93-0)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 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

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2933 29 90 38

    Cyazofamid (ISO) (CAS RN 120116-88-3) with a purity by weight of 94 % or more

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 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

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2933 29 90 60

    1-Cyano-2-methyl-1-[2-(5-methylimidazol-4-ylmethylthio)ethyl]isothiourea (CAS RN 52378-40-2)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2933 29 90 75

    2,2'-Azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride (CAS RN 27776-21-2)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2933 29 90 80

    Imazalil (ISO) (CAS RN 35554-44-0)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.
Show all 9 lines

  • 2933 29 90 90

    Other

    Ordinary duty
    Depends on the product details
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 27 codes at this level
Previous code 2933 21

Hydantoin and its derivatives
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Heterocyclic compounds with nitrogen hetero-atom[s] only, containing …

Next code 2933 31

Pyridine and its salts

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.