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Code 2933 59 · Heading 2933

Nitrogen-only heterocyclic compounds with a pyrimidine or piperazine ring, excluding the specifically listed products and salts

This category covers nitrogen-only heterocyclic compounds whose structure contains a pyrimidine ring, including hydrogenated forms, or a piperazine ring. It excludes the listed barbiturates and other named products, their salts, diazinon, and 1,4-diazabicyclo[2.2.2]octane (triethylenediamine).

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See the official tariff text

Official tariff text

Heterocyclic compounds with nitrogen hetero-atom[s] only, containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure (excl. malonylurea "barbituric acid" and its derivatives, allobarbital "INN", amobarbital "INN", barbital "INN", butalbital "INN", butobarbital "INN", cyclobarbital "INN", methylphenobarbital "INN", pentobarbital "INN", phenobarbital "INN", secbutabarbital "INN", secobarbital "INN", vinylbital "INN", loprazolam "INN", mecloqualone "INN", methaqualone "INN" and zipeprol "INN", and salts thereof)

Full 8-digit codes

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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.

  • 29.33.5909

    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. 3, 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 59 10 00

    Diazinon (ISO)

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

  • 2933 59 20 00

    1,4-Diazabicyclo[2.2.2]octane (triethylenediamine)

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

  • 2933 59 95 10

    6-Amino-1,3-dimethyluracil (CAS RN 6642-31-5)

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

  • 2933 59 95 13

    2-Diethylamino-6-hydroxy-4-methylpyrimidine (CAS RN 42487-72-9)

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

  • 2933 59 95 14

    2-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide (CAS RN 1211443-61-6) with a purity by weight of 97 % or more

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

  • 2933 59 95 16

    Tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate (CAS RN 571188-59-5) 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 59 95 19

    Tert-butyl 4-[(2-chloropyrimidin-5-yl)oxy]butanoate (CAS RN 945771-55-1) 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 59 95 20

    2,4-Diamino-6-chloropyrimidine (CAS RN 156-83-2)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.
Show all 41 lines

  • 2933 59 95 27

    2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]-3-hydroxypropylacetate (CAS RN 88110-89-8)

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

  • 2933 59 95 29

    2-Amino-4-(4-methylpiperazin-1-yl) benzoic acid tert-butyl ester (CAS RN 1034975-35-3) 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 59 95 31

    Sotorasib (INN) (CAS RN 2296729-00-3) with a purity by weight of 99 % or more

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

  • 2933 59 95 32

    5-Chloro-3-nitropyrazolo[1,5-a]pyrimidine (CAS RN 1363380-51-1) 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 59 95 33

    4,6-Dichloro-5-fluoropyrimidine (CAS RN 213265-83-9)

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

  • 2933 59 95 34

    6-chloro-1,3-dimethyluracil (CAS RN 6972-27-6) with a purity by weight of 97 % or more

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

  • 2933 59 95 35

    3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS RN 151266-23-8) 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 59 95 36

    1-(Cyclopropylcarbonyl)piperazine hydrochloride (CAS RN 1021298-67-8) 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 59 95 38

    5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS No 139756-22-2) 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 59 95 40

    Pirimiphos-methyl (ISO) (CAS RN 29232-93-7) with a purity by weight of 90 % or more

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

  • 2933 59 95 41

    2-(4-Phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS RN 2190506-57-9) 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 59 95 44

    1,4,5,6-Tetrahydro-1,2-dimethylpyrimidine (CAS RN 4271-96-9) 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 59 95 45

    1-[3-(Hydroxymethyl)pyridin-2-yl]-4-methyl-2-phenylpiperazine (CAS RN 61337-89-1)

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

  • 2933 59 95 46

    Trilaciclib (CAS RN 1374743-00-6) with a purity by weight of 99 % or more

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

  • 2933 59 95 47

    6-Methyl-2-oxoperhydropyrimidin-4-ylurea (CAS RN 1129-42-6) with a purity 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 59 95 50

    2-(2-Piperazin-1-ylethoxy)ethanol (CAS RN 13349-82-1)

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

  • 2933 59 95 51

    (1R,5S)-8-Benzyl-3,8-diazabicyclo[3.2.1]octane ; 4-(4-hydroxyphenyl)phenol (2:1) (CAS RN 2642049-87-2) 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 59 95 52

    6-Benzyladenine (CAS RN 1214-39-7) with a purity by weight of 97 % or more

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

  • 2933 59 95 54

    2-Chloro-4-methylpyrimidine (CAS RN 13036-57-2) with a purity by weight of 99 % or more

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

  • 2933 59 95 56

    Ruxolitinib phosphate (INNM) (CAS RN 1092939-17-7) with a purity by weight of 99 % or more

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

  • 2933 59 95 58

    Sitagliptin phosphate monohydrate (INNM) (CAS RN 654671-77-9) with a purity by weight of 95 % or more, and containing by weight not more than 1 % of a stabiliser

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

  • 2933 59 95 60

    2,6-Dichloro-4,8-dipiperidinopyrimido[5,4-d]pyrimidine (CAS RN 7139-02-8)

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

  • 2933 59 95 61

    4-Methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS RN 945950-37-8) 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 59 95 63

    1-(3-Chlorophenyl) piperazine (CAS RN 6640-24-0)

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

  • 2933 59 95 64

    Thiopental (INNM) (CAS RN 76-75-5) 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 59 95 65

    1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (CAS RN 140681-55-6)

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

  • 2933 59 95 66

    Piperazin-2-one (CAS RN 5625-67-2) with a purity by weight of 96 % or more

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

  • 2933 59 95 68

    Guanine (CAS RN 73-40-5) with a purity by weight of 99 % or more

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

  • 2933 59 95 70

    N-(4-Ethyl-2,3-dioxopiperazin-1-ylcarbonyl)-D-2-phenylglycine (CAS RN 63422-71-9)

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

  • 2933 59 95 77

    3-(Trifluoromethyl)-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyrazine hydrochloride (1:1) (CAS RN 762240-92-6)

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

  • 2933 59 95 82

    Ametoctradin (ISO) (CAS RN 865318-97-4) 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 59 95 87

    5-Bromo-2,4-dichloropyrimidine (CAS RN 36082-50-5)

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

  • 2933 59 95 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 55

Loprazolam "INN", mecloqualone "INN", methaqualone "INN" and zipeprol…
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Heterocyclic compounds with nitrogen hetero-atom[s] only, containing …

Next code 2933 61

Melamine

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.