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Customs code · HS subheading 2933 39

Final code reached

Other nitrogen-only heterocyclic compounds with a non-fused pyridine ring

Including hydrogenated rings

This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.

This code covers nitrogen-only heterocyclic compounds whose structure includes a non-fused pyridine ring, including hydrogenated pyridine rings. It applies when the product is not one of the specifically named products in the other codes of this group.

See the official tariff text

Official tariff text

Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused pyridine ring, whether or not hydrogenated, in the structure, n.e.s.

You are seeing what applies when you export from the EU. Switch above if you import.

You are seeing what applies when you import into the EU. Switch above if you export.

Your answer for export

The full EU export code is 2933 39 99.

You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.

8 digits, ready

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

  • Their lines4 Norwegian lines

29.33.3903 3-Quinuclidinone

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines71 British lines

2933 39 99 01 N-phenylpiperidin-4-amine (4-AP) (CAS RN 23056-29-3)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

6.5% or 15.0%

Depends on a question

  • Their lines15 US lines
  • Entry dateSept. 17, 2026

2933.39.08.00 Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 4 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

  • 29.33.3903

    3-Quinuclidinone

    Ordinary duty
    Duty free

  • 29.33.3904

    1-[N,N-Dialkyl (≤C10) -N-(hydroxyl, cyano, acetoxy)alkyl (≤C10)) ammonio]-n-(N-3-dimethylcarbamoxy-α-picolyl)-N,N-dialkyl (≤C10) ammonio]decane dibromide (n=1-8)

    Ordinary duty
    Duty free

  • 29.33.3905

    1,n-Bis(N-(3-dimethylcarbamoxy-a-picolyl)-N,N-dialkyl (≤C10) ammonio]-alkane-(2,(n-1)-dione) dibromide (n=2-12)

    Ordinary duty
    Duty free

  • 29.33.3908

    Other

    Ordinary duty
    Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

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

See the 71 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

  • 2933 39 99 01

    N-phenylpiperidin-4-amine (4-AP) (CAS RN 23056-29-3)

    Ordinary duty
    Duty free

  • 2933 39 99 02

    Tert-butyl 4-anilinopiperidine-1-carboxylate (1-boc-4-AP) (CAS RN 125541-22-2)

    Ordinary duty
    Duty free

  • 2933 39 99 03

    N-phenyl-N-(piperidin-4-yl)propanamide (norfentanyl) (CAS RN 1609-66-1)

    Ordinary duty
    Duty free

  • 2933 39 99 04

    Methyl 4-aminopicolinate (CAS RN 71469-93-7) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 05

    2,6-Bis-[1-(2-tert-butylphenylimino)-ethyl]pyridine (CAS RN 204203-17-8) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 06

    Tert-butyl (3S)-3-hydroxypiperidine-1-carboxylate (CAS RN 143900-44-1) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 07

    5-Bromo-2-methoxypyridine (CAS RN 13472-85-0) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 08

    Fluazinam (ISO) (CAS RN 79622-59-6) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free
Show all 71 lines

  • 2933 39 99 09

    2-(2-Pyridyl)ethanol (CAS RN 103-74-2) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 10

    2-Aminopyridin-4-ol hydrochloride (CAS RN 1187932-09-7)

    Ordinary duty
    Duty free

  • 2933 39 99 11

    2-(Chloromethyl)-4-(3-methoxypropoxy)-3-methylpyridine hydrochloride(CAS RN 153259-31-5)

    Ordinary duty
    Duty free

  • 2933 39 99 12

    2,3-Dichloropyridine (CAS RN 2402-77-9)

    Ordinary duty
    Duty free

  • 2933 39 99 13

    Imazamox (ISO) (CAS RN 114311-32-9) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 15

    (S)-6-Bromo-2-(4-(3-(1,3-dioxoisoindolin-2-yl)propyl)-2,2-dimethylpyrrolidin-1-yl)nicotinamide (CAS RN 2606972-45-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 16

    Tert-butyl (3R)-3-aminopiperidine-1-carboxylate (CAS RN 188111-79-7) with a purity by weight of 96 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 17

    2,4-Dichloro-3-nitropyridine (CAS RN 5975-12-2) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 18

    Perfluorophenyl 6-fluoropyridine-2-sulfonate (CAS RN 2608048-81-1) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 19

    5-Chloro-1-(4-piperidyl)-1H-benzimidazol-2(3H)-one (CAS RN 53786-28-0) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 22

    N-(5-bromo-3-methylpyridin-2-yl)-N-methylbenzamide (CAS RN 446299-80-5) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 24

    2-Chloromethyl-4-methoxy-3,5-dimethylpyridine hydrochloride (CAS RN 86604-75-3)

    Ordinary duty
    Duty free

  • 2933 39 99 27

    Pyridine-2,6-dicarboxylic acid (CAS RN 499-83-2)

    Ordinary duty
    Duty free

  • 2933 39 99 28

    Ethyl-3-[(3-amino-4-methylamino-benzoyl)-pyridin-2-yl-amino]-propionate (CAS RN 212322-56-0)

    Ordinary duty
    Duty free

  • 2933 39 99 31

    2-(Chloromethyl)-3-methyl-4-(2,2,2-trifluoroethoxy)pyridine hydrochloride(CAS RN 127337-60-4)

    Ordinary duty
    Duty free

  • 2933 39 99 32

    2-(Chloromethyl)-3,4-dimethoxypyridine hydrochloride (CAS RN 72830-09-2)

    Ordinary duty
    Duty free

  • 2933 39 99 33

    5-(3-chlorophenyl)-3-methoxypyridine-2-carbonitrile (CAS RN 1415226-39-9)

    Ordinary duty
    Duty free

  • 2933 39 99 34

    Pyridin-3-ol (CAS RN 109-00-2) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 35

    Aminopyralid (ISO) (CAS RN 150114-71-9)

    Ordinary duty
    Duty free

  • 2933 39 99 36

    1-[2-[5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]piperidine-4-carbothioamide (CAS RN 1003319-95-6)

    Ordinary duty
    Duty free

  • 2933 39 99 37

    Aqueous solution of pyridine-2-thiol-1-oxide, sodium salt (CAS RN 3811-73-2)

    Ordinary duty
    Duty free

  • 2933 39 99 38

    (2-chloropyridin-3-yl) methanol (CAS RN 42330-59-6)

    Ordinary duty
    Duty free

  • 2933 39 99 40

    2-Hydroxypyridine-N-oxide (CAS RN 13161-30-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 42

    Glasdegib maleate (INN) (CAS RN 2030410-25-2) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 44

    Fluroxypyr-meptyl (CAS RN 81406-37-3) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 45

    2,4-Dichloropyridine-3-carboxaldehyde (CAS RN 134031-24-6) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 46

    Fluopicolide (ISO) (CAS RN 239110-15-7) with a content by weight of 97% or more

    Ordinary duty
    Duty free

  • 2933 39 99 47

    (-)-trans-4-(4'-Fluorophenyl)-3-hydroxymethyl-N-methylpiperidine (CAS RN 105812-81-5)

    Ordinary duty
    Duty free

  • 2933 39 99 48

    Flonicamid (ISO) (CAS RN 158062-67-0)

    Ordinary duty
    Duty free

  • 2933 39 99 49

    2-Phenyl-2-(2-pyridyl)acetamide (CAS RN 7251-52-7) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 50

    N,4-Dimethyl-1-(phenylmethyl)- 3-piperidinamine hydrochloride (1:2) (CAS RN 1228879-37-5) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 51

    2-Amino-3-bromo-5-nitropyridine (CAS RN 15862-31-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 53

    5-Methyl-2-pyridylamine (CAS RN 1603-41-4) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 54

    2,5-Dichloro-4,6-dimethylpyridine-3-carbonitrile (CAS RN 91591-63-8) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 55

    Pyriproxyfen (ISO) (CAS RN 95737-68-1) of a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 56

    2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl]methyl]sulfanyl]1H-benzimidazole (CAS RN 103577-40-8) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 57

    Tert-butyl 3-(6-amino-3-methylpyridin-2-yl)benzoate (CAS RN 1083057-14-0)

    Ordinary duty
    Duty free

  • 2933 39 99 58

    Tert-butyl N-[5-(trifluoromethyl)pyridin-3-yl]carbamate (CAS RN 1187055-61-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 60

    2-Fluoro-6-(trifluoromethyl)pyridine (CAS RN 94239-04-0)

    Ordinary duty
    Duty free

  • 2933 39 99 62

    Ethyl 2,6-Dichloronicotinate (CAS RN 58584-86-4)

    Ordinary duty
    Duty free

  • 2933 39 99 63

    1-Methyl-4-piperidone (CAS RN 1445-73-4) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 65

    Acetamiprid (ISO) (CAS RN 135410-20-7)

    Ordinary duty
    Duty free

  • 2933 39 99 66

    (2S,4S)-4-Ethoxy-2-[4-(methoxycarbonyl)phenyl]piperidin-1-ium(2Z)-3-carboxyprop-2-enoate (CAS RN 2408761-21-5) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 68

    1-(3-Chloropyridin-2-yl)-3-[[5-(trifluoromethyl)-2H-tetrazol-2-yl]methyl]-1H-pyrazole-5-carboxylic acid (CAS RN 1352319-02-8) with a purity by weight of 85 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 70

    2,3-Dichloro-5-trifluoromethylpyridine, (CAS RN 69045-84-7)

    Ordinary duty
    Duty free

  • 2933 39 99 72

    N-[(1S,5R)-8-Benzyl-8-azabicyclo[3.2.1]octane-3-yl]-2-methylpropanamide (CAS RN 376348-67-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 73

    6-Chloro-4-(4-fluoro-2-methylphenyl)pyridin-3-amine hydrochloride

    Ordinary duty
    Duty free

  • 2933 39 99 75

    Clodinafop-propargyl (ISO) (CAS RN 105512-06-9) with a purity by weight of 90 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 76

    Apalutamide (INN) (CAS RN 956104-40-8)

    Ordinary duty
    Duty free

  • 2933 39 99 78

    Niraparib tosylate monohydrate (INNM) (CAS RN 1613220-15-7)

    Ordinary duty
    Duty free

  • 2933 39 99 80

    Tert-Butyl (3R)-3-(4-amino-2-oxo-2,3-dihydro-1H-imidazo[4, 5-c]pyridin-1-yl)piperidine-1-carboxylate (CAS RN 1971921-33-1) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 81

    4-Hydroxy-3-pyridinesulphonic acid (CAS RN 51498-37-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 82

    Picloram (ISO) (CAS RN 1918-02-1) containing by weight not more than 15 % of water and with a dry weight purity of 92 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 84

    Diethyl(3-pyridyl)borane (CAS RN 89878-14-8) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 85

    2-Chloro-5-chloromethylpyridine (CAS RN 70258-18-3)

    Ordinary duty
    Duty free

  • 2933 39 99 88

    (1R,2S,4R)-2-Benzhydrylquinuclidin-3-one (2R,3R)-2,3-dihydroxysuccinate (CAS RN 683206-54-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 89

    1-Benzyl-4-phenylpiperidine-4-carbonitrile monohydrochloride (CAS RN 71258-18-9) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 91

    Piperidin-4-one CAS No 41661-47-6

    Ordinary duty
    Duty free

  • 2933 39 99 92

    Tert-butyl 4-oxopiperidine-1-carboxylate CAS No 79099-07-3

    Ordinary duty
    Duty free

  • 2933 39 99 93

    Boscalid (ISO) (CAS RN 188425-85-6) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 94

    Cyantraniliprole (ISO) (CAS RN 736994-63-1) with a purity by weight of 90 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 95

    Fluopyram (ISO) (CAS RN 658066-35-4) with a purity by weight of 96,5 % or more

    Ordinary duty
    Duty free

  • 2933 39 99 99

    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 v4.0.1599, last checked Sept. 13, 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).

See the 15 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

  • 2933.39.08.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, 1-(3-Sulfo propyl) pyridinium hydroxide;N,N'-Bis (2,2,6,6-tetra methyl-4-piperidinyl)-1,6- hexane diamine; 3,5-Dimethyl-2-hydroxy methyl-4-methoxy- pyridine (pyrmethyl alcohol); Dipenta methylene thiuram tetra sulfide; 2H-Indol-2-one,1,3-dihydro-1-phenyl-3-(4- pyridinyl methylene); 4-Picolyl chloride hydro chloride; and Piperidino ethyl chloride hydro chloride

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.10.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Collidines, lutidines and picolines

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.20.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, p-Chloro-2-benzylpyridine; 4-Chloro-1-methylpiperidine hydrochloride; 1,4-Dimethyl-6-hydroxy-3-cyanopyrid-2-one; Di-(2,2,6,6-tetramethyl-4-hydroxy- piperidine)sebacate; 2-Methyl-5-ethylpyridine; 4-Phenylpropylpyridine; α-Phenylpyridylacetic acid, methyl ester; Picolinic acid; 2-Pyridinecarboxaldehyde; and 2,5-Pyridinedicarboxylic acid

    General rate
    5.8%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.21.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Pesticides, Fungicides

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.23.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Pesticides, Herbicides, o-Paraquat dichloride

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.25.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Pesticides, Herbicides, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.27.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Pesticides, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.31.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Drugs, Antidepressants, tranquilizers and other psychotherapeutic agents

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99
Show all 15 lines

  • 2933.39.41.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Drugs, Other

    General rate
    6.5%
    From the EU
    6.5% or 15.0% Depends on a question US headings applied: 9903.04.62 Section 232 pharmaceuticals, Proclamation 11020 of 2 April 2026 (91 FR 18183) clauses (3)(c), (4), (5) and (7), heading 9903.04.62 of subchapter III of chapter 99 with U.S. note 40(c) and (f): the rate for patented pharmaceuticals and associated ingredients shall be 15 percent for products of the European Union, the sum of the column 1 duty rate and the additional duty being that rate; generic pharmaceuticals are not subject to tariffs pursuant to section 232 at this time; effective 31 July 2026 for the companies listed in Annex III and 29 September 2026 for other companies

  • 2933.39.61.10

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Products described in additional U.S. note 3 to section VI, 3-Quinuclidinyl benzilate

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.61.20

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Products described in additional U.S. note 3 to section VI, 1-[N,N-Dialkyl (≤C10)-N-(n-(hydroxyl, cyano, acetoxy)alkyl (≤C10)) ammonio]-n-n-[N-(3- dimethylcarbamoxy-α-picolinyl)-N,N-dialkyl (≤C10) ammonio]decane dibromide (n=1-8)

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.61.30

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Products described in additional U.S. note 3 to section VI, 1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)- N,N-dialkyl (≤ C10) ammonio]-alkane-(2,(n-1)- dione) dibromide (n=2-12)

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.61.40

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Products described in additional U.S. note 3 to section VI, Other, N-phenyl-4-piperidinamine (4-AP), tert-butyl 4-(phenylamino)piperidine-1-carboxylate (tert-butyl 4-anilinopiperidine-1-carboxylate, 1-boc-4-AP), norfentanyl (N-phenyl-N-(4-piperidyl)propionamide), piperidin-4-one (4-piperidone) and tert-butyl 4-oxopiperidine-1-carboxylate (1-boc-4-piperidone); salts thereof

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.61.92

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other, Products described in additional U.S. note 3 to section VI, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2933.39.92.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Before you use the code

Check the facts that sit outside the code

The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.

Classify your own product, free Look up the current rates and rules
  1. The product and its form Check that your product really matches this description, including what it is made of and the form it arrives in.
  2. Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
  3. Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.

On an EU import declaration

Pick the 10-digit line that matches the goods.

71 import lines

When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2933 39 99 the EU tariff has 71 lines, each with its own wording.

You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.

  1. Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.

A suspension is a lower rate the EU grants for specific products; whether your goods qualify depends on the line's wording and conditions.

Exports from the EU and Intrastat normally use the 8-digit code as it is.

EU tariff data of Sept. 13, 2026.

This is the catch-all under 2933 39: it covers what the sibling codes below do not.

This is the remainder for the parent group: products with the stated non-fused pyridine-ring structure that are not covered by a sibling code naming a specific product or product class.

Rates, origin and documents

Read the signals first. Open only the ones you want to check.

Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.

Data of Sept. 1, 2026

Lower duty for goods from some countries

Possible

Preferential rates exist for goods originating in:

  • San Marino
  • Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
  • Botswana, Eswatini, Lesotho, Mozambique and Namibia
  • Ivory Coast
  • Cameroon
  • Fiji
  • United Kingdom
  • Georgia
  • +46 origins

These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); GSP+ (incentive arrangement for sustainable development and good governance).

Whether you can use one depends on the origin rules for the goods and on the documentation you can show.

Check this code in the official EU TARIC database

A limited quantity at a lower rate

Check

A tariff quota is recorded for this code. This does not say whether any of the quota is still available. It covers goods originating in:

  • any country except Belarus and Russian Federation

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

  • Ukraine
  • Belarus
  • Russian Federation
  • North Korea (Democratic People’s Republic of Korea)
  • Iran, Islamic Republic of
  • any country

The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.

Proof of origin 2 conditions

If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.

Show the EU's own wording for these conditions
  • Movement certificate EUR.1
  • Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document

Sanctions and restricted regions 15 conditions

Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.

Show the EU's own wording for these conditions
  • Goods not originating from or destined to Crimea or Sevastopol (Articles 2 and 2b.1 of Council Regulation (EU) No 692/2014)
  • Goods not originating from or not destined for the non-government controlled areas of Ukraine in the oblasts of Donetsk, Kherson, Luhansk and Zaporizhzhia
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 8f of Regulation (EU) No 765/2006)
  • Import authorisation by virtue of article 1ra paragraph 10 of Council Regulation (EU) 765/2006
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 4)
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 3)
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 12e of Regulation (EU) No 833/2014)
  • Import authorisation by virtue of article 3i paragraph 3c of Council Regulation (EU) 833/2014
  • The prohibitions defined in article 3i.1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 3i.3aa)
  • Import authorisation by virtue of article 12b.2 of Council Regulation (EU) 833/2014
  • Goods other than those described in the MG footnotes linked to the measure (Annex II, Part VI of Reg. (EU) 2017/1509)
  • Goods other than those described in the MG footnotes linked to the measure (Missile Technology Control Regime list - Annex III of Reg. (EU) 267/2012)
  • The prohibitions defined in article 1aa paragraph 1 of Council Regulation (EC) No 765/2006 do not apply (see contractual exemptions in article 1aa paragraph 2b)
  • The prohibitions defined in article 1aa.1 of Council Regulation (EC) No 765/2006 do not apply (see exemptions in article 1aa.2a)
  • The prohibitions defined in article 4 paragraph 1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 4 paragraph 2)

Product controls and permits 4 conditions

Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.

Show the EU's own wording for these conditions
  • Import authorisation (precursors) issued by the competent authorities of the Member State where the importer is established
  • Substance/mixture not subjected to the provisions of Regulation (EC) No 1907/2006 (Annex XVII)
  • Exemption from REACH restrictions by virtue of Article 67(1) and 67(2) of Regulation (EC) No 1907/2006
  • Compliance with the REACH restrictions defined in Column 2 of Annex XVII of Regulation (EC) No 1907/2006

Statements that the goods are outside a rule's scope 2 conditions

Some conditions are statements that a rule does not cover the goods, for example that the product is not on a controlled list.

Show the EU's own wording for these conditions
  • Goods other than those described in the footnotes linked to the measure
  • Goods other than those described in the Common Military List of the European Union
Check this code in the official EU TARIC database

EU tariff measure data of Sept. 1, 2026.

One last classification check

Check the path and the nearest alternatives.

Use this view if you are still unsure the code describes the product precisely.

How we got to this code

  1. VI
  2. 29
  3. 2933
  4. 2933 39
  5. 2933 39 99
Show the steps

Compare with the codes next to it.

Compare the sibling codes at this level before you settle on this one.

Worth comparing

Codes that sit close to this one, for when the material itself could be different.

Browse chapter 29

Similar products elsewhere in the tariff

Often confused with

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, 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.