tariffs.help
Log in Create free account

Code 2933 99 · Heading 2933

Other nitrogen-only heterocyclic compounds, excluding specified ring types, lactams and listed products

This code covers heterocyclic compounds whose heteroatoms are only nitrogen, except compounds with the specified pyrazole, imidazole, pyridine, quinoline or isoquinoline, pyrimidine, triazine or piperazine structures, as well as lactams and the specifically listed products and their salts. It includes the products named under the more detailed tariff lines within this code, such as indole and the specified benzotriazole phenol.

For example

  • Indole
  • 3-methylindole (skatole)
  • Imipramine hydrochloride
  • 2,4-di-tert-butyl-6-[5-chlorobenzotriazol-2-yl]phenol
See the official tariff text

Official tariff text

Heterocyclic compounds with nitrogen hetero-atom[s] only (excl. those containing an unfused pyrazole, imidazole, pyridine or triazine ring, whether or not hydrogenated, a quinoline or isoquinoline ring-system, not further fused, whether or not hydrogenated, a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, and lactams, alprazolam "INN", camazepam "INN", chlordiazepoxide "INN", clonazepam "INN", clorazepate, delorazepam "INN", diazepam "INN", estazolam "INN", ethyl loflazepate "INN", fludiazepam "INN", flunitrazepam "INN", flurazepam "INN", halazepam "INN", lorazepam "INN", lormetazepam "INN", mazindol "INN", medazepam "INN", midazolam "INN", nimetazepam "INN", nitrazepam "INN", nordazepam "INN", oxazepam "INN", pinazepam "INN", prazepam "INN", pyrovalerone "INN", temazepam "INN", tetrazepam "INN" and triazolam "INN", salts thereof and azinphos-methyl "ISO")

How we got to this code

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

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 0.0–6.5%

3 codes below this one

Compare the sibling codes

See all 27 codes at this level

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

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 lines1 Norwegian line

29.33.9900 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines71 British lines

2933 99 20 00 Indole, 3-methylindole (skatole), 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepine (azapetine)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

6.5% or 15.0%

Depends on a question

  • Their lines34 US lines
  • Entry dateSept. 17, 2026

2933.99.01.00 Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 1 Norwegian line

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.

  • 29.33.9900

    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 99 20 00

    Indole, 3-methylindole (skatole), 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepine (azapetine), phenindamine (INN) and their salts; imipramine hydrochloride (INNM)

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

  • 2933 99 50 00

    2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol

    Ordinary duty
    Duty free

  • 2933 99 80 01

    3-Cyanoindole (CAS RN 5457-28-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 02

    (S)-1-Benzyl-3-pyrrolidinol (CAS RN 101385-90-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 03

    Tert-butyl 4-formyl-5-methoxy-7-methyl-1H-indole-1-carboxylate (CAS RN 1481631-51-9) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 04

    (S)-2,5-Dihydro-pyrrole-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester (CAS RN 74844-93-2) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 05

    1,4,7,10-Tetraazacyclododecane (CAS RN 294-90-6) with a purity by weight of 96 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 07

    4-(2-Oxo-2,3-dihydro-1H-benzimidazol-1-yl)butanoic acid (CAS RN 3273-68-5) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free
Show all 71 lines

  • 2933 99 80 08

    Prothioconazole (ISO) (CAS RN 178928-70-6) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 09

    5,7-Difluoro-2-(4-fluorophenyl)-1H-indole (CAS RN 901188-04-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 10

    (R)-2-(2,5-difluorophenyl)pyrrolidine hydrochloride (CAS RN 1218935-60-4) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 13

    5-Difluormethoxy-2-mercapto-1-H-benzimidazole (CAS RN 97963-62-7)

    Ordinary duty
    Duty free

  • 2933 99 80 16

    Pyridate (ISO)(CAS RN 55512-33-9) with a purity by weight of 90 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 18

    2-(2-Ethoxyphenyl)-5-methyl-7-propylimidazolo[5,1-f][1,2,4]-triazin-4(3H)-one (CAS RN 224789-21-3) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 21

    1-(Bis(dimethylamino)methylene)-1H-[1,2,3]triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate(V) (CAS RN 148893-10-1)

    Ordinary duty
    Duty free

  • 2933 99 80 22

    Dibenz[b,f]azepine-5-carbonyl chloride (CAS RN 33948-22-0) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 23

    Tebuconazole (ISO) (CAS RN 107534-96-3) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 24

    1,3-Dihydro-5,6-diamino-2H-benzimidazol-2-one (CAS RN 55621-49-3)

    Ordinary duty
    Duty free

  • 2933 99 80 25

    6-(4-Benzylamino-3-nitrophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one (CAS RN 77469-62-6) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 26

    Benzotriazole-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (CAS RN 128625-52-5) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 27

    5,6-Dimethylbenzimidazole (CAS RN 582-60-5)

    Ordinary duty
    Duty free

  • 2933 99 80 28

    7-(2-Methyl-4-nitrophenoxy)-[1,2,4]triazolo[1,5-a]pyridine (CAS RN 937263-44-0) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 29

    1,1-Dimethylethyl (4S)-3-amino-2-(4-fluoro-3,5-dimethylphenyl)-2,4,6,7-tetrahydro-4-methyl-5H-pyrazolo[4,3-c]pyridine-5-carboxylate (CAS RN 2212021-59-3) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 30

    Quizalofop-P-ethyl (ISO) (CAS RN 100646-51-3)

    Ordinary duty
    Duty free

  • 2933 99 80 31

    2-(2H-Benzotriazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol (CAS RN 73936-91-1) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 32

    1H-1,2,3-Triazole (CAS RN 288-36-8) or 2H-1,2,3-triazole (CAS RN 288-35-7) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 33

    Penconazole (ISO) (CAS RN 66246-88-6)

    Ordinary duty
    Duty free

  • 2933 99 80 34

    2,4-Dihydro-5-methoxy-4-methyl-3H-1,2,4-triazol-3-on (CAS RN 135302-13-5)

    Ordinary duty
    Duty free

  • 2933 99 80 35

    2-[6-Methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]acetic acid (CAS RN 189005-44-5) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 37

    8-Chloro-5,10-dihydro-11H-dibenzo [b,e] [1,4]diazepin-11-one (CAS RN 50892-62-1)

    Ordinary duty
    Duty free

  • 2933 99 80 38

    (4aS,7aS)-Octahydro-1H-pyrrolo[3,4-b]pyridine (CAS RN 151213-40-0)

    Ordinary duty
    Duty free

  • 2933 99 80 40

    trans-4-Hydroxy-L-proline (CAS RN 51-35-4)

    Ordinary duty
    Duty free

  • 2933 99 80 41

    5-[4'-(bromomethyl)biphenyl-2-yl]-1-trityl-1H-tetrazole (CAS RN 124750-51-2)

    Ordinary duty
    Duty free

  • 2933 99 80 42

    (S)-2,2,4-Trimethylpyrrolidine hydrochloride (CAS RN 1897428-40-8)

    Ordinary duty
    Duty free

  • 2933 99 80 43

    4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline (CAS RN 937263-71-3) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 44

    (2R,3R)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol methanesulfonate (CAS RN 1175536-50-1) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 46

    (S)-indoline-2-carboxylic acid (CAS RN 79815-20-6)

    Ordinary duty
    Duty free

  • 2933 99 80 48

    5-Amino-6-methyl-2-benzimidazolone (CAS RN 67014-36-2)

    Ordinary duty
    Duty free

  • 2933 99 80 49

    Tert-butyl (2S)-2-carbamoylpyrrolidine-1-carboxylate (CAS RN 35150-07-3) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 50

    Tert-butyl (3R)-3-aminopyrrolidine-1-carboxylate (CAS RN 147081-49-0) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 51

    (1R,5R)-Ethyl 3-benzyl-3-azabicyclo[3.1.0]hexane-1-carboxylate hydrochloride (CAS RN 2914217-81-3) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 52

    (S)-2-Methylpyrrolidine-2-carboxylic acid hydrochloride (CAS RN 1508261-86-6) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 55

    Pyridaben (ISO) (CAS RN 96489-71-3)

    Ordinary duty
    Duty free

  • 2933 99 80 56

    Methyl 3,5-diamino-6-chloropyrazine-2-carboxylate (CAS RN 1458-01-1)

    Ordinary duty
    Duty free

  • 2933 99 80 57

    2-(5-Methoxyindol-3-yl)ethylamine (CAS RN 608-07-1)

    Ordinary duty
    Duty free

  • 2933 99 80 60

    2-[(6,11-Dihydro-5H-dibenz[b,e]azepin-6-yl)-methyl]-1H-isoindole-1,3(2H)-dione (CAS RN 143878-20-0) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 61

    (1R,5S)-8-Benzyl-8-azabicyclo(3.2.1)octan-3-one hydrochloride (CAS RN 83393-23-1)

    Ordinary duty
    Duty free

  • 2933 99 80 62

    6-O-tert-butyl 4a-O-methyl (4a)-1-(4-fluorophenyl)-4,5,7,8-tetrahydropyrazolo[3,4-g]isoquinoline-4a,6-dicarboxylate (CAS RN 864972-21-4) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 63

    L-Prolinamide (CAS RN 7531-52-4)

    Ordinary duty
    Duty free

  • 2933 99 80 64

    (1R,2S,5S)-3-[(S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylic acid (CAS RN 2755812-45-2) with a purity by weight of 95 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 65

    2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (CAS RN 70321-86-7) with a purity by weight of 99 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 67

    Candesartan ethyl ester (INNM), (CAS RN 139481-58-6)

    Ordinary duty
    Duty free

  • 2933 99 80 68

    5-((1S,2S)-2-((2R,6S,9S,11R,12R,14aS,15S,16S,20R,23S,25aR)-9-amino-20-((R)-3-amino-1-hydroxy-3-oxopropyl)-2,11,12,15-tetrahydroxy-6-((R)-1-hydroxyethyl)-16-methyl-5,8,14,19,22,25-hexaoxotetracosahydro-1H-dipyrrolo[2,1-c:2',1'-l][1,4,7,10,13,16]hexaazacyclohenicosin-23-yl)-1,2-dihydroxyethyl)-2-hydroxyphenyl hydrogen sulphate (CAS RN 168110-44-9)

    Ordinary duty
    Duty free

  • 2933 99 80 70

    5-(Bis-(2-hydroxyethyl)-amino)-1-methyl-1H-benzimidazole-2-butanoic acid ethyl ester (CAS RN 3543-74-6) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 71

    10-Methoxyiminostilbene (CAS RN 4698-11-7)

    Ordinary duty
    Duty free

  • 2933 99 80 72

    1,4,7-Trimethyl-1,4,7-Triazacyclononane (CAS RN 96556-05-7)

    Ordinary duty
    Duty free

  • 2933 99 80 73

    5-(acetoacetylamino)benzimidazolone (CAS RN 26576-46-5)

    Ordinary duty
    Duty free

  • 2933 99 80 74

    N,N-Dimethyl-N-octadecyl-1-octadecanaminium (SP-4-2)-[29H,31H-phthalocyanine-2-sulfonato-N29,N30,N31,N32]cuprate (CAS RN 70750-63-9) with a purity by weight of 90 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 75

    1-[Bis(dimethylamino)methylene]-1H-benzotriazolium hexafluorophosphate(1-) 3-oxide (CAS RN 94790-37-1)​

    Ordinary duty
    Duty free

  • 2933 99 80 76

    2-Methylindoline (CAS RN 6872-06-6) with a purity by weight of 98 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 78

    3-Amino-3-azabicyclo (3.3.0) octane hydrochloride (CAS RN 58108-05-7)

    Ordinary duty
    Duty free

  • 2933 99 80 79

    2-(2H-benzotriazol- 2-yl)-4,6-di-tert-pentylphenol (UV-328) – ( CAS No 25973-55-1)

    Ordinary duty
    Duty free

  • 2933 99 80 80

    Pyrrole-2-carboxaldehyde (CAS RN 1003-29-8) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 81

    1,2,3-Benzotriazole (CAS RN 95-14-7)

    Ordinary duty
    Duty free

  • 2933 99 80 82

    Tolytriazole (CAS RN 29385-43-1)

    Ordinary duty
    Duty free

  • 2933 99 80 83

    1-(3-Chloropropyl)-1,3-dihydro-2H-benzimidazol-2-one (CAS RN 62780-89-6) with a purity by weight of 97 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 84

    Allyl (2S,4S)-4-benzoylsulfanyl-2-(dimethylcarbamoyl)pyrrolidine-1-carboxylate (CAS RN 141818-73-7) with a purity by weight of 96 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 85

    2-benzotriazol-2-yl-4,6-di-tert-butylphenol (UV-320) (CAS RN 3846-71-7)

    Ordinary duty
    Duty free

  • 2933 99 80 86

    2-(2H-benzotriazol-2-yl)-4-(tert-butyl)-6- (sec-butyl)phenol (UV-350) (CAS RN 36437-37-3)

    Ordinary duty
    Duty free

  • 2933 99 80 87

    Carfentrazone-ethyl (ISOM) (CAS RN 128639-02-1) with a purity by weight of 90 % or more

    Ordinary duty
    Duty free

  • 2933 99 80 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 v4.0.1599, 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 34 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.

  • 2933.99.01.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate

    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

  • 2933.99.02.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester

    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

  • 2933.99.05.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Acridine and indole

    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

  • 2933.99.06.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole)

    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

  • 2933.99.08.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Aceto acetyl-5-amino benz imidazolone; 3-(2H-Benzo triazol-2-yl)-5-(tert-butyl)-4- hydroxy benzene propanoic acid, C7-C9 branched or linear alkyl esters; 2-(2H-Benzotriazol-2-yl)-6-dodecyl-4- methyl phenol, in liquid form, branched and linear; and 1,3,3-Trimethyl-2-methyleneindoline

    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

  • 2933.99.11.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Carbazole

    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

  • 2933.99.12.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, 6-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer

    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

  • 2933.99.14.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Pesticides, 5-Amino-4-chloro-α-phenyl-3- pyridazinone

    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 34 lines

  • 2933.99.16.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Pesticides, o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide)

    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

  • 2933.99.17.01

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Pesticides, Other, Insecticides

    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

  • 2933.99.22.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, 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

  • 2933.99.24.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Photographic chemicals

    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

  • 2933.99.26.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Antihistamines

    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

  • 2933.99.42.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Anti-infective agents, Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide

    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

  • 2933.99.46.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Anti-infective agents, 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

  • 2933.99.51.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Cardiovascular drugs, Hydralazine hydrochloride

    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

  • 2933.99.53.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Cardiovascular 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

  • 2933.99.55.10

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin

    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

  • 2933.99.55.20

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin sodium dihydrate

    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

  • 2933.99.55.30

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin sodium (anhydrous)

    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

  • 2933.99.55.90

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, 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

  • 2933.99.58.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Antidepressants, tranquilizers and other psychotherapeutic agents, Droperidol; and Imipramine hydrochloride

    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

  • 2933.99.61.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Antidepressants, tranquilizers and other psychotherapeutic agents, 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

  • 2933.99.65.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Anticonvulsants, hypnotics and sedatives

    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

  • 2933.99.70.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, 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

  • 2933.99.75.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, 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

  • 2933.99.79.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Products described in additional U.S. note 3 to section VI

    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

  • 2933.99.82.10

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Benzotriazole (CAS No. 95-14-7)

    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

  • 2933.99.82.20

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, Other, Tolyltriazole (CAS No. 29385-43-1)

    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

  • 2933.99.82.90

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Aromatic or modified aromatic, 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

  • 2933.99.85.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, 3-Amino-1,2,4-triazole

    General rate
    3.7%
    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

  • 2933.99.89.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Hexamethyleneimine

    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

  • 2933.99.90.00

    Heterocyclic compounds with nitrogen hetero-atom(s) only, Other, Drugs

    General rate
    3.7%
    From the EU
    3.7% 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

  • 2933.99.97.01

    Heterocyclic compounds with nitrogen hetero-atom(s) only, 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.

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.