Code 2933 69 · Heading 2933

Nitrogen-only heterocyclic compounds with a non-fused triazine ring, excluding melamine and specifically listed triazine products

This category covers heterocyclic compounds whose heteroatoms are only nitrogen and whose structure contains a non-fused triazine ring, including hydrogenated forms. It excludes melamine and the triazine products listed under the more specific subcategories.

See the official tariff text

Official tariff text

Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused triazine ring, whether or not hydrogenated, in the structure (excl. melamine)

How we got to this code

VI
29
2933
2933 69

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The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section VI Products of the chemical or allied industries
Is it an inorganic or organic chemical; a pharmaceutical product; a fertilizer; a tanning or dye extract, pigment, paint, varnish, filler or printing ink; an essential oil, perfume, cosmetic or toilet product; soap, a surface-active, washing, cleaning, polishing or wax product; a protein, modified starch, glue or enzyme; an explosive, pyrotechnic article, match or other specified combustible material; a photographic or cinematographic product; or another chemical product?
✓
Step 2 · Chapter 29 Organic chemicals 2 of 11 chapters in section VI
What type of organic chemical is it—for example, a hydrocarbon, alcohol, acid, nitrogen compound, sulfur compound, heterocyclic compound, vitamin, hormone, glycoside, plant alkaloid, sugar, antibiotic or another listed organic compound?
✓
Step 3 · Heading 2933 Heterocyclic compounds with nitrogen hetero-atom[s]… 33 of 42 headings under chapter 29
Does it contain one of the specifically named ring structures, a lactam, or one of the specifically listed substances in the subcategories?
✓
Step 4 · Subheading 2933 69 Heterocyclic compounds with nitrogen hetero-atom[s]… 21 of 27 subheadings under heading 2933
Which description applies: atrazine, propazine, simazine or hexogen; methenamine or the specifically named di-tert-butyl triazine compound; or another nitrogen-only heterocyclic compound with a non-fused triazine ring?

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 0.0–5.5%

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 lines2 Norwegian lines

29.33.6901 Methenamine (hexamine)

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

Their lines20 British lines

2933 69 10 00 Atrazine (ISO); propazine (ISO); simazine (ISO); hexahydro-1,3,5-trinitro-1,3,5-triazine

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

Their lines7 US lines
Entry dateSept. 17, 2026

2933.69.20.00 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 2 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.

29.33.6901

Methenamine (hexamine)

Ordinary duty

Duty free
29.33.6909

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 20 British lines

Selling to Great Britain

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

2933 69 10 00

Atrazine (ISO); propazine (ISO); simazine (ISO); hexahydro-1,3,5-trinitro-1,3,5-triazine (hexogen, trimethylenetrinitramine)

Ordinary duty

4.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 40 00

Methenamine (INN) (hexamethylenetetramine); 2,6-di-tert-butyl-4-[4,6-bis(octylthio)-1,3,5-triazin-2-ylamino]phenol

Ordinary duty

Duty free
2933 69 80 13

Metribuzin (ISO) (CAS RN 21087-64-9) with a purity by weight of 93 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 15

2-Chloro-4,6-dimethoxy-1,3,5-triazine (CAS RN 3140-73-6)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 17

Benzoguanamine (CAS RN 91-76-9)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 23

1,3,5-tris(2,3-dibromopropyl)-1,3,5-triazinane-2,4,6-trione (CAS RN 52434-90-9)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 27

Troclosene sodium dihydrate (INNM) (CAS RN 51580-86-0)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 30

1,3,5-Tris[3-(dimethylamino)propyl]hexahydro-1,3,5-triazine (CAS RN 15875-13-5)

Ordinary duty

6.0%

Goods of EU origin

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

Show all 20 lines

2933 69 80 33

2,4,6-Trichloro-1,3,5-triazine (CAS RN 108-77-0) with a purity by weight of 99 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 38

Tris({[1,1'-biphenyl]-4-yl})-1,3,5-triazine (CAS RN 31274-51-8) with a purity by weight of 97 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 40

Troclosene sodium (INNM) (CAS RN 2893-78-9)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 43

4-(4,6-Bis((biphenyl-4-yl)-1,3,5-triazine-2-yl)-1,3-benzodiole (CAS RN 182918-16-7) with a purity by weight of 96 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 48

2-(4,6-Bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol (CAS RN 2725-22-6) with a purity by weight of 98 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 55

Terbutryn (ISO) (CAS RN 886-50-0) for use as a raw material for the production of technical preservatives, in other sectors than for pesticides

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 60

Cyanuric acid (CAS RN 108-80-5)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 65

1,3,5-Triazine-2,4,6(1H,3H,5H)-trithione, trisodium salt (CAS RN 17766-26-6)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 70

Trichloroisocyanuric acid, also referred to as ‘symclosene’ under the international non-proprietary name (INN)

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 69 80 75

Metamitron (ISO) (CAS RN 41394-05-2)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 80 80

Tris(2-hydroxyethyl)-1,3,5-triazinetrione (CAS RN 839-90-7)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2933 69 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 7 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.

2933.69.20.00

Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure, Other, 2,4-Diamino-6-phenyl-1,3,5-triazine

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
2933.69.50.00

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

General rate

6.3%

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
2933.69.60.10

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

General rate

3.5%

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
2933.69.60.15

Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure, Other, Pesticides, Sodium dichloroisocyanurate and trichloroisocyanuric acid

General rate

3.5%

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
2933.69.60.21

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

General rate

3.5%

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
2933.69.60.30

Heterocyclic compounds with nitrogen hetero-atom(s) only, Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure, Other, Products used principally for rubber processing

General rate

3.5%

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
2933.69.60.50

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

General rate

3.5%

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.