Code 2929 90 · Heading 2929

Other compounds with nitrogen-containing groups, excluding amines, quaternary organic ammonium compounds, phospholipids, specified acid derivatives, imines, nitriles, diazo, azo and azoxy compounds, hydrazine or hydroxylamine derivatives, and isocyanates

This code covers compounds with nitrogen-containing groups that are not amines, quaternary organic ammonium salts or hydroxides, lecithins or other phosphoaminolipids, amides or imides of carboxylic or carbonic acid, imines, nitriles, diazo, azo or azoxy compounds, organic derivatives of hydrazine or hydroxylamine, or isocyanates. The key choice within this code is whether the product is N,N-dimethylphosphoramidic dichloride.

For example

N,N-dimethylphosphoramidic dichloride

See the official tariff text

Official tariff text

Compounds with nitrogen function (excl. amine-function compounds; oxygen-function amino-compounds; quaternary ammonium salts and hydroxides; lecithin and other phosphoaminolipids; carboxyamide-function compounds; amide-function compounds of carbonic acid; carboxyimide-function, imine-function or nitrile-function compounds; diazo-, azo- or azoxy-compounds; organic derivatives of hydrazine or of hydroxylamine and isocyanates)

How we got to this code

VI
29
2929
2929 90

Show the steps

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 2929 Compounds with other nitrogen function (excl. amine… 29 of 42 headings under chapter 29
Is the compound an isocyanate, or is it another nitrogen-containing compound covered here?
✓
Step 4 · Subheading 2929 90 Compounds with nitrogen function (excl. amine-funct… 2 of 2 subheadings under heading 2929
Is the product N,N-dimethylphosphoramidic dichloride?

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 6.5%

2 codes below this one

Compare the sibling codes

See all 2 codes at this level

2929 10 Isocyanates 6.5%
2929 90 Compounds with nitrogen function (excl. amine-function compounds; oxygen-function amino-compounds; quaternary ammonium salts and hydroxides; lecithin and other phosphoaminolipids; carboxyamide-function compounds; amide-function compounds of carbonic acid; carboxyimide-function, imine-function or nitrile-function compounds; diazo-, azo- or azoxy-compounds; organic derivatives of hydrazine or of hydroxylamine and isocyanates) you are here 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 lines6 Norwegian lines

29.29.9001 N,N-Dimethylphosphoramidic dichloride

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

Their lines8 British lines

2929 90 10 00 N,N-Dimethylphosphoramidic dichloride

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

Their lines9 US lines
Entry dateSept. 17, 2026

2929.90.05.00 Compounds with other nitrogen function

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 6 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.

29.29.9001

N,N-Dimethylphosphoramidic dichloride

Ordinary duty

Duty free
29.29.9002

Other

Ordinary duty

Duty free
29.29.9003

Dialkyl (methyl, ethyl, n-propyl or isopropyl) N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidates

Ordinary duty

Duty free
29.29.9004

N-(1-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts

Ordinary duty

Duty free
29.29.9005

O-Alkyl (H or ≤ C10, incl. cycloalkyl) N-(1-(dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤ C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated salts

Ordinary duty

Duty free
29.29.9009

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 8 British lines

Selling to Great Britain

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

2929 90 10 00

N,N-Dimethylphosphoramidic dichloride

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2929 90 90 10

Sodium cyclamate

Ordinary duty

Duty free
2929 90 90 30

Nitroguanidine (CAS RN 556-88-7)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2929 90 90 40

N-Butylphosphorothioic triamide (CAS RN 94317-64-3) 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.
2929 90 90 50

N-Propylphosphorothioic triamide (CAS RN 916809-14-8) 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.
2929 90 90 60

(2S)-2-[[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-Azidoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethylamino]-2-oxoethoxy]acetyl]amino]-N-[4-(hydroxymethyl)phenyl]-6-[[(4-methoxyphenyl)-diphenylmethyl]amino]hexanamide (CAS RN 1224601-12-0) 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.
2929 90 90 80

Wet paste or powder -with a content by weight of N',N''-[(2S,3E,5S)-1,6-diphenylhex-3-ene-2,5-diyl]bis(N,N-dimethylsulfuric diamide) (CAS RN 1247119-27-2) of 70 % or more, -with a content by weight of water of not more than 30 % -and with a dry weight purity of N',N''-[(2S,3E,5S)-1,6-diphenylhex-3-ene-2,5-diyl]bis(N,N-dimethylsulfuric diamide) (CAS RN 1247119-27-2) of 90 % or more

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2929 90 90 90

Other

Ordinary duty

Depends on the product details

Goods of EU origin

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

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

UK tariff data version v4.0.1599, 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 9 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.

2929.90.05.00

Compounds with other nitrogen function, Other, 2,2'-Bis(4-cyanatophenyl)-1,1,1,3,3,3-hexafluoro- propane; 2,2-Bis((4-cyanatophenyl) propane; 1,1-Ethylidenebis (phenyl-4-cyanate); 4,4'-Methylene bis(2,6-dimethylphenylcyanate); and 1,3-Phenylenebis (1-methylethylidenebis) cyanic acid, 1,4-phenylene 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
2929.90.15.00

Compounds with other nitrogen function, Other, Aromatic, 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
2929.90.20.00

Compounds with other nitrogen function, Other, 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
2929.90.50.15

Compounds with other nitrogen function, Other, N,N-Dialkyl (methyl, ethyl,n-propyl or isopropyl) phosphoramidic dihalides, N,N-Dimethylphosphoramidic 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
2929.90.50.18

Compounds with other nitrogen function, Other, N,N-Dialkyl (methyl, ethyl,n-propyl or isopropyl) phosphoramidic dihalides, 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
2929.90.50.20

Compounds with other nitrogen function, Other, Dialkyl (methyl, ethyl, n-propyl or isopropyl)-N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidates

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
2929.90.50.30

Compounds with other nitrogen function, Other, N-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts

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
2929.90.50.40

Compounds with other nitrogen function, Other, O-Alkyl (H or ≤C10, incl. cycloalkyl) N-(dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated salts

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 9 lines

2929.90.50.95

Compounds with other nitrogen function, 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.