Code 2926 30 · Heading 2926

Fenproporex and its salts, or the methadone intermediate 4-cyano-2-dimethylamino-4,4-diphenylbutane

This code covers fenproporex, its salts, and the methadone intermediate 4-cyano-2-dimethylamino-4,4-diphenylbutane. It is a specific group of nitriles, separate from the other nitriles listed under the neighbouring codes.

For example

Fenproporex
A salt of fenproporex
4-cyano-2-dimethylamino-4,4-diphenylbutane

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See the official tariff text

Official tariff text

Fenproporex "INN" and its salts; methadone "INN"-intermediate "4-cyano-2-dimethylamino-4,4-diphenylbutane"

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 2926 Nitrile-function compounds 26 of 42 headings under chapter 29
Is the product acrylonitrile; 1-cyanoguanidine (dicyandiamide); fenproporex or its salts; the methadone intermediate 4-cyano-2-dimethylamino-4,4-diphenylbutane; alpha-phenylacetoacetonitrile; or another nitrile?
✓
Step 4 · Subheading 2926 30 Fenproporex "INN" and its salts; methadone "INN"-in… 3 of 5 subheadings under heading 2926
Is it fenproporex, a salt of fenproporex, or the methadone intermediate 4-cyano-2-dimethylamino-4,4-diphenylbutane?

Full 8-digit codes

Pick the description that best matches your product.

1 code below this one

2926 30 00 Fenproporex "INN" and its salts; methadone "INN"-intermediate "4-cyano-2-dimethylamino-4,4-diphenylbutane" 6.5% Save

Compare the sibling codes

2926 10 Acrylonitrile 6.5%
2926 20 1-Cyanoguanidine "dicyandiamide" 6.5%
2926 30 Fenproporex "INN" and its salts; methadone "INN"-intermediate "4-cyano-2-dimethylamino-4,4-diphenylbutane" you are here 6.5%
2926 40 alpha-Phenylacetoacetonitrile 6.5%
2926 90 Nitrile-function compounds (excl. acrylonitrile, 1-cyanoguanidine "dicyandiamide", fenproporex "INN" and its salts, methadone "INN"-intermediate "4-cyano-2-dimethylamino-4,4-diphenylbutane" and alpha-Phenylacetoacetonitrile) 6.0%

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

29.26.3000

Fenproporex (INN), and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane)

Ordinary duty

Duty free

Goods of EU origin

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

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

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

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

2926 30 00 00

Fenproporex (INN) and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane)

Ordinary duty

Depends on the product details

Goods of EU origin

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

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

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 5 codes at this level

Previous code 2926 20

1-Cyanoguanidine "dicyandiamide"

you are here 2926 30

Fenproporex "INN" and its salts; methadone "INN"-intermediate "4-cyan…

Next code 2926 40

Alpha-Phenylacetoacetonitrile

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.