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Code 2932 20 · Heading 2932

Lactones

This group covers lactones, including phenolphthalein, gamma-butyrolactone and other lactones. The specific child entry depends on which of these three product types the lactone is.

For example

  • Phenolphthalein
  • Gamma-butyrolactone
  • A lactone other than gamma-butyrolactone or phenolphthalein
See the official tariff text

Official tariff text

Lactones

How we got to this code

  1. VI
  2. 29
  3. 2932
  4. 2932 20
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 13 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

29.32.2001 Gamma-butyrolactone (GBL)

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines22 British lines

2932 20 10 00 Phenolphthalein

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

6.5% or 15.0%

Depends on a question

  • Their lines10 US lines
  • Entry dateSept. 17, 2026

2932.20.05.00 Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Coumarin

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.

  • 29.32.2001

    Gamma-butyrolactone (GBL)

    Ordinary duty
    Duty free

  • 29.32.2009

    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 22 British lines

Selling to Great Britain

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

  • 2932 20 10 00

    Phenolphthalein; 1-hydroxy-4-[1-(4-hydroxy-3-methoxycarbonyl-1-naphthyl)-3-oxo-1H,3H-benzo[de]isochromen-1-yl]-6-octadecyloxy-2-naphthoic acid; 3′-chloro-6′-cyclohexylaminospiro[isobenzofuran-1(3H),9′-xanthen]-3-one; 6′-(N-ethyl-p-toluidino)-2′-methylspiro[isobenzofuran-1(3H),9′-xanthen]-3-one; methyl-6-docosyloxy-1-hydroxy-4-[1-(4-hydroxy-3-methyl-1-phenanthryl)-3-oxo-1H,3H-naphtho[1,8-cd]pyran-1-yl]naphthalene-2-carboxylate

    Ordinary duty
    Duty free

  • 2932 20 20 00

    gamma-Butyrolactone

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 15

    Coumarin (CAS RN 91-64-5)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 18

    4-Hydroxycoumarin (CAS-RN 1076-38-6) 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.

  • 2932 20 90 25

    Decan-5-olide (CAS RN 705-86-2)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 28

    (R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)furan-2(5H)-one (CAS RN 2875066-35-4) 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.

  • 2932 20 90 30

    Dodecan-5-olide (CAS RN 713-95-1)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 33

    6-Cyclohexyl-4-methyl-2H-pyran-2-one (CAS RN 14818-35-0) with a purity of 99 % by weight or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.
Show all 22 lines

  • 2932 20 90 38

    6-Dimethylamino-3,3-bis(4-dimethylaminophenyl)phthalide (CAS RN 1552-42-7) 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.

  • 2932 20 90 40

    (S)-(−)-α-Amino-γ-butyrolactonehydrobromide (CAS RN 15295-77-9)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 45

    2,2-Dimethyl-1,3-dioxane-4,6-dione (CAS RN 2033-24-1)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 50

    L-Lactide (CAS RN 4511-42-6), D-lactide (CAS RN 13076-17-0), dilactide (CAS RN 95-96-5) or meso-lactide (CAS RN 13076-19-2), each with a purity by weight 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.

  • 2932 20 90 60

    6'-(Diethylamino)-3'-methyl-2'-(phenylamino)-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (CAS RN 29512-49-0)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 63

    Selamectin (INN) 5Z-isomer (CAS RN 220119-17-5)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 65

    Sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate (CAS RN 1134960-41-0)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 71

    6'-(Dibutylamino)-3'-methyl-2'-(phenylamino)-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one (CAS RN 89331-94-2)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 75

    3-Acetyl-6-methyl-2H-pyran-2, 4(3H)-dione (CAS RN 520-45-6)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 77

    Hexan-6-olide (CAS RN 502-44-3)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 80

    Gibberellic acid (CAS RN 77-06-5) with a purity by weight of 88% or more, for use in the manufacture of plant protection products

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 84

    Decahydro-3a,6,6,9a-tetramethylnaphth [2,1-b] furan-2 (1H)-one (CAS RN 564-20-5)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 90 88

    Methylcoumarins and ethylcoumarins

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2932 20 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 10 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.

  • 2932.20.05.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Coumarin, methylcoumarins and ethylcoumarins

    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

  • 2932.20.10.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Aromatic, Pesticides

    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

  • 2932.20.20.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Aromatic, Drugs

    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

  • 2932.20.25.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Aromatic, Other, 4-Hydroxycoumarin

    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

  • 2932.20.30.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, 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

  • 2932.20.45.00

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, 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

  • 2932.20.50.10

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Butyrolactone

    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

  • 2932.20.50.20

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Glucono-δ-lactone

    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
Show all 10 lines

  • 2932.20.50.30

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other, Sodium erythorbate (Sodium isoascorbate)

    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

  • 2932.20.50.50

    Heterocyclic compounds with oxygen hetero-atom(s) only, Lactones, Other

    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

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.