2933.19.90.00

Other

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

Unit: kg Heading: 2933 Chapter: 29 As of May 1, 2026

Duty rates

Column 1 (General / MFN)

6.5%

Column 2 (Non-NTR)

30.5%

Column 1 (Special / FTA)

Free

Eligible

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The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.

Trade measures (Chapter 99)

9903.03.01

The duty provided in the applicable subheading + 10%

Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.02

The duty provided in the applicable subheading

Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026

Effective from February 24, 2026 through July 24, 2026

9903.03.03

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.04

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.05

The duty provided in the applicable subheading

Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.06

The duty provided in the applicable subheading

Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.07

The duty provided in the applicable subheading

Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter

Applies to origin: CA

Effective from February 24, 2026 through July 24, 2026

9903.03.08

The duty provided in the applicable subheading

Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter

Applies to origin: MX

Effective from February 24, 2026 through July 24, 2026

9903.03.09

The duty provided in the applicable subheading

Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter

Applies to origin: CR, SV, GT, HN, NI, DO

Effective from February 24, 2026 through July 24, 2026

9903.03.10

The duty provided in the applicable subheading

Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering

Effective from February 24, 2026 through July 24, 2026

9903.03.11

The duty provided in the applicable subheading

Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds

Applies to origin: IL

Effective from February 24, 2026 through July 24, 2026

9903.88.03

LIST_1

The duty provided in the applicable subheading + 25%

Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Applies to origin: CN

Effective from August 23, 2018

Related CBP rulings

N358410 February 27, 2026

The tariff classification of Roflumilast (CAS No. 162401-32-3), imported in bulk form, from Mexico

Roflumilast, imported in bulk powder form, is a selective phosphodiesterase 4 (PDE4) inhibitor. It is indicated for the treatment of chronic obstructive pulmonary disease (COPD).

N348588 June 2, 2025

The tariff classification of Indacaterol Base (CAS No. 312753-06-3) in bulk powder form, from Spain

Indacaterol is a long-acting bronchodilator. It is indicated for the long-term maintenance treatment of airflow obstruction in patients with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema.

N347494 April 25, 2025

The tariff classification of Vilanterol Trifenatate (CAS No. 503070-58-4) in bulk powder form and Umeclidinium Bromide (CAS No. 869113-09-7) in bulk powder form, from India

Vilanterol Trifenatate is a selective long-acting 2-adrenergic agonist (LABA). It is used in combination with other bronchodilators for the management of chronic obstructive pulmonary disease (COPD), including chronic bronchitis and/or emph

N344795 December 27, 2024

The tariff classification of Omeprazole (CAS No. 73590-58-6) in bulk powder form, from Croatia

damage and ulcers caused by gastric acid and H. pylori infection. The applicable subheading for the Omeprazole in bulk powder form will be 2933.39.4100, Harmonized Tariff Schedule of the United States (HTSUS), which provides for “Heterocycl

N344588 December 23, 2024

The tariff classification of Letermovir (CAS No. 917389-32-3) in bulk form, from India

Letermovir is an antiviral drug indicated for the treatment of cytomegalovirus (CMV) infections. In your letter,

N342846 October 11, 2024

The tariff classification of Selumetinib Sulfate (CAS No. 943332-08-9) in bulk powder form, from Taiwan

Selumetinib Sulfate is a mitogen-activated protein kinases 1 and 2 (MEK1/2) inhibitor. It is indicated for the treatment of pediatric patients 2 years of age and older with neurofibromatosis type 1 (NF1) who have symptomatic, inoperable ple

N341975 September 3, 2024

The tariff classification of Edaravone (CAS No. 89-25-8) in bulk powder form, from Spain

Edaravone is a free radical scavenger and neuroprotective agent with antioxidant properties. It is indicated for the treatment of amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, a neurological disorder that affects

N339420 May 2, 2024

The tariff classification of Revefenacin (CAS No. 864750-70-9) in bulk form, from France

Revefenacin, is a long-acting muscarinic antagonist, which is also referred to as an anticholinergic. It is used to treat chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema. In your letter,

N337422 January 24, 2024

The tariff classification of Atrazine (CAS no. 1912-24-9) from China

The subject product, Atrazine Technical, is an herbicide. It is also known as 1-Chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine.

N337227 January 12, 2024

The tariff classification of Rilpivirine (CAS No. 500287-72-9) in bulk form, from Canada

Rilpivirine is a non-nucleoside reverse transcriptase inhibitor that inhibits the replication of HIV-1. It is an anti-viral indicated for the treatment of HIV infections.

N335403 October 11, 2023

The tariff classification of Bendamustine Hydrochloride (CAS No. 3543-75-7) in bulk powder form, from India

Bendamustine Hydrochloride is an antineoplastic agent. It is indicated for the treatment of chronic lymphocytic leukemia (CLL) and indolent B-cell non-Hodgkin lymphoma (NHL) that has progressed during or within six months of treatment with

N335370 October 4, 2023

The tariff classification of Selumetinib Sulfate (CAS No. 943332-08-9) in bulk crystal form, from Taiwan

Selumetinib Sulfate is a mitogen-activated protein kinases 1 and 2 (MEK1/2) inhibitor. It is indicated for the treatment of pediatric patients 2 years of age and older with neurofibromatosis type 1 (NF1) who have symptomatic, inoperable ple

Other codes in heading 2933

2933.11.00.00 Phenazone (Antipyrine) and its derivatives 2933.19.04.00 Aminomethylphenylpyrazole (Phenylmethylaminopyrazole); and 3-Methyl-1-(p-tolyl)-2-pyrazolin-5-one (p-Tolyl methyl pyrazolone) 2933.19.08.00 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)- benzenesulfonic acid; Amino-J-pyrazolone; 3-Amino-1-(2,4,6-trichlorophenyl)-5- pyrazolone; 3-Carboxy-1,4-sulfophenylpyrazol-5-one; 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1- yl)benzenesulfonic acid; 1-(m-Chlorophenyl)-3-methyl-2-pyrazolin- 5-one;p-Chloropyrazolone; 1-(2',5'-Dichlorophenyl)-3-methyl-2- pyrazolin-5-one; 1-(o-Ethylphenyl)-3-methyl-2-pyrazolin- 5-one; 5-Imino-3-methyl-1-phenylpyrazole; 5-Imino-3-methyl-1-(m-sulfophenyl)- pyrazole; 2,4-Methylcarboxypyrazolic acid; Methylphenylpyrazolone; and Sulfinpyrazone 2933.19.15.00 1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (Difenzoquat methyl sulfate) 2933.19.18.00 2-Chloro-5-sulfophenylmethylpyrazolone; 2,5-Dichloro-4-(3-methyl-5-oxo-2- pyrazolin-1-yl) benzenesulfonic acid; Phenyl carbethoxypyrazolone;m-Sulfaminopyrazolone (m-Sulfamido- phenyl methyl pyrazolone); and 1-(p-Sulfophenyl)-3-methyl pyrazolone 2933.19.23.00 Pesticides 2933.19.30 Photographic chemicals 2933.19.30.10 Couplers, for use in color negative photographic paper 2933.19.30.95 Other 2933.19.35.00 Drugs 2933.19.37.00 Products described in additional U.S. note 3 to section VI 2933.19.43.00 Other 2933.19.45.00 Drugs 2933.19.70.00 3-Methyl-5-pyrazolone 2933.21.00.00 Hydantoin and its derivatives 2933.29.05.00 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1H-imidazole (Triflumizole); and Ethylene thiourea 2933.29.10.00 2-Phenylimidazole 2933.29.20.00 Drugs 2933.29.35.00 Products described in additional U.S. note 3 to section VI 2933.29.43.00 Other

View all codes in heading 2933 →

Duty by origin country

The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2933.19.90.00 from each major US trading partner.

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