# United States tariff lines under HS 2933.99

> The United States tariff splits HS 2933.99 (other: Other) into 34 national lines: 2933.99.01.00 (butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate), 2933.99.02.00 (2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester), 2933.99.05.00 (acridine and indole), 2933.99.06.00 (α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole)) and 30 others.

Source: https://border.bot/countries/united-states/hs-codes/293399
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2933.99](https://border.bot/countries/united-states/hs-codes/293399)

## Key facts

- HS subheading: [2933.99](https://border.bot/hs-codes/293399)
- National lines: 34
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2933.99

The United States tariff splits HS 2933.99 (other: Other) into 34 national lines: 2933.99.01.00 (butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate), 2933.99.02.00 (2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester), 2933.99.05.00 (acridine and indole), 2933.99.06.00 (α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole)) and 30 others.

- [2933.99.01.00](https://border.bot/countries/united-states/hs-codes/2933990100) Other, Other, Aromatic or modified aromatic, Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate. Duty (MFN): free
- [2933.99.02.00](https://border.bot/countries/united-states/hs-codes/2933990200) Other, Other, Aromatic or modified aromatic, 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester. Duty (MFN): free
- [2933.99.05.00](https://border.bot/countries/united-states/hs-codes/2933990500) Other, Other, Aromatic or modified aromatic, Acridine and indole. Duty (MFN): free
- [2933.99.06.00](https://border.bot/countries/united-states/hs-codes/2933990600) Other, Other, Aromatic or modified aromatic, α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole). Duty (MFN): 6.5%
- [2933.99.08.00](https://border.bot/countries/united-states/hs-codes/2933990800) Other, Other, Aromatic or modified aromatic, Aceto acetyl-5-amino benz imidazolone; 3-(2H-Benzo triazol-2-yl)-5-(tert-butyl)-4- hydroxy benzene propanoic acid, C7-C9 branched or linear alkyl esters; 2-(2H-Benzotriazol-2-yl)-6-dodecyl-4- methyl phenol, in liquid form, branched and linear; and 1,3,3-Trimethyl-2-methyleneindoline. Duty (MFN): free
- [2933.99.11.00](https://border.bot/countries/united-states/hs-codes/2933991100) Other, Other, Aromatic or modified aromatic, Carbazole. Duty (MFN): free
- [2933.99.12.00](https://border.bot/countries/united-states/hs-codes/2933991200) Other, Other, Aromatic or modified aromatic, 6-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer. Duty (MFN): 5.8%
- [2933.99.14.00](https://border.bot/countries/united-states/hs-codes/2933991400) Other, Other, Aromatic or modified aromatic, Other, Pesticides, 5-Amino-4-chloro-α-phenyl-3- pyridazinone. Duty (MFN): 6.5%
- [2933.99.16.00](https://border.bot/countries/united-states/hs-codes/2933991600) Other, Other, Aromatic or modified aromatic, Other, Pesticides, o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide). Duty (MFN): free
- [2933.99.17.01](https://border.bot/countries/united-states/hs-codes/2933991701) Other, Other, Aromatic or modified aromatic, Other, Pesticides, Other, Insecticides. Duty (MFN): 6.5%
- [2933.99.22.00](https://border.bot/countries/united-states/hs-codes/2933992200) Other, Other, Aromatic or modified aromatic, Other, Pesticides, Other, Other. Duty (MFN): 6.5%
- [2933.99.24.00](https://border.bot/countries/united-states/hs-codes/2933992400) Other, Other, Aromatic or modified aromatic, Other, Photographic chemicals. Duty (MFN): 6.5%
- [2933.99.26.00](https://border.bot/countries/united-states/hs-codes/2933992600) Other, Other, Aromatic or modified aromatic, Other, Drugs, Antihistamines. Duty (MFN): 6.5%
- [2933.99.42.00](https://border.bot/countries/united-states/hs-codes/2933994200) Other, Other, Aromatic or modified aromatic, Other, Drugs, Anti-infective agents, Acriflavine; Acriflavine hydrochloride; Carbadox; and Pyrazinamide. Duty (MFN): free
- [2933.99.46.00](https://border.bot/countries/united-states/hs-codes/2933994600) Other, Other, Aromatic or modified aromatic, Other, Drugs, Anti-infective agents, Other. Duty (MFN): 6.5%
- [2933.99.51.00](https://border.bot/countries/united-states/hs-codes/2933995100) Other, Other, Aromatic or modified aromatic, Other, Drugs, Cardiovascular drugs, Hydralazine hydrochloride. Duty (MFN): free
- [2933.99.53.00](https://border.bot/countries/united-states/hs-codes/2933995300) Other, Other, Aromatic or modified aromatic, Other, Drugs, Cardiovascular drugs, Other. Duty (MFN): 6.5%
- [2933.99.55.10](https://border.bot/countries/united-states/hs-codes/2933995510) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin. Duty (MFN): 6.5%
- [2933.99.55.20](https://border.bot/countries/united-states/hs-codes/2933995520) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin sodium dihydrate. Duty (MFN): 6.5%
- [2933.99.55.30](https://border.bot/countries/united-states/hs-codes/2933995530) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Tolmetin sodium (anhydrous). Duty (MFN): 6.5%
- [2933.99.55.90](https://border.bot/countries/united-states/hs-codes/2933995590) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Analgesics, antipyretics and nonhormonal anti-inflammatory agents, Other. Duty (MFN): 6.5%
- [2933.99.58.00](https://border.bot/countries/united-states/hs-codes/2933995800) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Antidepressants, tranquilizers and other psychotherapeutic agents, Droperidol; and Imipramine hydrochloride. Duty (MFN): free
- [2933.99.61.00](https://border.bot/countries/united-states/hs-codes/2933996100) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Antidepressants, tranquilizers and other psychotherapeutic agents, Other. Duty (MFN): 6.5%
- [2933.99.65.00](https://border.bot/countries/united-states/hs-codes/2933996500) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Anticonvulsants, hypnotics and sedatives. Duty (MFN): 6.5%
- [2933.99.70.00](https://border.bot/countries/united-states/hs-codes/2933997000) Other, Other, Aromatic or modified aromatic, Other, Drugs, Drugs primarily affecting the central nervous system, Other. Duty (MFN): 6.5%
- [2933.99.75.00](https://border.bot/countries/united-states/hs-codes/2933997500) Other, Other, Aromatic or modified aromatic, Other, Drugs, Other. Duty (MFN): 6.5%
- [2933.99.79.00](https://border.bot/countries/united-states/hs-codes/2933997900) Other, Other, Aromatic or modified aromatic, Other, Other, Products described in additional U.S. note 3 to section VI. Duty (MFN): 6.5%
- [2933.99.82.10](https://border.bot/countries/united-states/hs-codes/2933998210) Other, Other, Aromatic or modified aromatic, Other, Other, Other, Benzotriazole (CAS No. 95-14-7). Duty (MFN): 6.5%
- [2933.99.82.20](https://border.bot/countries/united-states/hs-codes/2933998220) Other, Other, Aromatic or modified aromatic, Other, Other, Other, Tolyltriazole (CAS No. 29385-43-1). Duty (MFN): 6.5%
- [2933.99.82.90](https://border.bot/countries/united-states/hs-codes/2933998290) Other, Other, Aromatic or modified aromatic, Other, Other, Other, Other. Duty (MFN): 6.5%
- [2933.99.85.00](https://border.bot/countries/united-states/hs-codes/2933998500) Other, Other, Other, 3-Amino-1,2,4-triazole. Duty (MFN): 3.7%
- [2933.99.89.00](https://border.bot/countries/united-states/hs-codes/2933998900) Other, Other, Other, Hexamethyleneimine. Duty (MFN): free
- [2933.99.90.00](https://border.bot/countries/united-states/hs-codes/2933999000) Other, Other, Other, Other, Drugs. Duty (MFN): 3.7%
- [2933.99.97.01](https://border.bot/countries/united-states/hs-codes/2933999701) Other, Other, Other, Other, Other. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2933.99 yet.

- [The Harmonized System text for 2933.99](https://border.bot/hs-codes/293399)

- Previous subheading: [2933.92](https://border.bot/countries/united-states/hs-codes/293392) Heterocyclic compounds with nitrogen hetero-atom(s) only
- Next subheading: [2934.10](https://border.bot/countries/united-states/hs-codes/293410) Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2933.99?

The United States tariff splits HS 2933.99 (other: Other) into 34 national lines: 2933.99.01.00 (butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoate), 2933.99.02.00 (2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl ester), 2933.99.05.00 (acridine and indole), 2933.99.06.00 (α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole)) and 30 others.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/293399.json