# United States tariff lines under HS 2933.49

> The United States tariff splits HS 2933.49 (compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: Other) into 9 national lines: 2933.49.08.00 (4,7-Dichloroquinoline), 2933.49.10.00 (ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline)), 2933.49.15.00 (8-Methylquinoline and Isoquinoline), 2933.49.17.00 (ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate) and 5 others.

Source: https://border.bot/countries/united-states/hs-codes/293349
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) / [2933.49](https://border.bot/countries/united-states/hs-codes/293349)

## Key facts

- HS subheading: [2933.49](https://border.bot/hs-codes/293349)
- National lines: 9
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2933.49

The United States tariff splits HS 2933.49 (compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: Other) into 9 national lines: 2933.49.08.00 (4,7-Dichloroquinoline), 2933.49.10.00 (ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline)), 2933.49.15.00 (8-Methylquinoline and Isoquinoline), 2933.49.17.00 (ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate) and 5 others.

- [2933.49.08.00](https://border.bot/countries/united-states/hs-codes/2933490800) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, 4,7-Dichloroquinoline. Duty (MFN): 6.5%
- [2933.49.10.00](https://border.bot/countries/united-states/hs-codes/2933491000) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline). Duty (MFN): 6.5%
- [2933.49.15.00](https://border.bot/countries/united-states/hs-codes/2933491500) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, 8-Methylquinoline and Isoquinoline. Duty (MFN): 5.8%
- [2933.49.17.00](https://border.bot/countries/united-states/hs-codes/2933491700) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate. Duty (MFN): free
- [2933.49.20.00](https://border.bot/countries/united-states/hs-codes/2933492000) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Other, Drugs, 5-Chloro-7-iodo-8-quinolinol (Iodo chlo rhydroxy quin); Deco quinate; Diiodo hydroxy quin; and Oxy quinoline sulfate. Duty (MFN): 6.5%
- [2933.49.26.00](https://border.bot/countries/united-states/hs-codes/2933492600) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Other, Drugs, Other. Duty (MFN): 6.5%
- [2933.49.30.00](https://border.bot/countries/united-states/hs-codes/2933493000) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Other, Pesticides. Duty (MFN): 6.5%
- [2933.49.60.00](https://border.bot/countries/united-states/hs-codes/2933496000) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Other, Other, Products described in additional U.S. note 3 to section VI. Duty (MFN): 6.5%
- [2933.49.70.00](https://border.bot/countries/united-states/hs-codes/2933497000) Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused, Other, Other, Other, Other. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2933.49 yet.

- [The Harmonized System text for 2933.49](https://border.bot/hs-codes/293349)

- Previous subheading: [2933.41](https://border.bot/countries/united-states/hs-codes/293341) Heterocyclic compounds with nitrogen hetero-atom(s) only
- Next subheading: [2933.52](https://border.bot/countries/united-states/hs-codes/293352) Malonylurea (Barbituric acid) and its salts

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2933.49?

The United States tariff splits HS 2933.49 (compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: Other) into 9 national lines: 2933.49.08.00 (4,7-Dichloroquinoline), 2933.49.10.00 (ethoxyquin (1,2-Dihydro-6-ethoxy-2,2,4- trimethylquinoline)), 2933.49.15.00 (8-Methylquinoline and Isoquinoline), 2933.49.17.00 (ethyl ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3- quinolinecarboxylate) and 5 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/293349.json